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.
2000 Jeep Cherokee 4.7L V8: P0601, P0320, P0108 Codes - Engine Stalls, Black Smoke, Gas Smell & Check Engine Light
I own a 2000 Jeep Cherokee with a 4.7L V8 engine. About a year ago, while driving on the freeway, I heard a loud pop from the engine as I approached my destination. Shortly afte...
Jeep Cherokee 2000 | P01082001 Dodge Durango P0455 and P0456 - EVAP System Leak Diagnosis and Solutions
I have a 2001 Dodge Durango with a 4.7L engine. The check engine light is on, and I've retrieved OBD II codes P0455 and P0456, which indicate small and large evaporative emissio...
2001 dodge durango | P04551999 Ford Ranger P1151 O2 Sensor Issue: Fixing Lean Condition After Replacing Both Upstream and Downstream Sensors
I recently purchased a used 1999 Ford Ranger with a 3.0L V6 engine and 4WD. The 'Check Engine' light has been on for some time, and after replacing both the upstream and downstr...
1999 Ranger | P11512003 Pontiac Grand Am P0135 O2 Sensor Heater Bank 1 Sensor 1 Fault Diagnosis and Fix
2003 Pontiac Grand Am GT 3.4L V6 The Service Engine Soon (SES) light has come on, and after scanning the vehicle, I received a P0135 diagnostic code: "Oxygen Sensor Heater Circu...
2003 Pontiac Grand Am | P01352007 Nissan Primastar 2.0L 115hp P0201 Missfire: Low Injector Voltage Diagnosis
Hello, I own a 2007 Nissan Primastar with a 2.0L engine and 115 horsepower. Recently, the vehicle has started experiencing a missfire and significant loss of power, accompanied ...
2007 nissan primastar | P02011999 Ford Fleetwood V10 Engine Fault Codes P0351, P0352, P0353, P0354, P0355 with Only 21,000 Miles
I own a 1999 Ford Fleetwood equipped with a Ford V10 engine. The vehicle has only 21,000 miles and runs smoothly, but exhibits significantly reduced power. The onboard diagnosti...
1999 Fleetwood | P03512002 VW Jetta 1.8 Turbo P0118 Code: Fix After Replacing ECT Sensor and Ignition Coils
Hi everyone, I'm having trouble with my 2002 VW Jetta 1.8 Turbo that's showing a persistent P0118 engine code along with occasional misfires. I've already replaced the ignition ...
2002 vw jetta 1.8 turbo | P0118P0498 Diagnostic Code on 2007 Honda Fit - Evaporative Emission System Vent Control Circuit Low
I recently received diagnostic code P0498 on my 2007 Honda Fit, which indicates an issue with the Evaporative Emission System Vent Control Circuit — specifically a low signal. T...
2007 Honda Fit | P04981999 Nissan Sentra P0138 and P0325 Error Codes: How to Diagnose Without Replacing O2 or Knock Sensor
Hello! Just a day or two ago, the 'Service Engine Soon' light came on in my 1999 Nissan Sentra 2.0L engine. After taking it to a mechanic, I was given error codes P0138 and P032
1999 Nissan Sentra | P0138Chrysler 2007 Pacifica P0203 and P0660 Fault Diagnosis - Cylinder 3 Injector and Intake Manifold Tuning Valve Issues
I recently encountered two diagnostic trouble codes on my 2007 Chrysler Pacifica: P0203 (Injector Circuit Open - Cylinder #3) and P0660 (Intake Manifold Tuning Valve Circuit Ope...
Chrysler Pacifica | P02032003 VW Jetta Wolfsburg 1.8L - P0343 and P0300 Codes: Vehicle Won't Start, Cam Sensor Diagnosis
I have a 2003 VW Jetta Wolfs- burg 1.8L with persistent P0343 and previously detected P0300 codes. The P0300 has not returned, but the P0343 code remains active and is now causi...
03 vw jetta wolfsburg 1.8 | P03432003 Honda Pilot Downstream O2 Sensor Flatline at 2500 RPM - No Fault Codes, Normal Fuel Trim
I'm monitoring both the upstream and downstream oxygen sensors in my 2003 Honda Pilot using Autotap scanning software. The upstream sensor behaves as expected—rapidly switching ...
Unknown | P0171P0688 Diagnostic and Fix for 2011 Dodge Ram 1500 4X4 with 5.7 Hemi Engine
I own a 2011 Dodge Ram 1500 4x4 equipped with a 5.7L Hemi engine. While I was refueling on a slight incline, I left the truck in 4WD and turned it off. After switching back to 2...
2011 Dodge Ram 1500 | P0688Error Code P0129 in 2004 Dodge Stratus 2.7L V6: Causes and Fixes for Low Barometric Pressure & Oil Pressure Fluctuations
What causes a low barometric pressure error (P0129) in a 2004 Dodge Stratus with a 2.7L V6 engine? I've owned this vehicle for 10 years and have never experienced issues before ...
Dodge Stratus | P01292011 Chevrolet Cruze 1.4L Turbo - P0496 Code: EVAP System Flow During Non-Purge Diagnosis
The check engine light is on and the diagnostic code displayed is P0496, indicating an issue with the Evaporative Emission (EVAP) system flow during non-purge conditions. I rece...
Chevy Cruze | P04962004 Nissan Sentra P0335 Fault: How to Replace Crankshaft Position Sensor Location and Repair Guide
Hello! I'm looking for clear instructions on how to replace the crankshaft position sensor in my 2004 Nissan Sentra 1.8L engine. The vehicle is displaying a P0335 diagnostic tro...
2004 nissan sentra | P0335Practical 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.