Eco Obd2 Avis highlights the importance of understanding the realities of fuel-saving gadgets and how to make informed decisions. MERCEDES-DIAGNOSTIC-TOOL.EDU.VN offers in-depth insights and diagnostic tools to help you optimize your Mercedes-Benz’s performance efficiently. Explore the efficacy of OBD2 chips and discover alternatives like eco-driving techniques and professional diagnostic services for vehicle performance enhancement.
Contents
- 1. What Is Eco OBD2 and How Does It Supposedly Work?
- 2. What Do Reviews Say About Eco OBD2?
- 3. What Are the Potential Benefits and Drawbacks of Using Eco OBD2?
- Potential Benefits:
- Drawbacks:
- 4. How Does Eco OBD2 Compare to Professional ECU Remapping?
- 5. What Are the Key Features To Look For in a Legitimate OBD2 Scanner?
- 6. What Are the Best Eco-Driving Techniques to Improve Fuel Efficiency?
- 7. How Can Regular Vehicle Maintenance Impact Fuel Economy?
- 8. How to Use an OBD2 Scanner to Monitor Fuel Efficiency?
- 9. What Are Common OBD2 Codes Related to Fuel Efficiency?
1. What Is Eco OBD2 and How Does It Supposedly Work?
Eco OBD2 is a plug-in device marketed as a fuel-saving tool for vehicles. It connects to the car’s On-Board Diagnostics (OBD) II port, typically located under the steering wheel or in the center console. The device claims to optimize fuel consumption by communicating with the car’s Engine Control Unit (ECU). According to manufacturers, Eco OBD2 remaps the ECU to adjust fuel injection, ignition timing, and other parameters, leading to improved fuel efficiency. This remapping supposedly adapts to the driver’s habits, further enhancing fuel economy over time.
However, independent testing and expert reviews often reveal that Eco OBD2 devices do not deliver the promised fuel savings. Steve Mestdagh, an automotive expert, noted that these devices often fail to establish a genuine connection with the car’s computer and, therefore, cannot alter its performance. The ADAC (German Automobile Club) also tested similar plug-ins and found no measurable impact on fuel consumption, despite the devices appearing to function with flashing lights and electronic circuits.
2. What Do Reviews Say About Eco OBD2?
Reviews of Eco OBD2 are mixed, but a significant number are skeptical about its effectiveness. Many users report no noticeable improvement in fuel economy after installing the device. Some even experienced issues such as error codes or unusual engine behavior. The consensus among automotive experts is that Eco OBD2 rarely lives up to its claims.
Several reviews highlight that the perceived benefits are more likely due to the placebo effect. Drivers who install the device might become more conscious of their driving habits, leading to smoother acceleration, consistent speeds, and reduced idling, which naturally improve fuel efficiency. However, these improvements are attributed to changes in driving behavior rather than the device itself.
Moreover, many online marketplaces are flooded with counterfeit or substandard Eco OBD2 devices. These products are often poorly manufactured and may even damage the car’s electrical system. Therefore, it’s crucial to approach Eco OBD2 with caution and thoroughly research before making a purchase.
3. What Are the Potential Benefits and Drawbacks of Using Eco OBD2?
Potential Benefits:
- Placebo Effect: Installation might encourage more fuel-efficient driving habits.
- Easy Installation: Simple plug-and-play design.
Drawbacks:
- Lack of Proven Fuel Savings: Most tests show no significant improvement.
- Potential for Electrical Issues: Substandard devices could harm the car’s system.
- Misleading Marketing: Overstated claims of fuel efficiency gains.
According to a study by the University of California, Berkeley, devices claiming to improve fuel efficiency without altering driving behavior are often ineffective. The study emphasized that real fuel savings come from a combination of vehicle maintenance, efficient driving habits, and proven technologies.
