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.
1998 Mercury Mystique 2.5L - P1151 O2 Sensor Code Causes Cold Start Flooding and Recurring Fault
My 1998 Mercury Mystique 2.5L is exhibiting a persistent P1151 fault code, which I believe relates to the Bank 2 (driver's side) upstream oxygen sensor. The issue manifests as e...
1998 Mercury Mystique | P1151P0304 Fault Code on 2010 GMC Sierra: Diagnosis and Solutions
I've been troubleshooting my 2010 GMC Sierra for the past week, and I'm currently dealing with a P0304 diagnostic trouble code. This indicates a misfire in cylinder 4. I'm looki...
2010 GMC Sierra | P03042007 Chevrolet Silverado 5.3L Fuel Evaporative System Fault: How to Fix EVAP Code and Pass Oregon Emissions
I'm troubleshooting a persistent EVAP system fault on my 2007 Chevrolet Silverado 5.3L with an active OBD2 code related to the fuel intake and evaporative emissions system. When...
2007 Silverado 5.3 | P217798 Z71 p0300 p0151 p0174
213k miles. 1,3,5,7 have recorded misfires of 32,9,187,28. 2,4,6,8 have 1446,5433,9046,5351. I know the codes are b2 02 sensor related and multiple misfires. I've watched misfir...
98 Z71 | P01512008 Chevy Avalanche 5.3L Engine P0300 Random Misfire Diagnosis and Fix
I've been experiencing erratic idle and sudden activation of the Stabiltrack light and flashing Check Engine Light (CEL) when accelerating hard. The lights disappear when I rele...
2008 Chevy Avalanche | P03002000 Honda Accord 2.3L Transmission Fault: P0700 and P0780 Codes Causing Stalling and Slow Acceleration
Hello. I'm experiencing recurring transmission issues with my 2000 Honda Accord 2.3L. The vehicle has triggered diagnostic codes P0700 and P0780 for the second time. Symptoms in...
2000 Honda Accord | P07002008 Chevy Malibu P0017 and P0016 Fault Code: Causes, Repair Cost, and Urgency
My 2008 Chevrolet Malibu is showing OBD-II fault codes P0017 and P0-16. These codes indicate a correlation issue between the crankshaft and camshaft position sensors. I'm lookin...
2008 Chevy Malibu | P00162006 Chevrolet 2500HD 6.0L Engine P0327 and P0331 Knock Sensor Fault: No Voltage from PCM?
I've reviewed several previous threads on P0327 and P0331 codes, and I'm experiencing the same issue with my 2006 Chevrolet 2500HD 6.0L diesel engine. Initially, I received a P0...
2006 Chevy 2500HD | P0327Ford E350 V10 2007 Check Engine Light P0191 - Persistent Fault Despite Tune-Up and Fuel Filter Replacement
The OBD system continues to display fault code P0191 on my 2007 Ford E350 V10. I have already taken the vehicle to two separate dealerships, both of which have diagnosed and att...
Ford E350 V 10 2007 | P0191Mitsubishi Outlander P0004 Fault Code: Meaning, Causes, and Solutions
I'm experiencing a P0004 diagnostic trouble code on my Mitsubishi Outlander. What does this error mean, and what steps should I take to diagnose and fix it? The P0004 code typic...
Mitsubishi Outlander | P0004P0441 Fault Code in 2007 Dodge 1500 Truck - Recurring Issue and Strange Engine Noise
I own a 2007 Dodge 1500 with a 4.7L engine. I recently received the P0441 diagnostic trouble code, which indicates a malfunction in the evaporative emission control system purge...
Dodge 2007 1500 Truck | P044199 GMC Suburban 5.7L Vortec Fuel Trim Issues: Lean Idle, Surging & O2 Sensor Erratic Readings with Whipple Supercharger
I'm experiencing persistent fuel trim issues on my 1999 GMC Suburban with the 5.7L Vortec engine. At idle, short-term fuel trims (STFT) are consistently between 14% and 17%, whi...
99 GMC Suburban | P21772006 Mazda Miata P2610 Fault Code: ECM/PCM Internal Engine Off Timer Performance Issue
The check engine light has activated on my 2006 Mazda Miata. After using an AutoZone OBD2 scanner, I received fault code P2610 — indicating an internal ECM/PCM engine off timer ...
2006 Mazda Miata | P26102003 Kia Rio Cinco P0340 Camshaft Position Sensor Issue - Check Engine Light Still On After Replacement
My 2003 Kia Rio Cinco won't pass smog due to a persistent check engine light. I previously had the oxygen sensors and catalytic converter replaced, and the diagnostic scan revea...
2003 Kia Rio Cinco | P0340P0201 Diagnostic and Fix for 2000 Jeep Wrangler 4-Cylinder Automatic - Hesitation After 15 Minutes of Running
I'm experiencing a P0201 fault code on my 2000 Jeep Wrangler 4-cylinder automatic. The symptoms are intermittent: the engine hesitates slightly when starting from a complete sto...
2000 Jeep Wrangler | P02012002 GMC Sierra 3500 5.7L Engine P0335 and P0300 Issues - Stalling, Jerking, Fuel Pressure Low
My 2002 GMC Savanna 3500 with a 5.7L V8 engine is experiencing severe driving issues: the vehicle starts to buck, jerk, stumble, and lose power while on the road. It occasionall...
2002 gmc savanna 3500 | 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.