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.
1999 Mercury Sable P0401 and P0113 Codes: Intake Air Temp Sensor Issue and Transmission Gear Problems
The check engine light activated on my 1999 Mercury Sable, and an OBD II scan initially revealed a P0401 code. I inspected and cleaned the EGR valve in hopes of resolving the is...
1999 Mercury Sable | P01132004 Honda Civic P1382 Diagnostic Code Meaning Explained
What does OBD-II fault code P1382 mean for a 2004 Epica LS 2.5L? This code indicates a problem with the fuel pump control circuit, specifically related to the fuel pump relay or...
2004 Epica | P13822009 Ford Focus P0628 and P1260 Error Codes: Intermittent Engine Death & Fuel Pump Issues
I own a 2009 Ford Focus Titanium and am experiencing severe intermittent engine failure. The car will suddenly die while driving, often at traffic lights, with no power to the e...
2009 Ford Focus | P06282000 Chevy S10 P0122 U1096 U1000 U1064 C0222 C0266 C0237 B0090 - Check Engine Light On After 6-Month Storage
I recently purchased a 2000 Chevy S10 2WD with a 2.2L engine, and it has been running well since I acquired it about a week ago. However, a few days ago, when I tried to drive i...
2000 Chevy S10 | B00902004 Chevrolet SSR with P0100, P0171-P0175, P0300, P0420 and U1041: OBD-II Codes After Fuel Changes and Tuner Issues
I own a 2004 Chevrolet SSR with 129,000 miles. Since winter 2014, I've experienced recurring engine issues that started when attempting to start the vehicle after sitting in sub...
2004 SSR | P01001998 Toyota Camry 2.5L Misfire: P0302, P0304, and P0306 Codes Only - Front Cylinder Issues
My 1998 2.5L engine is showing only P0302, P0304, and P0306 diagnostic trouble codes, indicating misfires in the front cylinders. The issue appears to be isolated to cylinder 2,...
1998 2.5 | P0302VW Polo 2004 1.4 Engine Dies Twice with P0106 MAP Sensor Fault Code
Hi, I own a 2004 VW Polo 1.4 and have been receiving the P0106 diagnostic code related to the Manifold Absolute Pressure (MAP) sensor. The car has been running fine for some tim...
vw polo 2004 1.4 | P01062005 Ford F150 Misfire and Fuel Trim Codes P0300, P0305, P0306, P0316, P0012, P0170, P0171, P0174 - Diagnosis and Fixes
A few days ago my 2005 Ford F150 displayed multiple OBD-II diagnostic codes: P0300, P0305, P0306, P0316, P0012, P0170, P0171, and P0174. I recently replaced the spark plugs, fue...
2005 F150 | P0012P0131 O2 Sensor Code in 1999 Chevy Tahoe 4x4 - Diagnosis and Fixes
I own a 1999 Chevrolet Tahoe 4x4 with a 5.7L engine, and I've been experiencing intermittent issues. Initially, I had a misfire that two master mechanics at Pep Boys couldn't di...
1999 Chevy Tahoe | P01312004 Dodge Durango P0068 Code: TPS Voltage Issue After Replacement
I'm experiencing a persistent P0068 code on my 2004 Dodge Durango. Previously, the vehicle also showed a P0123 code, which I resolved by cleaning what appeared to be debris from...
2004 Durango | P00682006 Grand Cherokee Laredo ABS Fault: U0121 OBD2 Code Explained
My 2006 Grand Cherokee Laredo has a Check Engine light, ABS light, and parking light illuminated. The diagnostic trouble code displayed is U0121. This indicates a communication ...
2006 GRAND CHEROKEE | U01211998 Blazer Random Misfire P0300 - Multiple O2 Sensor & Lean Codes, Fuel Pressure Diagnosis Needed
I have a 1998 Chevrolet Blazer experiencing random misfiring, especially when driving uphill—noticeably losing power. The vehicle has triggered a check engine light with code P0...
98 Blazer | P03002000 Tahoe LT ABS Fault Codes C0221, C0222, C0223, C0265, C0267, C0287, C0298 - Causes and Fixes
I own a 2000 Chevrolet Tahoe LT with a 5.3L V8 engine and 2WD, equipped with traction control. The ABS light has illuminated and remains on continuously. After taking the vehicl...
2000 Tahoe | C0221P0080 Fault in 2004 Chevrolet Tahoe: Diagnosis and DIY Repair Guide
I own a 2004 Chevrolet Tahoe and recently completed an intake gasket replacement. After the repair, my vehicle is displaying a P0080 diagnostic code. I'm concerned about a possi...
CHEVY TAHOE | P0080P2509 Fault Code in 2007 Dodge Ram 2500: Causes and DIY Solutions
I own a 2007 Dodge Ram 2500. A few months ago, I replaced the battery after the engine light remained on while driving, despite all systems functioning normally. The truck event...
2007 Dodge Ram 2500 | P25092004 Ram 2500 P0499 Fault Code: Diagnosing Purge Solenoid and LDP Issues
Hi everyone, I'm looking for help diagnosing a persistent P0499 error code on my 2004 Ram 2500. The engine light is on, and I've already replaced both the purge solenoid and th...
2004 Ram 2500 | P0499Ford Taurus 2003 P1400 and P0457 Diagnostic Issues - What Do These Error Codes Mean?
Hello everyone, I'm having trouble with my 2003 Ford Taurus SE 3.0L engine. I've recently received diagnostic codes P1400 and P0459, and I'd like to understand what they mean an...
ford taurus 2003 | P0457Practical 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.