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.
2001 Pontiac Grand Prix GT P1404 and P0405: EGR Valve Issues, Throttle Body Cleaning & Electrical Causes
About a month ago, my 2001 Pontiac Grand Prix GT (3.8L 3800 II series engine, approximately 108,000 km) started showing the P1404 diagnostic trouble code. After some research an...
2001 Pontiac Grand Prix | P04052003 Mustang Cobra P1000 and P0446 OBD2 Codes: Evap System Fault Diagnosis
I own a 2003 Mustang Cobra and recently scanned it with a handheld OBD2 scanner, which detected two fault codes: P1000 and P0446. The Check Engine Light is illuminated. The evap...
2003 mustang cobra | P0446P302 and P2305 Diagnostic Guide for 2011 Dodge Ram 4.7L Engine
This is my first post on the forum, so any assistance would be greatly appreciated. I recently performed routine maintenance on my 2011 Dodge Ram 1500 with a 4.7L engine — repla...
4.7L Ram 1500 | P23052013 Ford F-150 5.0L Misfire: P0390 & P0394 Codes Return After Engine Wash
A 2013 Ford F-150 5.0L engine was brought in for a misfire issue. The owner replaced cylinder 6 spark plug and coil, but the problem persisted. A compression test revealed low c...
2013 Ford F 150 5.0 | P03902005 dodge grande caravan transmission codes po700
changed the input and output sensors on transmission. would drive ok then check engine light comes on and wont go above 35 then itll kick off and drive normal so changed the tra...
2005 dodge grande caravan | P0700OBD2 Code P0171 on 2002 Dodge Ram: How to Fix This Fuel Trim Error
I'm experiencing OBD2 diagnostic code P0171 on my 2002 Dodge Ram. What steps should I take to resolve this issue? The code indicates a lean fuel mixture in the engine, which can...
Dodge Ram | P01712008 Chevrolet Cobalt P0016 and P0341 Error Codes: Diagnosis and Fixes After Sensor Replacement
I own a 2008 Chevrolet Cobalt with engine codes P0016 and P0341. I have already replaced both the crankshaft position sensor (CKP) and camshaft position sensor (CMP). All wiring...
2008 Chev Colbalt | P00162011 Ford Taurus Airbag Error Codes B0005 and B0082: Causes and Fixes
I'm experiencing two airbag-related error codes on my 2011 Ford Taurus: B0005 (Collapsible Steering Column Deployment Control) and B0080 (Passenger Seat Belt Load Limiter). I'd ...
2011 Taurus | B00052006 Monte Carlo SS C0558 / C0899 Codes
Have a 2006 Monte Carlo putting out a C0558 code which is an undetermined code in the scanner I am using. The parking brake, traction control, and ABS lights are on. On the same...
2006 Monte Carlo SS | C0558P0442 Code in 2002 Pontiac Grand Am GT: Possible Electrical Issue or Undetected Leak?
My 2002 Pontiac Grand Am GT (3.4L V6) has been displaying a persistent P0442 diagnostic trouble code for some time. I've already replaced the gas cap and the purge solenoid unde...
Pontiac Grand AM | P04422001 Lincoln Continental P0308 Code: Diagnosing Spark Plug and Injector Issues
I'm experiencing a persistent P0308 fault code on my 2001 Lincoln Continental. I attempted to isolate the issue by swapping components: I swapped cylinder #8 coil with #7, cylin...
Lincoln Continental | P03082006 Chevrolet Silverado Misfire in Cylinder 7 - Diagnosis and Solutions
I've replaced the coil, spark plug, and ignition wire for cylinder 7 on my 2006 Chevrolet Silverado, but the misfire persists. The old coil tested fine when installed on another...
2006 Silverado | P03072002 Oldsmobile Alero 4.4L Engine: P0430 Catalytic Converter Efficiency Below Threshold - How to Diagnose and Fix?
Hi, I'm having an issue with my 2002 Oldsmobile Alero with a 4.4L V6 engine. The check engine light has come on, and the diagnostic trouble code (DTC) is P0430 — indicating that...
2002 Alero | P04202010 Ram 3500 Diesel P0036 O2 Sensor Fault: Causes and Solutions
I own a 2010 Ram 3500 diesel truck and recently noticed the check engine light is on. The diagnostic tool has detected fault code P0036. I'm concerned whether this code could le...
2010 ram 3500 diesel | P00362008 Volkswagen Golf City P0139 Oxygen Sensor Circuit Slow Response Diagnosis and Fix
Hi everyone, I'm having an issue with my 2008 Volkswagen Golf City and have recently picked up the OBD2 fault code P0139: 'Oxygen Sensor Circuit Slow Response (Bank 1, Sensor 2)...
Golf | P013998 S10 2.2L Sputtering and Stalling with P0335 and P0342 Codes - Wiring or Sensor Issue?
My 1998 Chevrolet S10 2.2L truck has been driving fine for days or even a week at a time, but suddenly it starts sputtering while driving, then appears to stall completely—only ...
s10 | P03352004 Ford F150 P0045 Code: Oxygen Control Sensor Circuit Issue - How to Fix?
I recently received a P0045 diagnostic code from AutoZone. The technician mentioned it's a rare code related to the oxygen control sensor. While they suggested it might be an is...
2004 F150 | P0045Practical 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.