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.
2004 Dodge Caravan P0440 and P0456 EVAP Leak: Is Fuel Tank Replacement Really Necessary?
Hi there, I'm new to this forum and have been reading several threads about OBD-II codes, but I haven
2004 Dodge Grand Caravan | P04401997 Ford Probe 4-Cylinder with Codes P0133, P1652, P0400, P1410, and P0171 - Troubleshooting Guide
My daughter's 1997 Ford Probe 4-cylinder vehicle is experiencing intermittent rough idle, stalling, and a lack of power during acceleration. After visiting AutoZone, we retrieve...
1997 Ford Probe | P01332002 Nissan Maxima P0021 Check Engine Light Reappears After Dealer Claims Camshaft Sensor OK
Hi, I own a well-maintained 2002 Nissan Maxima with only 50,000 miles. Recently, the Check Engine Light (CEL) has returned with code P0021 after a visit to the dealer. The deal...
Nissan Maxima | P0021Peugeot 806 OBD2 Fault Codes Explained: P0420, P0201, and P0351-3 Interpretation & Fixes
Hi everyone, I'm looking for reliable guidance on interpreting the OBD2 fault codes appearing on my 2001 Peugeot 80 or 806 (2.0 i, 100 KW, automatic). The current codes are: - ...
Peugeot 806 | P21772007 Chevrolet Impala P0615 Code: Won't Start - DIY Diagnosis Help Needed
I have a 2007 Chevrolet Impala with a 3.5L engine (8th generation, VIN K). The vehicle is showing fault code P0615 and will not start. I've ruled out the starter, relay, fuse, o...
impala | P0615P0340 Fault Diagnosis and Repair for 2005 Chrysler Sebring
My 2005 Chrysler Sebring is experiencing severe hesitation and chokes during acceleration, which is linked to the P0340 diagnostic trouble code. I'm looking for clear guidance o...
2005 Chrysler Sebring | P03401998 Nissan Quest GXE P0325 Fault: Spark Plug Lead Arcing Causing Engine Misfire
A 1998 Nissan Quest GXE owner reported persistent engine roughness and repeated appearance of fault code P0325, indicating a knock sensor issue. After diagnostic testing, the ro...
1998 Nissan Quest GXE | P03251999 Jeep Wrangler P0123 Code: TPS Voltage Issue and Wiring Short Diagnosis
I'm currently troubleshooting a 1999 Jeep Wrangler with the 4.0L 6-cylinder engine that has triggered a P0123 trouble code indicating a throttle position sensor (TPS) voltage is...
1999 jeep wrangler | P0123P0340 Fault on 2005 Pontiac Sunfire: No Cam Position Sensor? Engine Replacement Needed?
I'm back with a follow-up on my 2005 Pontiac Sunfire. A mechanic recently performed a timing chain re-alignment during a teardown, as the marks were misaligned when the timing c...
2005 Pontiac Sunfire | P0340P0341 and P0652 Fault Codes on 2003 Ram 3500 5.9L - After Unleaded Fuel Contamination
Vehicle: 2003 Dodge Ram 3500 5.9L V8 Fault Codes: P0341, P0652 Symptoms: Occasional coughing, stalling, and rough idle; some driving conditions result in smooth operation. Init...
03 ram 5.9l | P03412001 Silverado 1500HD P0161 and P0300 OBD2 Codes: Causes and Solutions
I own a 2001 Chevrolet Silverado 1500HD with a 6.0L engine. While driving home from work today, the check engine light activated. The vehicle is displaying two diagnostic troubl...
Silverado | P01612005 Pontiac Sunfire P0106 and P0300 Fault Code: MAP Sensor Location and Spark Plug Gap Guide
I own a 2005 Pontiac Sunfire with a 2.2L engine and manual transmission. I'm currently experiencing fault codes P0106 (Manifold Absolute Pressure/BARO Sensor Circuit Range/Perfo...
pontiac sunfire | P01061998 Dodge 5.9L Engine Surges and Hesitation with P1391 Code - Cam Position Sensor Diagnosis
A friend's 1998 Dodge 5.9L pickup, with over 200,000 miles, is experiencing recurring driveability issues including idle surging, hesitation during acceleration, and occasional ...
1998 dodge 5.9 | P1391Practical 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.