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.
2000 Nissan Frontier 6CL Stalls at High Speeds with P0340, P0325, and P1105 Error Codes
I own a 2000 Nissan Frontier 6-cylinder model with approximately 200,000 miles. My brother was driving it on the freeway at speeds of around 70-75 mph when the truck began to sl...
Nissan Frontier | P03252003 Ford Expedition 5.4L Misfire P0300 with Additional OBD II Codes - How to Diagnose and Fix
I own a 2003 Ford Expedition 5.4L 2WD with 93,000 miles. The vehicle was loaned to a church group and driven during a severe storm on highway conditions. After the drive, the OB...
03 Expedition 5.4l | P03002000 Cirrus P0300 System Lean V6 2.5L Fuel Injected
My daughter's 2000 Chrysler Cirrus is having an intermittent P0300 set when operating at highway speeds only and even then it doesn't happen always. It's happened on three times...
2000 Cirrus | P0300P1336 DTC in 1999 GMC Savana 2500: Crankshaft Position Sensor Issue and Fix Guide
I own a 1999 GMC Savana 2500 5.0L cargo van and recently received a P1336 diagnostic trouble code (DTC). After researching, I believe this code relates to the crankshaft positio...
GMC Savana 2500 | P13362001 Nissan Frontier 2.4L 5-Speed: P0420 Code Persistence and Pinging Issues - Diagnosis and Fixes
I've been experiencing the P0420 diagnostic trouble code on my 2001 Nissan Frontier with a 2.4L engine and 5-speed transmission for approximately four years. Recently, I replace...
2001 nissan frontier | P04201997 Chevy Tahoe P-0160 O2 Sensor Code: Causes, Fixes & Solutions
I have a 1997 Chevrolet Tahoe with 200,000 miles. Recently installed new catalytic converters and replaced the Bank 2 Sensor 2 oxygen sensor (O2 sensor). Despite these changes, ...
97 Chevy Tahoe | P0160Chevy Venture P0300 Multiple Cylinder Misfire: Diagnosis and Fixes
Last weekend, my wife's 1998-2005 Chevrolet Venture van began running poorly and triggered the Check Engine Light. Initially, I suspected a dropped cylinder, so I replaced all s...
Chevy Venture | P03001999 Chevrolet Malibu P0440 Code: Causes and Symptoms Explained
I'm experiencing a P044-0 diagnostic trouble code on my 1999 Chevrolet Malibu. After clearing the code, I notice it reappears during startup. At that moment, my tachometer momen...
1999 Chevy Malibu | P04402002 Honda Civic Power Loss with Diagnostic Code P1298 - ELD Module Failure and O2 Sensor Fix
The 2002 Honda Civic may experience sudden power loss accompanied by diagnostic trouble code P1298. While accessory fuses in both the engine compartment and under-dash fuse box ...
Civic 2002 | P1298P1780 Fault Code in 1999 Toyota Camry V6: Parking/Neutral Switch Issue and Repair Guidance
I recently received a P1780 diagnostic code on my 1999 Toyota Camry V6 with an automatic transmission. The code indicates a malfunction in the parking/neutral position switch. I...
Toyota Camry | P1780P0122 Fault Diagnosis on 2002 Ford F-550 Diesel: ETC Sensor Circuit Low Issue
Hi everyone, I'm working on diagnosing a P0122 fault (ETC sensor circuit low) on my 2002 Ford F-550 diesel. All-Data isn't providing clear guidance on where to locate the electr...
2002 F-550 | P0122'03 Neon P0301 misfire
Hello all, Car is '03 Neon 2.0L auto, approx. 83K mi. Problem is a #1cyl misfire at idle. Car runs, accelerates, and shifts fine. I tuned it up (Plugs- Chpamion RC9YC, wires-bel...
03 Neon | P0301P0420 Fault Resolution on 2001 Toyota Corolla CE: Aftermarket Converter Works Without OEM Cost
A Toyota dealer may recommend spending over $1,000 on an original equipment manufacturer (OEM) catalytic converter to fix a P0420 fault on a 2001 Toyota Corolla CE. However, thi...
2001 Corolla CE | P04202000 Ford Taurus P0301 Misfire: Coil or Fuel Injector? Diagnosis and Repair Advice
I'm experiencing a cylinder 1 misfire in my 2000 Ford Taurus, indicated by the P0301 diagnostic trouble code. A mechanic previously recommended replacing spark plugs and ignitio...
2000 Taurus | P0301P0122 Fault Diagnosis and Fix for 1997 Ford Crown Victoria 5.0L V8
Vehicle: 1997 Ford Crown Victoria, 64,000 miles Symptoms: Idle is stable but acceleration is poor — noticeable stalling and stumbling during driving. Initial troubleshooting: - ...
Crown Vic | P0122Practical 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.