4. How Does Eco OBD2 Compare to Professional ECU Remapping?
Eco OBD2 is often compared to professional ECU remapping, but the two are fundamentally different. Eco OBD2 claims to adjust the ECU parameters automatically after plugging in, without any custom configuration. In contrast, professional ECU remapping involves a skilled technician who manually recalibrates the ECU software to optimize performance. This process requires specialized equipment, detailed knowledge of engine management systems, and often includes dyno testing to fine-tune the settings.
Professional ECU remapping can indeed improve fuel efficiency and performance. However, it’s a complex procedure that should only be performed by qualified professionals. Incorrect remapping can damage the engine, void the warranty, and even lead to safety issues. While Eco OBD2 is marketed as a simple, DIY solution, it lacks the precision and expertise of professional ECU remapping.
5. What Are the Key Features To Look For in a Legitimate OBD2 Scanner?
When selecting an OBD2 scanner for your Mercedes-Benz, prioritize these key features:
- Compatibility: Ensure the scanner supports Mercedes-Benz specific diagnostic codes.
- Functionality: Look for features like live data streaming, freeze frame data, and component testing.
- User Interface: A clear, easy-to-navigate interface is essential for efficient diagnostics.
- Update Capability: Regular software updates ensure compatibility with new models and diagnostic protocols.
- Reliability: Choose a scanner from a reputable brand with positive user reviews.
6. What Are the Best Eco-Driving Techniques to Improve Fuel Efficiency?
Eco-driving techniques are proven methods to reduce fuel consumption without relying on gadgets. These techniques focus on optimizing driving habits and vehicle maintenance.
- Smooth Acceleration: Avoid abrupt acceleration and braking.
- Maintain Consistent Speed: Use cruise control on highways to maintain a steady pace.
- Anticipate Traffic: Look ahead to anticipate traffic flow and avoid unnecessary braking.
- Reduce Idling: Turn off the engine when stopped for more than a few seconds.
- Proper Tire Inflation: Maintain recommended tire pressure for optimal rolling resistance.
- Regular Maintenance: Keep the engine tuned and filters clean for efficient operation.
7. How Can Regular Vehicle Maintenance Impact Fuel Economy?
Regular vehicle maintenance plays a crucial role in maintaining optimal fuel economy. According to the U.S. Department of Energy, neglecting maintenance can reduce fuel efficiency by as much as 30%. Key maintenance tasks include:
- Oil Changes: Regular oil changes ensure the engine runs smoothly and efficiently.
- Air Filter Replacement: A clean air filter allows optimal airflow to the engine.
- Spark Plug Replacement: Worn spark plugs can reduce combustion efficiency.
- Tire Maintenance: Proper tire inflation and alignment reduce rolling resistance.
- Fluid Checks: Regularly check and top off fluids like coolant, brake fluid, and transmission fluid.
8. How to Use an OBD2 Scanner to Monitor Fuel Efficiency?
An OBD2 scanner can be used to monitor various parameters that affect fuel efficiency. By connecting the scanner to the OBD2 port, you can access live data such as:
- Fuel Consumption Rate: Instantaneous and average fuel consumption.
- Engine Load: The percentage of maximum engine power being used.
- Airflow Rate: The amount of air entering the engine.
- Oxygen Sensor Readings: Indicates the efficiency of combustion.
- Engine Temperature: Optimal engine temperature ensures efficient operation.
Monitoring these parameters can help you identify driving habits or mechanical issues that are impacting fuel economy. For instance, high engine load during acceleration indicates inefficient driving, while abnormal oxygen sensor readings may suggest a faulty sensor or exhaust leak.
