Traditional gasoline car fault
Search fault code and browse forum case posts.
This page is designed for quick diagnosis on gasoline vehicles by combining code lookup with real discussion cases. Enter a fault code to filter related topics, then compare symptom context such as cold start behavior, acceleration load, fuel-trim deviation, ignition misfire pattern, and recent maintenance history. Many codes can be triggered by shared root causes, so use cross-checks from multiple posts before replacing sensors, coils, injectors, or catalytic components.
2012 VW Jetta SE 2.5L P0011 Code: Camshaft Position Actuator A - Bank 1 Timing Over Advanced
I purchased a brand new 2012 VW Jetta SE with a 2.5L engine. After two years of ownership, I began experiencing intermittent stalling at idle. The vehicle would stall 4 to 5 tim...
2012 VW Jetta SE 2.5L | P00112004 Lincoln LS 3.0 V6 - P0301, P0316, P0663: Misfire and Intake Manifold Valve Issues
I've reset the engine codes P0301, P0316, and P0663 on my 2004 Lincoln LS with a 3.0L V6 engine, but they keep returning. The car doesn't drive poorly overall, but I notice inte...
2004 Lincoln LS 3.0 v6 | P0301Honda Civic 1995 CEL Code: How to Interpret Two Long and Four Short Flashes (Code 24)
I own a 1995 Honda Civic with the Check Engine Light (CEL) illuminated. When I observe the flashing pattern, it shows two long flashes followed by four short ones — which corres...
Honda Civic | P0171Mazda MPV 6Cyl 2000 Model - P0106, P0126, P1528 Fault Codes Diagnosis
I have diagnosed my 2000 Mazda MPV 6-cylinder van and am seeing the following OBD-II fault codes: P0106, P0126, and P1528. I would like to understand what these codes mean and h...
mazda mpv | P0106P0742 & P1811 Fault Codes in 1999 Buick Regal V6 3.8L: Causes and Fixes
Hello, I recently encountered a recurring transmission issue with my 1999 Buick Regal V6 3.8L after a transmission rebuild two years ago. The car initially ran smoothly but bega...
1999 Buick Regal | P07422001 Audi O2 Sensor Voltage Issue: All Four Sensors Show No Signal
I own a 2001 Audi and am experiencing a problem where all four oxygen (O2) sensors are showing no voltage reading. I've already checked the fuses, which are fine, and there's no...
2001 Audi | P2177What Does P1494 Mean for 1998 Dodge Durango? Leak Detection Pump Issue Explained
The fault code P1494 in a 1998 Dodge Durango indicates a 'leak detection pump (LDP) switch or mechanical fault'. This means the vehicle's system is detecting either a leak in th...
Dodge Durango | P14942001 Ford E150 6-Cylinder Misfire: P0301 and P0303 Codes After Alternator Replacement
My 2001 Ford E150 with a 6-cylinder engine is running very roughly. The vehicle has triggered OBD-II diagnostic codes P0301 and P0303. It previously had an alternator replaced b...
2001 Ford E150 | P0301Mercedes Benz ML320 Fault Codes P0442 and P0410 - Car Won't Start, Dashboard Lights Only On for Airbags and SRS
I own a Mercedes-Benz ML320 and am experiencing a serious issue. After parking at the store, when I returned, the vehicle would not start. The dashboard lights remain on except ...
Mercedes Benz ML320 | P04102003 Chevrolet Silverado P0307 Misfire with Catalyst and EVAP Codes - How to Fix for Smog Pass?
I've taken my 2003 Chevrolet Silverado (4.8L Vortec engine) to three different repair shops, and despite two diagnoses, I still can't resolve the P0307 misfire code along with p...
2003 chevrolet silverado | P0307P0136 Diagnostic Meaning for 1999 Ford Expedition with 5.4L Engine
I'm seeking clarification on what the OBD-II diagnostic code P0136 means specifically in a 1999 Ford Expedition equipped with a 5.4L V8 engine. This code is related to the oxyge...
1999 Expedition | P0136What Does OBD2 Code P0744 Mean on a 2006 Nissan Maxima?
My 2006 Nissan Maxima is experiencing power loss and hard shifting, and I've recently received the OBD2 diagnostic code P0744. What does this code specifically indicate, and how...
2006 Maxima | P07442004 Santa Fe P0052 O2 Sensor Heater Control Circuit Fault - Bank 2, Sensor 1
Diagnostic Code P0052: Oxygen Sensor (HO2S) Heater Control Circuit Failure - Detected in Bank 2, Sensor 1 of a 2004 Santa Fe. This code indicates an issue with the heater circui...
santa fe 2004 | P0052Jeep Grand Cherokee WK 2005 P0404, P0031, P0036, P0051, P0057 - Troubleshooting and Solutions
Good evening, I'm experiencing issues with my 2005 Jeep Grand Cherokee WK. Occasionally, especially when the air conditioning is on, the vehicle seems to lose power — the engine...
Jeep Grand Cherokee WK | P0031P0448 Diagnostic Issue on 2011 Nissan Frontier - Voltage Test Results
I've measured the voltage supplied to the vent control vent valve and recorded only 10.85 volts. Is this sufficient for the vent valve to operate correctly? The vehicle is a 201...
2011 Nissan Frontier | P04482004 Jeep Grand Cherokee LTD P0307 Misfire Diagnosis: Spark, Fuel, or Internal Engine Issue?
I own a 2004 Jeep Grand Cherokee LTD with approximately 177,000 miles. It has been reliable until recently. While driving around town, the engine stalled and when I restarted it...
2004 Jeep Grand Cherokee LTD | P0307P0446 OBD2 Code in 2004 Buick Lesabre 3.8L - How to Diagnose EVAP Vent Valve Issue
2004 Buick Lesabre 3.8L with 100,000 miles. The vehicle runs smoothly, but the fuel gauge is not working, making it difficult to track fuel mileage. I have already replaced the ...
2004 Buick Lesabre | P044699 Chevrolet Silverado 5.3L Engine P0171/P0174/P0137/P0157 Diagnosis: Lean Condition, Fuel Pressure Issues, and EGR Leak Fix
I recently purchased a 1999 Chevrolet Silverado with a 5.3L V8 engine that had been stored for an extended period. Within days of ownership, the truck began throwing multiple OB...
5.3 silverado | P0137Practical workflow for fault-code troubleshooting
Start by confirming battery voltage and reading freeze-frame data, then inspect wiring and connectors before replacing parts. If the code returns after clearing, record the exact driving or idling condition when it reappears. Prefer case threads with complete repair feedback, because confirmed outcomes provide stronger guidance than one-time symptom descriptions. Following a step-by-step workflow reduces repeated repairs and lowers total diagnosis time.