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.
1993 GMC C1500 Suburban Running Rich - OBD1 Code 32 (EGR Issue)
My 1993 GMC C1500 Suburban with a 5.7L V8 and TBI fuel injection system is running rich. The vehicle shows OBD1 diagnostic code 32, which corresponds to the EGR (Exhaust Gas Rec...
93 GMC C1500 Suburban | C1500Jeep WJ 4.7L V8 P0340 and P1391 Fault: Cam & Crank Sensor Issues After Replacement
Hi, I'm experiencing persistent fault codes P0340 and P1391 on my Jeep WJ with a 4.7L V8 engine. The vehicle pulls these codes under load—especially during towing or climbing s...
Jeep WJ | P03401991 Buick Century Engine Dies Suddenly with Trouble Code 62 and 72: Transaxle Gear Switch Issue
My 1991 Buick Century is running fine while driving on the highway, but suddenly died while in motion. The vehicle now shows no spark and has trouble code 62 (Transaxle Gear Pos...
1991 Buick Century | P06202005 Pontiac Grand Prix P0300 Code: Rough Idle, No Improvement After Spark Plug and Coil Replacement
I filled my 2005 Pontiac Grand Prix fuel tank and drove approximately 7 miles before parking overnight. The next day, the car started with a very rough idle and the check engine...
2005 pontiac grand prix | P03002000 Jeep Grand Cherokee 4.7L Engine Misfire: P0201, P0202, P0301, P030 Troubleshooting Guide
I'm experiencing persistent engine misfire codes P0201, P0202, P0301, and P0302 on my 2000 Jeep Grand Cherokee with a 4.7L V8 engine. The issues appear intermittent and seem to ...
2000 JEEP GRAND CHEROKEE | P02012008 Hyundai Elantra P2096 Error Code: What It Means and How to Fix It
My 2008 Hyundai Elantra is showing a trouble code P2096, which stands for 'Post Catalyst Fuel Trim System Too Lean Bank 1'. This code indicates that the engine's fuel mixture in...
2008 Hyundai Elantra | P20962007 Dodge Durango 5.7 Hemi P0335 Crankshaft Position Sensor: Diagnosis and Fix Guide
I own a 2007 Dodge Durango with the 5.7L Hemi engine. While driving, the truck suddenly acted erratically—displaying a red lightning bolt warning symbol—and then shut down compl...
2007 Dodge Durango 5.7 Hemi | P03352001 Pontiac Grand Am P0303 P0137 P0420 Diagnosis and Repair Guide
Hi everyone, I'm a new user here and am looking for help diagnosing issues with my 2001 Pontiac Grand Am. My engine runs roughly and feels unstable during operation. A diagnosti...
2001 Pontiac Grand Am | P01372006 Cadillac CTS P0103 Code Reappears After MAF Replacement - How to Fix?
I own a 2006 Cadillac CTS with a 3.6L engine. The vehicle is displaying a Diagnostic Trouble Code (DTC) P0103: Mass Air Flow (MAF) Circuit High Input. The check engine light is ...
2006 Cadillac CTS | P0103Opel Corsa 1.6L Automatic Transmission Error Codes: U016B, P0000, P0171, P1895 - How to Fix?
Hello! I'm experiencing several error codes on my Opel Corsa 1.6L automatic model: U016B (note: the scanner shows U016B, though some sources suggest this may not be a valid OBD2...
Opel Corsa 1.6 L automatic | P00002007 Chevy HHR P0700 and P0741 Fault Codes: Transmission and Torque Converter Issues
I'm experiencing two diagnostic trouble codes on my 2007 Chevrolet HHR: P0700 (Transmission Control Module) and P0741 (Torque Converter Clutch System - Stuck Off). The vehicle m...
2007 Chevy HHR | P07002002 Chrysler Intrepid 3.5L Frequently Reports P0152, P0141, P0139 After B1 S1 O2 Sensor Replacement
I recently replaced the B1 S1 oxygen sensor in my 2002 Chrysler Intrepid with a Bosch 13399 unit. Since then, the car has started displaying multiple trouble codes: P0152 (B1 S2...
2002 Intrepid | P01392002 Chevy Silverado P0171 and P0174 OBD2 Code: How to Locate and Test Oxygen Sensors for Corrosion and Connection Issues
I need help locating the oxygen (O2) sensors on my 2002 Chevrolet Silverado to check for corrosion or loose connections. I'm currently seeing both P0171 and P0174 diagnostic tro...
2002 Chevy Silverado | P01712007 Dodge Caliber P0218 P0741 P0776: Transmission and Engine Light Issues After Replacement
I have a 2007 Dodge Caliber that recently had the transmission replaced. Since then, the check engine light and transmission oil warning light have come on. The vehicle enters s...
2007 Dodge Caliber | P0218Chrysler Town & Country 2009 P0404 and P0406 Error After EGR Valve Replacement
After replacing the EGR valve, the engine warning light initially disappeared. However, after driving approximately 2,000 km, the vehicle returned with DTCs P0404 (Exhaust Gas R...
EGR valve replaced | P04042004 Jeep Wrangler 4.0L Engine P0351 Multiple Misfires - Diagnosis & Fix Guide
While driving my 2004 Jeep Wrangler 4.0L, the vehicle suddenly lost power, the check engine light began flashing, and it entered limp mode. I managed to drive it to work and use...
2004 Jeep Wrangler 4.0 | P03512007 Dodge Caravan P0404 Error Code: Causes and Reset Procedures After Repair
My 2007 Dodge Caravan recently developed a P040-4 error code after previously having three other trouble codes—305, 420, and 120. I took the vehicle to a mechanic who performed ...
2007 Dodge Caravan | P0404P0400 Error on Toyota Venza B1.6 1.6L 16 Valve Gasoline - Causes and Fixes
I'm experiencing a P0400 diagnostic trouble code on my Toyota Venza 1.6L 16-valve gasoline engine. I've tried clearing the code using an OBD2 scanner, but it returns after a sho...
Vectra B 1.6 16 valve benzina | P04002006 Dodge Magnum P0700 and U0100 Codes: Diagnosis and Fix for Frequent Engine Shutdowns
I own a 2006 Dodge Magnum with a 5.7L RT Hemi engine that is currently displaying both P0700 and U0100 diagnostic trouble codes. The vehicle shuts down approximately 10 times pe...
2006 Dodge Magnum | P0700Practical 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.