9. What Are Common OBD2 Codes Related to Fuel Efficiency?
Several OBD2 codes are directly related to fuel efficiency. These codes can indicate issues with the engine, fuel system, or emissions control system.
| Code | Description | Possible Causes |
|---|---|---|
| P0171 | System Too Lean (Bank 1) | Vacuum leak, faulty MAF sensor, clogged fuel filter, low fuel pressure |
| P0174 | System Too Lean (Bank 2) | Vacuum leak, faulty MAF sensor, clogged fuel filter, low fuel pressure |
| P0300 | Random/Multiple Cylinder Misfire Detected | Faulty spark plugs, ignition coils, fuel injectors, vacuum leak |
| P0420 | Catalyst System Efficiency Below Threshold (Bank 1) | Faulty catalytic converter, oxygen sensors, exhaust leak |
| P0440 | Evaporative Emission Control System Malfunction | Leaking gas cap, faulty purge valve, damaged vapor lines |
| P0113 | Intake Air Temperature Sensor Circuit High Input | Faulty IAT sensor, wiring issue |
| P0102 | Mass or Volume Air Flow Circuit Low Input | Faulty MAF sensor, wiring issue, vacuum leak |
| P0131 | O2 Sensor Circuit Low Voltage (Bank 1, Sensor 1) | Faulty oxygen sensor, exhaust leak, wiring issue |
| P0137 | O2 Sensor Circuit Low Voltage (Bank 1, Sensor 2) | Faulty oxygen sensor, exhaust leak, wiring issue |
| P0191 | Fuel Rail Pressure Sensor Circuit Range/Performance | Faulty fuel rail pressure sensor, fuel pump issue, fuel filter restriction |
| P0455 | Evaporative Emission Control System Leak Detected (Gross Leak/No Flow) | Loose or missing gas cap, damaged EVAP lines, faulty purge valve |
| P0301 | Cylinder 1 Misfire Detected | Faulty ignition coil, spark plug, fuel injector; low compression in cylinder 1 |
| P0302 | Cylinder 2 Misfire Detected | Faulty ignition coil, spark plug, fuel injector; low compression in cylinder 2 |
| P0303 | Cylinder 3 Misfire Detected | Faulty ignition coil, spark plug, fuel injector; low compression in cylinder 3 |
| P0304 | Cylinder 4 Misfire Detected | Faulty ignition coil, spark plug, fuel injector; low compression in cylinder 4 |
| P0101 | Mass or Volume Air Flow Circuit Range/Performance | Dirty or faulty MAF sensor, vacuum leaks, improper installation of MAF sensor |
| P0103 | Mass or Volume Air Flow Circuit High Input | Faulty MAF sensor, wiring issue |
| P0112 | Intake Air Temperature Sensor Circuit Low Input | Faulty IAT sensor, wiring issue |
| P0118 | Engine Coolant Temperature Circuit High Input | Faulty ECT sensor, wiring issue |
| P0122 | Throttle/Pedal Position Sensor/Switch A Circuit Low Input | Faulty TPS, wiring issue |
| P0123 | Throttle/Pedal Position Sensor/Switch A Circuit High Input | Faulty TPS, wiring issue |
| P0130 | O2 Sensor Circuit (Bank 1, Sensor 1) | Faulty oxygen sensor, exhaust leaks, wiring issues |
| P0132 | O2 Sensor Circuit High Voltage (Bank 1, Sensor 1) | Faulty oxygen sensor, wiring issue, rich fuel mixture |
| P0136 | O2 Sensor Circuit (Bank 1, Sensor 2) | Faulty oxygen sensor, exhaust leaks, wiring issues |
| P0138 | O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) | Faulty oxygen sensor, wiring issue, rich fuel mixture |
| P0141 | O2 Sensor Heater Circuit (Bank 1, Sensor 2) | Faulty oxygen sensor, wiring issue |
| P0150 | O2 Sensor Circuit (Bank 2, Sensor 1) | Faulty oxygen sensor, exhaust leaks, wiring issues |
| P0152 | O2 Sensor Circuit High Voltage (Bank 2, Sensor 1) | Faulty oxygen sensor, wiring issue, rich fuel mixture |
