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.
1996 Dodge Ram 1500 2WD P1762 & P1763 Fault: Lost 1st/2nd Gears, Now in Limp Mode - What Should I Do?
I own a 1996 Dodge Ram 1500 2WD with a 5.2L V8 engine, currently located in the UK. Since experiencing gear shifting issues, I've been reading diagnostic codes P1762 and P1763 f...
96 Ram | P17621999 Mazda Protege ES P0171 and P0420: How to Fix Lean Condition Before Replacing Converter
I own a 1999 Mazda Protege ES with a 1.8L engine, automatic transmission, and approximately 156,000 miles. When I first purchased the vehicle, it displayed a P0171 code (System ...
1999 mazda protege es | P0171Civic 2002 Power Loss P1298
2002 Honda Civic 38k miles and I don't drive it too hard. Maintenance has been kept up with. Sparkplugs are new last summer, injector cleaner added to fuel as well as the water ...
Civic 2002 | P1298P0101 P0107 P0430 P0420 Diagnosis and Fixes for 1996 Chevrolet Camaro LT1 with 6-Speed Transmission
I recently installed a new LT1 engine in my 1996 Chevrolet Camaro with a 6-speed transmission, but I'm consistently receiving the following OBD-II diagnostic codes: P0101, P0107...
1996 Camaro | P0101P1171 Fuel Air Metering Code in 1999 Honda Passport (Isuzu Rodeo Engine) - Diagnosis & Fix Guide
I'm experiencing a recurring P1171 'Fuel Air Metering' diagnostic trouble code (DTC) on my 1999 Honda Passport equipped with an Isuzu 3.2L V6 engine — identical to the Isuzu Rod...
Isuzu Rodeo | P11711999 Toyota Camry P0340 Code: Can the PCM Be Diagnosed Without Replacement?
Hello, My sister-in-law owns a 1999 Toyota Camry with a 4-cylinder engine. Recently, I detected a P0340 trouble code using my OBD2 scan tool. The vehicle exhibits classic sympt...
99 Toyota Camry | P0340Buick 1998 P1676 Code: What Does It Mean? Symptoms & Solutions for 3.8L LeSabre Owners
I'm having trouble finding reliable information on Buick 1998 P1676 code. This is a P1xxx code specific to General Motors vehicles, and I've seen it appear in my 1998 Buick LeSa...
Buick 98 | P16762003 Dodge Durango P0456 OBDII Code: EVAP System Leak Diagnosis and Repair Cost Guide
The check engine light has been coming on even though the vehicle runs fine. My husband reset the onboard computer, but the light reappeared when the fuel level dropped to about...
2003 Dodge Durango | P0456P0325 Knock Sensor and P1441 Vacuum Cut Bypass Valve Codes in 1997 Nissan Sentra GXE
Hi everyone, I'm new to this forum and have been researching solutions for my persistent engine check light on my 1997 Nissan Sentra GXE. I've encountered a series of diagnosti...
Unknown | P03251997 GMC Safari Intake Gasket Replacement Leads to P0340 Code - Troubleshooting Guide
Hi everyone, I'm seeking help with a recurring issue on my 1997 GMC Safari Conversion Van. After purchasing the vehicle, I discovered a blown intake gasket that was causing cool...
1997 GMC Safari | P03401997 Jeep Cherokee P0700 and P0705 Trouble: Transmission Malfunction Diagnosis
My 1997 Jeep Cherokee is displaying diagnostic trouble codes P0700 and P0705, indicating a transmission malfunction. I'm looking for reliable insights into what these codes mean...
JEEP Cherokee | P0700P0441 Fault on 1997 Monte Carlo Z34: Evaporative Emission System Issue and Diagnosis Tips
I recently purchased a used 1997 Monte Carlo Z34 with the 3.4L DOHC engine, and I'm currently experiencing an issue with the Evaporative Control System (EVAP). The vehicle has a...
97 Monte Carlo | P0441Jeep Cherokee P0700 and P0705 Diagnostic Help - Low Budget Repair Options
My 1997 Jeep Cherokee is displaying fault codes P0700 and P0705. The vehicle operates normally, but I notice a slight delay in gear shifting. Despite the issue not being severe,...
Jeep Cherokee | P0700P0421 Code on 2001 Mitsubishi Montero Sport: Is $3K Repair Price Reasonable?
My 2001 Mitsubishi Montero Sport has been showing the 'Service Engine Soon' light intermittently for several years. This time, it failed inspection because the light remains on....
Mitsubishi Montero Sport | P04211997 GMC Suburban P0301 Misfire After Intake Gasket Replacement - How to Fix Timing and Diagnose Cylinder 1 Issue
I recently replaced the intake gaskets on my 1997 GMC Suburban with a 350 engine. I took great care to document all vacuum lines, clean both upper and lower intake plenums, and ...
1997 GMC Suburban | P03012007 PT Cruiser OBD Codes P0700, P0750, P0463: Transmission Stuck in 2nd Gear & Fuel Gauge Malfunction
I own a 2007 PT Cruiser with a 2.4L inline-4 engine and automatic transmission that is currently in 'limp mode.' The vehicle will only stay in second gear when driving, and the ...
2007 PT Cruiser | P04632000 Chevy Prizm P0420 Code: Causes, Symptoms & Cost-Effective Diagnosis Guide
Hi everyone! I've been experiencing a recurring check engine light with code P0420 on my 2000 Chevrolet Prizm, which has now reached approximately 95,000 miles. This issue firs...
2000 Chevy Prizm | P04202000 Ford Explorer 5.0L V8 P0172 and P034- Misfire Under Electrical Load After Alternator Replacement
I have a 2000 Ford Explorer with a 5.0L V8 engine that has reached 106,000 miles. The issue began after experiencing low voltage from the air ride suspension system. A local sho...
2000 Explorer | P0172Practical 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.