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.
2006 Ford E150 Van Stalls at Stops with P0104 Code – TPS Failure Causes MAF-Related Diagnostic Error
Hi, My neighbor's 2006 Ford E15
2006 Ford E150 Van | P01041999 Ford Explorer P0133 Code: Causes, Solutions & Fix for Lean Condition
My 1999 Ford Explorer is throwing up trouble codes P0133, P0171, and P0174 after replacing the left-side oxygen sensor (O2 sensor) in the exhaust system. The right O2 sensor app...
1999 Ford Explorer | P01332007 Ford F150 5.4L Engine Miss Fire: P0301 & P0316 Codes, Cold Start Issues
Hi everyone, I recently purchased a 2007 Ford F15-0 5.4L V8 4x4 truck three weeks ago. It ran smoothly during the first week of ownership. However, starting about a week after t...
2007 F150 | P03002004 Ford Ranger V6 3.0L Misfire Codes P0300, P0301, P0303, P0316 - Troubleshooting Guide
Hi everyone, My 2004 Ford Ranger with a 3.0L V6 engine has been running roughly over the past few days. It occasionally misfires, sometimes runs smoothly, and at other times fe...
2004 Ford Ranger | P0300P0236 and P0116 Fault Codes on 2007 Dodge 2500 Diesel: Power Loss and Coolant Sensor Issues
2007 Dodge 2500 4x4 Diesel (5.9L, Extended Cab, Automatic), 101,000 miles: Recently purchased this vehicle and today it triggered two diagnostic trouble codes—P0236 (Turbo Charg...
2007 Dodge 2500 Diesel | P01161998 Chrysler Cirrus 2.5L V6 - P0700 and P0733/P0734 Codes: Gear Shift Issue & High RPM After Third Gear
While driving from a stoplight, I noticed the RPM suddenly jumped to over 3000 when transitioning into third gear. By the time I arrived home, the Check Engine light had activat...
98 Chrysler Cirrus | P07002001 Ford Focus SOHC Vehicle with P0136, P0171, and P0000 OBD2 Diagnostic Codes - Solutions and Fixes
I'm experiencing persistent Check Engine Light (CEL) errors on my 2001 Ford Focus with SOHC engine configuration, specifically receiving diagnostic trouble codes P0136, P0171, a...
2001 Ford Focus | P0000Mercedes W210 E280 P0135 and P0150 Fault Codes - Bosch ECU Diagnosis and Solutions
Hi everyone, I'm experiencing a recurring issue with my Mercedes W210 E280. The vehicle is showing pending diagnostic trouble codes (DTCs): P0135 and P0150, along with a logged ...
mercedes w210 e280 | P01352001 Ford Explorer Sporttrac P0141 O2 Sensor Code Reappears After Replacement
I replaced the oxygen sensor on my 2001 Ford Explorer Sporttrac, cleared the P0141 code, but it returned shortly after. What could be causing this issue? Any insights into poten...
2001 Ford Explorer Sporttrac | P0141P0128 Fault in 2005 Chevrolet TrailBlazer: Engine Not Warming Up and Transmission Fluid Burning
Hi everyone, I'm experiencing a persistent issue with my 2005 Chevrolet TrailBlazer. The engine is showing fault code P0128 — 'Engine Coolant Temperature Below Thermostat Regula...
TrailBlazer | P01282007 Dodge Ram 2500 6.7L Cummins P0505 - Where Is the IAC Valve Located?
I recently received a diagnostic code P0505 on my 2007 Dodge Ram 2500 with the 6.7L Cummins engine. After reading troubleshooting guides, I'm looking for clarification on the ex...
2007.5 Dodge Ram 2500 | P05051997 Toyota Corolla P0125 Code: Causes, Fixes & O2 Sensor Diagnosis
I'm experiencing a recurring P0125 fault code on my 1997 Toyota Corolla. I've already replaced the thermostat and coolant temperature sensor, and topped up the coolant level, bu...
1997 Corolla | P0125OBD2 Code P0449 for 2010 Chevrolet Impala - Solutions After Replacing Vent Solenoid and Purge Canister
I recently encountered OBD2 diagnostic code P0449 on my 2010 Chevrolet Impala. I have already replaced the vent solenoid and purge canister, and performed a thorough vacuum leak...
chevy impala 2010 | P04492000 Honda Odyssey LX - PO401 Code: Exhaust Gas Recirculation Flow Insufficient
I recently encountered a persistent PO401 diagnostic code on my 2000 Honda Odyssey LX, indicating insufficient exhaust gas recirculation (EGR) flow. I've already replaced the EG...
2000 honda odyssey LX | P04011998 Ford F150 P1537, P0401, and P0176 Trouble Codes - Solutions and Fixes
I own a 1998 Ford F150 with a 4.2L V6 engine. I'm consistently receiving diagnostic trouble codes P1537, P0401, and P0174. I've already replaced the EGR valve, but the issue per...
1998 f150 | P01742000 GMC Suburban 1500 P1860 Code: Steady Service Engine Light After Clearing Codes
I own a 2000 GMC Suburban 4WD with a 5.3L V8 engine and a 4L60E transmission. The truck drives smoothly and achieves around 14 MPG in town, but the service engine light comes on...
2000 Suburban 1500 | P18602008 Pontiac Grand Prix P0420 Code: Causes, Diagnostics & Aftermarket Cat Replacement Guide
Hi everyone, I own a 2008 Pontiac Grand Prix (base model) that has been throwing up the P0420 diagnostic code since December 2013. Below is a timeline of events and troubleshoo...
2008 Pontiac Grand Prix | P04202002 Ford Explorer P0300, P0101, P0102, P0103, P0174, P0442, P1131 - Rough Idle, Poor Power, Hesitation at 2500 RPM in Park
My 2002 Ford Explorer is experiencing multiple diagnostic trouble codes: P0300 (random misfire), P0101/P0102/P0103 (mass airflow and oxygen sensor issues), P0174 (rich air-fuel ...
Ford Explorer | P01012007 Ford F250 5.4L V8 P0505 Fault: Rough Idle and Won't Stay Running After Throttle Release
I own a 2007 Ford F250 with the 5.4L V8 engine. The vehicle is experiencing a rough idle and fails to maintain running after releasing the throttle. A diagnostic check has revea...
5.4 F250 | P0505Practical 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.