| P0156 | O2 Sensor Circuit (Bank 2, Sensor 2) | Faulty oxygen sensor, exhaust leaks, wiring issues |
| P0158 | O2 Sensor Circuit High Voltage (Bank 2, Sensor 2) | Faulty oxygen sensor, wiring issue, rich fuel mixture |
| P0161 | O2 Sensor Heater Circuit (Bank 2, Sensor 2) | Faulty oxygen sensor, wiring issue |
| P0190 | Fuel Rail Pressure Sensor Circuit | Faulty fuel rail pressure sensor, fuel pump issue, wiring issues |
| P0201 | Injector Circuit/Open – Cylinder 1 | Faulty fuel injector, wiring issue |
| P0202 | Injector Circuit/Open – Cylinder 2 | Faulty fuel injector, wiring issue |
| P0203 | Injector Circuit/Open – Cylinder 3 | Faulty fuel injector, wiring issue |
| P0204 | Injector Circuit/Open – Cylinder 4 | Faulty fuel injector, wiring issue |
| P0299 | Turbocharger/Supercharger Underboost | Vacuum leaks, faulty turbocharger, faulty wastegate, boost leaks |
| P0305 | Cylinder 5 Misfire Detected | Faulty ignition coil, spark plug, fuel injector; low compression in cylinder 5 |
| P0306 | Cylinder 6 Misfire Detected | Faulty ignition coil, spark plug, fuel injector; low compression in cylinder 6 |
| P0307 | Cylinder 7 Misfire Detected | Faulty ignition coil, spark plug, fuel injector; low compression in cylinder 7 |
| P0308 | Cylinder 8 Misfire Detected | Faulty ignition coil, spark plug, fuel injector; low compression in cylinder 8 |
| P0401 | Exhaust Gas Recirculation Flow Insufficient Detected | Clogged EGR valve, faulty EGR solenoid, vacuum leaks |
| P0402 | Exhaust Gas Recirculation Flow Excessive Detected | Faulty EGR valve, faulty EGR solenoid, vacuum leaks |
| P0410 | Secondary Air Injection System Malfunction | Faulty air pump, faulty check valve, vacuum leaks |
| P0411 | Secondary Air Injection System Incorrect Flow Detected | Faulty air pump, faulty check valve, vacuum leaks |
| P0441 | Evaporative Emission Control System Incorrect Purge Flow | Faulty purge valve, vacuum leaks, restricted EVAP lines |
| P0442 | Evaporative Emission Control System Leak Detected (Small Leak) | Loose or damaged fuel cap, small leaks in EVAP lines, faulty purge valve |
| P0446 | Evaporative Emission Control System Vent Control Circuit Malfunction | Faulty vent valve, wiring issue |
| P0456 | Evaporative Emission Control System Leak Detected (Very Small Leak) | Loose or damaged fuel cap, very small leaks in EVAP lines, faulty purge valve |
| P0505 | Idle Air Control System Malfunction | Faulty IAC valve, vacuum leaks, throttle body issues |
| P0507 | Idle Air Control System RPM Higher Than Expected | Vacuum leaks, faulty IAC valve, throttle body issues |
| P1101 | Mass Air Flow Sensor Out of Self Test Range | Dirty or faulty MAF sensor, vacuum leaks, improper installation of MAF sensor |
| P1110 | Intake Air Temperature Sensor Intermittent | Faulty IAT sensor, wiring issue |
| P1111 | Intake Air Temperature Sensor Open Circuit | Faulty IAT sensor, wiring issue |
| P1112 | Intake Air Temperature Sensor Short Circuit | Faulty IAT sensor, wiring issue |
| P1120 | Throttle Position Sensor Circuit Malfunction | Faulty TPS, wiring issue |
| P1121 | Throttle Position Sensor Intermittent | Faulty TPS, wiring issue |
| P1125 | Throttle Control Motor Circuit Malfunction | Faulty throttle control motor, wiring issue |
