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.
BMW 740iL P0459 Evaporative Emission System Leak Diagnosis and Fix
The check engine light has been on for several months, intermittently turning off and then returning. An OBD2 scanner (Innova 3100) detected fault code P0455, indicating a large...
BMW 740iL | P04552005 Monte Carlo Hesitation During Acceleration with P0455 Emission Leak Code
I own a 2005 Monte Carlo with a 3.4L V6 engine that has been exhibiting hesitation specifically during acceleration over the past few months. The check engine light activated an...
05 Monte Carlo | P0455BMW E38 740 IL (1998) Multiple OBD2 Codes: P0170, P0173, P0300, P0301, P0302 - How to Fix?
Hi everyone, I'm currently dealing with multiple OBD2 diagnostic codes on my BMW E38 74-IL (1998 model): P0170, P0173, P0300, P0301, and P0302. The car won't start reliably, and...
BMW E38 740 IL | P21772005 Chevrolet Cobalt LS P0141 O2 Sensor Fault - Check Engine Light Returns After Replacement
I own a 2005 Chevrolet Cobalt LS with a 2.2-liter 4-cylinder engine. The vehicle has triggered a check engine light, displaying fault code P0141, which indicates a malfunction i...
05 Chevy Cobalt | P0141P0153 Fault Code on 2007 Infiniti FX35 with VQ35DE Engine - Diagnosis and Sensor Replacement Guide
I own a 2007 Infiniti FX35 equipped with the VQ35DE engine (a Nissan-sourced unit). The vehicle was originally purchased new in the USA in 2007 and later imported to Europe, whe...
Infiniti | P01532004 Dodge Ram 1500 5.7 HEMI P0113 and P2099 Fault Code - Oil Change Aftermath
I own a 2004 Dodge Ram 1500 5.7L HEMI 4x4 pickup truck. This is my girlfriend's vehicle, and I recently performed a routine oil change as I always do. After changing the oil, I ...
2004 dodge ram 1500 5.7 hemi | P0113PO750 Fault Code in 2004 Hyundai Elantra: Locating the Shift Solenoid A Valve Body
The PO750 diagnostic code indicates a fault with the shift solenoid A in the transmission. My question is: where exactly is the valve body located—on the side or on the top of t...
2004 Hyundai Elantra | P07501996 Toyota Camry P0100 and P0110 Error: MAF and IAT Sensor Wiring or Hose Connection Issues
After replacing the fuel filter on my 1996 Toyota Camry, the check engine light has remained on with diagnostic codes P0100 (Mass Airflow Sensor) and P0110 (Intake Air Temperatu...
96 Camry | P01002001 Land Rover Discovery II V8 OBD Code P1668 - Immobilizer Issue and Starting Problems
My wife left the 2001 Land Rover Discovery II V8 at home for about 3 hours. When she returned, the vehicle would not start — it turned over normally but failed to fire up. I hav...
2001 Land Rover V8 Disco II | P16681996 Nissan Maxima Inspection Failure: How to Fix P1445 EVAP Canister Purge Volume Control Valve Code
My 1996 Nissan Maxima recently failed its emissions inspection, and the fault code displayed is P1445. After researching, I understand this code relates to the EVAP Canister Pur...
1996 Nissan Maxima | P1445P0422 Fault in 2000 Kia Sportage: Catalyst Efficiency Issue & DIY Solutions
I own a 2000 Kia Sportage with approximately 80,000 miles on the odometer and have recently started receiving a P0422 diagnostic trouble code. This code indicates that the catal...
Kia Sportage | P0422P0305 and P0305PD Fault on 2006 Colorado I5 - How to Diagnose Coil or Injector?
I own a 2006 Colorado with a 5.0L V8 engine and am consistently receiving diagnostic trouble codes P0305 and P0305PD. I've already replaced the spark plug, which has improved en...
Colorado | P03052002 Mazda Millenia 2.5L with P0300, P0421, and P0431 Codes - Diagnosis and Fixes
I own a 2002 Mazda Millenia 2.5L with 170,000 miles that is showing three diagnostic trouble codes: P0300 (Random Misfire), P0421 (Catalyst Efficiency Below Threshold - Bank 1),...
Mazda Millenia | P03001996 GMC Yukon P0151 P0131 P0300 - Engine Dies on Acceleration, Flooding, and Pulsating While Driving
My 1996 GMC Yukon is showing fault codes P0151, P0131, and P0300. When I accelerate, the engine floods and dies. While driving, it suddenly shuts off and requires me to stop and...
1996 GMC Yukon | P01312007 Toyota Sienna P0138 O2 Sensor Issue: Light Comes On at Highway Speeds
I own a 2007 Toyota Sienna Limited AWD and recently encountered a check engine light with code P0138 (High Voltage O2 Sensor Bank 1, Sensor 2). The issue first appeared a month ...
2007 Toyota Sienna | P01381996 Camry V6 XLE with 158k miles and P0420 code: Is it a faulty catalytic converter or MAF sensor issue?
The check engine light has been on for 14 months. I initially had a new catalytic converter installed at Tuffy's, but the light returned four months later. Tuffy's replaced the ...
1996 Camry V6 XLE | P0420BMW E46 2002 P1638 and P0221 Error Codes: Can This Be Fixed at Home or by a Technician?
Hi everyone, My BMW E46 2002 has started intermittently displaying error codes P1638 (Throttle Valve Position Control - Throttle Stuck Temporarily) and P0221 (Throttle/Petal Po...
BMW 2002 e46 | P1638Practical 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.