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 Jeep Grand Cherokee P0725 Pending Code: Engine Dies Intermittently with No Start After Cranking
2000 Jeep Grand Cherokee, 4.7L Hemi, 4X4, 130,000 miles. The vehicle runs smoothly most of the time but will intermittently shut down unexpectedly after driving. When this occur...
2000 Jeep Grand Cherokee | P07252003 Dodge Grand Caravan P0700 P0732 P0733 - Transmission Downshifting Issues and Troubleshooting Guide
I have a 2003 Dodge Grand Caravan with a 3.3L V6 and automatic transmission. The vehicle downshifts aggressively in one gear, but otherwise runs smoothly. I've recently picked u...
03 dodge grand caravan | P0700P0172 & P0300 Misfire Issues in 2002 Lexus LS430 Dual-Fuel System
Hi, I own a 2002 Lexus LS43-0 that has been converted to run on both gasoline and propane. The vehicle normally starts on gasoline and automatically switches to propane once th...
Lexus LS430 | P01722004 Nissan Maxima Fault Codes P1271, P1281, P1800 Explained
Help needed identifying the meaning of fault codes P1271, P1281, and P1800 on a 2004 Nissan Maxima. I believe P1281 indicates that the coolant temperature is below the operating...
04 Maxima | P1271P0300 and P0420 Fault Diagnosis for 2004 Pontiac GTP Wide Track with 170,000 Miles
I recently purchased a 2004 Pontiac GTP Wide Track with 170,000 miles, featuring a supercharged 3.8L engine. The car was in excellent condition overall—only visible wear is on t...
2004 GTP Widetrack | P03002003 Dodge Neon SXT Evaporative Emission System Leak: Symptoms, Codes, and Fixes
A few weeks ago, my 2003 Dodge Neon SXT began experiencing power loss while driving uphill. The RPM gauge would surge, but the car failed to gain speed—this only occurred on the...
2003 Dodge Neon SXT | P21772004 Jeep Grand Cherokee WJ - P1489, P1490, P1287 Error Codes: Slow Acceleration, Gear Sticking and Jiggling at Stop
Vehicle Details: 2004 Jeep Grand Cherokee WJ (Automatic, 6-cylinder, 4.0L engine) Current Issue: When driving in Drive (D) from a standstill, the vehicle accelerates very slowl...
Grand Cherokee 2004 WJ | P12812004 Monte Carlo 3.4L P0452 and P0171: Fuel Tank Pressure and Lean Running Issues After Fuel Pump Replacement
New member here — hoping I'm in the right section. I own a 2004 Monte Carlo with a 3.4L engine, currently at 76,000 miles. One week ago, I had my fuel pump replaced. Last Thurs...
2004 Monte Carlo | P01712000 VW Passat P0300 Misfire & Multiple OBD-II Codes: P1131, P1411, P1423, P1569, P1603 Diagnosis and DIY Fix Guide
Vehicle: 2000 VW Passat GLX V6, 5-speed manual (150,000 miles), Engine Code ATQ Symptoms: - Persistent engine misfires (indicated by check engine light and rough idle) - ABS wa...
2000 VW Passat | P0131Nissan Maxima 2002 6-Speed P0420 Code: Symptoms, Causes, and Need for New Pre-Cat
Hello everyone, I'm new to this forum, so please forgive any mistakes or awkward phrasing. I purchased a 2002 Nissan Maxima with a 6-speed manual transmission two months ago. ...
Maxima 2002 | P04201999 Grand Cherokee Limited P1700 Fault Codes: Transmission Won't Engage Without Revving
I recently purchased a 1999 Grand Cherokee Limited with 4.7L V8, 4x4 drivetrain, and 110,000 miles. The vehicle has been experiencing battery-related issues—recently the battery...
99 Grand Cherokee Ltd. | P1700P0128 Code on 2004 Chevrolet Silverado: Cold Morning Warm-Up Issues and Diagnosis
I own a 2004 Chevrolet Silverado that is displaying a P0128 diagnostic trouble code. I've already replaced the thermostat and installed a new radiator, as my previous radiator f...
2004 Silverado | P0128PO717 Code on 2003 Toyota Sienna: Causes, Diagnosis, and Cost-Saving Tips
Hi everyone, I'm new to this forum. I recently replaced the O2 sensor on my 2003 Toyota Sienna with a 3.0L engine. The vehicle initially had rough idling due to a clogged IAC va...
2003 Toyota Sienna | P07171997 Nissan Quest GXE with P0400 and P0325: Causes, Fixes, and Smog Check Implications
I own a 1997 Nissan Quest GXE with a 3.0L V6 engine and approximately 174,900 miles. Two weeks ago, my mechanic replaced the front exhaust manifold due to a crack and also repai...
1997 Nissan Quest GXE | P0325Practical 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.