| P1126 | Throttle Actuator Potentiometer Drive Open Circuit | Faulty throttle actuator, wiring issue |
| P1127 | Exhaust Not Warm Enough, Downstream Of Catalytic Converter | Faulty oxygen sensor, exhaust leaks, inefficient catalytic converter |
| P1128 | Closed Loop Fueling Not Achieved – Bank 1 | Vacuum leaks, faulty oxygen sensor, low fuel pressure |
| P1129 | Closed Loop Fueling Not Achieved – Bank 2 | Vacuum leaks, faulty oxygen sensor, low fuel pressure |
| P1130 | HO2S Insufficient Switching – Bank 1 Sensor 1 | Faulty oxygen sensor, exhaust leaks, rich or lean fuel mixture |
| P1131 | Lack Of HO2S Switching – Sensor Indicates Lean – Bank 1 Sensor 1 | Vacuum leaks, faulty oxygen sensor, low fuel pressure |
| P1132 | Lack Of HO2S Switching – Sensor Indicates Rich – Bank 1 Sensor 1 | Faulty oxygen sensor, high fuel pressure, faulty fuel injectors |
| P1133 | HO2S Insufficient Switching – Bank 1 Sensor 2 | Faulty oxygen sensor, exhaust leaks, rich or lean fuel mixture |
| P1134 | Lack Of HO2S Switching – Sensor Indicates Lean – Bank 1 Sensor 2 | Vacuum leaks, faulty oxygen sensor, low fuel pressure |
| P1135 | Lack Of HO2S Switching – Sensor Indicates Rich – Bank 1 Sensor 2 | Faulty oxygen sensor, high fuel pressure, faulty fuel injectors |
| P1136 | Long Term Fuel Trim Additive Air – Bank 1 System Lean | Vacuum leaks, faulty mass air flow sensor, low fuel pressure |
| P1137 | Long Term Fuel Trim Additive Air – Bank 1 System Rich | Faulty fuel injectors, high fuel pressure, faulty oxygen sensor |
| P1138 | Long Term Fuel Trim Additive Air – Bank 2 System Lean | Vacuum leaks, faulty mass air flow sensor, low fuel pressure |
| P1139 | Long Term Fuel Trim Additive Air – Bank 2 System Rich | Faulty fuel injectors, high fuel pressure, faulty oxygen sensor |
| P1151 | Lack Of HO2S Switching – Sensor Indicates Lean – Bank 2 Sensor 1 | Vacuum leaks, faulty oxygen sensor, low fuel pressure |
| P1152 | Lack Of HO2S Switching – Sensor Indicates Rich – Bank 2 Sensor 1 | Faulty fuel injectors, high fuel pressure, faulty oxygen sensor |
| P1153 | HO2S Insufficient Switching – Bank 2 Sensor 1 | Faulty oxygen sensor, exhaust leaks, rich or lean fuel mixture |
| P1154 | Lack Of HO2S Switching – Sensor Indicates Lean – Bank 2 Sensor 2 | Vacuum leaks, faulty oxygen sensor, low fuel pressure |
| P1155 | Lack Of HO2S Switching – Sensor Indicates Rich – Bank 2 Sensor 2 | Faulty fuel injectors, high fuel pressure, faulty oxygen sensor |
| P1157 | Fuel Trim Adaptation Additive Air – Bank 1 System Rich | Faulty fuel injectors, high fuel pressure, faulty oxygen sensor |
| P1158 | Fuel Trim Adaptation Additive Air – Bank 2 System Rich | Faulty fuel injectors, high fuel pressure, faulty oxygen sensor |
| P1161 | HO2S Bank 2 Sensor 2, Incorrect Signal Level During Test | Faulty oxygen sensor, exhaust leaks |
| P1162 | HO2S Bank 1 Sensor 1, Incorrect Signal Level During Test | Faulty oxygen sensor, exhaust leaks |
| P1163 | HO2S Bank 2 Sensor 1, Signal Amplitude Too Low | Faulty oxygen sensor, exhaust leaks |
| P1164 | HO2S Bank 1 Sensor 1, Signal Amplitude Too Low | Faulty oxygen sensor, exhaust leaks |
| P1171 | Lambda Sensor Aging Bank 1 | Faulty oxygen sensor |
| P1172 | Lambda Sensor Aging Bank 2 | Faulty oxygen sensor |
| P1173 | Fuel Trim Malfunction Bank 1 | Faulty fuel injectors, high or low fuel pressure, vacuum leaks |
| P1174 | Fuel Trim Malfunction Bank 2 | Faulty fuel injectors, high or low fuel pressure, vacuum leaks |
| P1176 | O2 Correction Behind Catalyst Bank 1 Limit Attained | Faulty oxygen sensor, exhaust leaks, inefficient catalytic converter |
| P1177 | O2 Correction Behind Catalyst Bank 2 Limit Attained | Faulty oxygen sensor, exhaust leaks, inefficient catalytic converter |
| P1189 | Oil Pressure Switch Circuit Malfunction | Faulty oil pressure switch, wiring issue |
| P1190 | Rail Pressure Monitoring Start Of Injection Control | Faulty fuel pressure sensor, faulty fuel injectors |
| P1191 | Rail Pressure Monitoring Pressure Too Low | Faulty fuel pump, restricted fuel filter, faulty fuel pressure sensor |
| P1192 | Rail Pressure Monitoring Pressure Too High | Faulty fuel pressure regulator, faulty fuel pressure sensor |
| P1193 | Short Circuit Between Injector Outputs | Wiring issue, faulty fuel injectors |
| P1194 | Leakage Diagnosis Pump Open Circuit | Faulty leakage diagnosis pump, wiring issue |
| P1195 | Leakage Diagnosis Pump Short Circuit To Ground | Faulty leakage diagnosis pump, wiring issue |
| P1196 | Leakage Diagnosis Pump Short Circuit To B+ | Faulty leakage diagnosis pump, wiring issue |
| P1197 | Differential Pressure Sensor Before Catalyst, Open Circuit/Short Circuit | Faulty differential pressure sensor, exhaust leaks, wiring issue |
| P1198 | Differential Pressure Sensor After Catalyst, Open Circuit/Short Circuit | Faulty differential pressure sensor, exhaust leaks, wiring issue |
| P1235 | Fuel Pump Control Out Of Range | Faulty fuel pump control module, wiring issue |
| P1236 | Fuel Pump Control Open Circuit | Faulty fuel pump control module, wiring issue |
| P1237 | Fuel Pump Control Short Circuit To Ground | Faulty fuel pump control module, wiring issue |
| P1238 | Fuel Pump Control Short Circuit To B+ | Faulty fuel pump control module, wiring issue |
| P1239 | Fuel Pump Secondary Circuit Malfunction | Wiring issue, faulty fuel pump |
| P1240 | Fuel Pump Secondary Circuit Open | Wiring issue, faulty fuel pump |
| P1241 | Fuel Pump Secondary Circuit Short To Ground | Wiring issue, faulty fuel pump |
| P1242 | Fuel Pump Secondary Circuit Short To B+ | Wiring issue, faulty fuel pump |
| P1250 | Fuel Metering Malfunction | Faulty fuel injectors, faulty fuel pump, wiring issue |
| P1251 | Fuel Quantity Regulator Lower Limit Exceeded | Faulty fuel quantity regulator, faulty fuel pump, wiring issue |
| P1252 | Fuel Quantity Regulator Upper Limit Exceeded | Faulty fuel quantity regulator, faulty fuel pump, wiring issue |
| P1253 | Fuel Metering Solenoid Valve Control Circuit Malfunction | Faulty fuel metering solenoid valve, wiring issue |
| P1254 | Fuel Metering Solenoid Valve Control Circuit Open | Faulty fuel metering solenoid valve, wiring issue |
| P1255 | Fuel Metering Solenoid Valve Control Circuit Short To Ground | Faulty fuel metering solenoid valve, wiring issue |
| P1256 | Fuel Metering Solenoid Valve Control Circuit Short To B+ | Faulty fuel metering solenoid valve, wiring issue |
| P1336 | Crankshaft/Camshaft Position Sensor Adaptive Fuel Trim Range Exceeded | Faulty crankshaft or camshaft position sensors, timing chain issues, fuel delivery problems |
| P1337 | Crankshaft/Camshaft Position Sensor Adaptive Fuel Trim Not Learned | Faulty crankshaft or camshaft position sensors, incomplete learning process, timing chain issues |
| P1338 | Crankshaft/Camshaft Position Sensor Adaptive Fuel Trim Limit Reached | Faulty crankshaft or camshaft position sensors, timing chain issues, fuel delivery problems |
| P1339 | Crankshaft/Camshaft Position Sensor Adaptive Fuel Trim Invalid | Faulty crankshaft or camshaft position sensors, incorrect installation, wiring issues |
| P1400 | Exhaust Gas Recirculation Valve Open During Start Up | Faulty EGR valve, vacuum leaks |
| P1401 | Exhaust Gas Recirculation Valve Closed During Start Up | Faulty EGR valve, carbon buildup, vacuum leaks |
| P1402 | Exhaust Gas Recirculation Valve Stuck Closed | Faulty EGR valve, carbon buildup, vacuum leaks |
| P1403 | Exhaust Gas Recirculation Valve Stuck Open | Faulty EGR valve, vacuum leaks, solenoid malfunction |
| P1404 | Exhaust Gas Recirculation Self Test Failed | Faulty EGR valve, vacuum leaks, wiring issues |
| P1405 | Exhaust Gas Recirculation Valve Position Sensor Circuit Malfunction | Faulty EGR valve position sensor, wiring issue |
| P1406 | Exhaust Gas Recirculation Valve Position Sensor Circuit Open | Faulty EGR valve position sensor, wiring issue |
| P1407 | Exhaust Gas Recirculation Valve Position Sensor Circuit Short To Ground | Faulty EGR valve position sensor, wiring issue |
| P1408 | Exhaust Gas Recirculation Valve Position Sensor Circuit Short To B+ | Faulty EGR valve position sensor, wiring issue |
| P1409 | EGR Vacuum System Leak | Vacuum leaks, faulty EGR solenoid, damaged vacuum lines |
| P1410 | Secondary Air Injection System Valve Stuck Open | Faulty air pump, faulty check valve, vacuum leaks |
| P1411 | Secondary Air Injection System Valve Stuck Closed | Faulty air pump, faulty check valve, vacuum leaks |
| P1412 | Secondary Air Injection System Valve Control Circuit Malfunction | Faulty air pump control module, wiring issue |
| P1413 | Secondary Air Injection System Valve Control Circuit Open | Faulty air pump control module, wiring issue |
| P1414 | Secondary Air Injection System Valve Control Circuit Short To Ground | Faulty air pump control module, wiring issue |
| P1415 | Secondary Air Injection System Valve Control Circuit Short To B+ | Faulty air pump control module, wiring issue |
| P1416 | Secondary Air Injection System Bank 1 Malfunction | Faulty air pump, faulty check valve, vacuum leaks |
| P1417 | Secondary Air Injection System Bank 2 Malfunction | Faulty air pump, faulty check valve, vacuum leaks |
| P1418 | Secondary Air Injection System Relay Malfunction | Faulty relay, wiring issue |
| P1419 | Secondary Air Injection System Relay Open Circuit | Faulty relay, wiring issue |
| P1420 | Secondary Air Injection System Relay Short To Ground | Faulty relay, wiring issue |
| P1421 | Secondary Air Injection System Relay Short To B+ | Faulty relay, wiring issue |
| P1422 | Catalyst Over Temperature Protection Bank 1 | Overheated catalytic converter, rich fuel mixture, misfires |
| P1423 | Catalyst Over Temperature Protection Bank 2 | Overheated catalytic converter, rich fuel mixture, misfires |
| P1424 | Purge Volume Control Valve Circuit Malfunction | Faulty purge volume control valve, wiring issue |
| P1425 | Purge Volume Control Valve Circuit Open | Faulty purge volume control valve, wiring issue |
| P1426 | Purge Volume Control Valve Circuit Short To Ground | Faulty purge volume control valve, wiring issue |
| P1427 | Purge Volume Control Valve Circuit Short To B+ | Faulty purge volume control valve, wiring issue |
| P1428 | Fuel Tank Temperature Sensor Circuit Malfunction | Faulty fuel tank temperature sensor, wiring issue |
| P1429 | Fuel Tank Temperature Sensor Circuit Open | Faulty fuel tank temperature sensor, wiring issue |
| P1430 | Fuel Tank Temperature Sensor Circuit Short To Ground | Faulty fuel tank temperature sensor, wiring issue |
| P1431 | Fuel Tank Temperature Sensor Circuit Short To B+ | Faulty fuel tank temperature sensor, wiring issue |
| P1432 | Leak Detection Pump Heater Circuit Malfunction | Faulty leak detection pump, wiring issue |
| P1433 | Leak Detection Pump Heater Circuit Open | Faulty leak detection pump, wiring issue |
| P1434 | Leak Detection Pump Heater Circuit Short To Ground | Faulty leak detection pump, wiring issue |
| P1435 | Leak Detection Pump Heater Circuit Short To B+ | Faulty leak detection pump, wiring issue |
| P1436 | Fuel Level Sensor Circuit Malfunction | Faulty fuel level sensor, wiring issue |
| P1437 | Fuel Level Sensor Circuit Open | Faulty fuel level sensor, wiring issue |
| P1438 | Fuel Level Sensor Circuit Short To Ground | Faulty fuel level sensor, wiring issue |
| P1439 | Fuel Level Sensor Circuit Short To B+ | Faulty fuel level sensor, wiring issue |
| P1440 | Evaporative Emission Control System Very Small Leak | Loose or damaged fuel cap, small leaks in EVAP lines, faulty purge valve |
| P1441 | Evaporative Emission Control System Purge Flow Fault | Faulty purge valve, vacuum leaks, restricted EVAP lines |
| P1442 | Evaporative Emission Control System Purge Flow Sensor Circuit Malfunction | Faulty purge flow sensor, wiring issue |
| P1443 | Evaporative Emission Control System Purge Flow Sensor Circuit Open | Faulty purge flow sensor, wiring issue |
| P1444 | Evaporative Emission Control System Purge Flow Sensor Circuit Short To Ground | Faulty purge flow sensor, wiring issue |
| P1445 | Evaporative Emission Control System Purge Flow Sensor Circuit Short To B+ | Faulty purge flow sensor, wiring issue |
| P1446 | Evaporative Emission Control System Vent Control Circuit Malfunction | Faulty vent valve, wiring issue |
| P1447 | Evaporative Emission Control System Vent Control Circuit Open | Faulty vent valve, wiring issue |
| P1448 | Evaporative Emission Control System Vent Control Circuit Short To Ground | Faulty vent valve, wiring issue |
| P1449 | Evaporative Emission Control System Vent Control Circuit Short To B+ | Faulty vent valve, wiring issue |
| P1450 | Unable to Bleed Up Fuel Tank Vacuum | Blocked EVAP lines, faulty purge valve, faulty vent valve |
| P1451 | Fuel Tank Cap Circuit Malfunction | Faulty fuel cap sensor, wiring issue |
| P1452 | Fuel Tank Cap Circuit Open | Faulty fuel cap sensor, wiring issue |
| P1453 | Fuel Tank Cap Circuit Short To Ground | Faulty fuel cap sensor, wiring issue |
| P1454 | Fuel Tank Cap Circuit Short To B+ | Faulty fuel cap sensor, wiring issue |
| P1455 | Fuel Tank Pressure Sensor Circuit Malfunction | Faulty fuel tank pressure sensor, wiring issue |
| P1456 | Fuel Tank Pressure Sensor Circuit Open | Faulty fuel tank pressure sensor, wiring issue |
| P1457 | Fuel Tank Pressure Sensor Circuit Short To Ground | Faulty fuel tank pressure sensor, wiring issue |
| P1458 | Fuel Tank Pressure Sensor Circuit Short To B |
