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 Acura TL P1768 Fault: Transmission Clutch Solenoid Purge Valve Circuit Diagnosis
I'm experiencing a P1768 diagnostic code on my 2000 Acura TL, which the manufacturer has identified as 'transmission clutch solenoid purge valve circuit'. While this issue sound...
2000 Acura TL | P17682000 Isuzu Trooper Check Engine Codes P1290, P1125, P1295 - How to Fix Idle and Power Issues
I recently worked on my 2000 Isuzu Trooper and noticed an issue when I tried to manually move the throttle. What I thought was the throttle pedal actually caused the engine to s...
2000 Isuzu Trooper | P1125P0305 Fault in 1999 Dodge Caravan 3.8L: Stumbles During Acceleration - Solutions & Diagnosis
The MIL light has been on for some time, and the diagnostic code consistently reads P0305. My 1999 Dodge Caravan 3.8L is at 32,000 miles. I replaced the spark plugs and ignition...
1999 Dodge Caravan 3.8L | P03051999 Dodge Durango 318 V8 P0138 and P0304: Idle Stuttering, Misfires, and Rain-Related Code Behavior
My 1999 Dodge Durango with a 318 V8 engine is experiencing intermittent stutters and surges at idle and while in gear. The check engine light appears to flicker or turn off duri...
1999 Dodge Durango | P01381997 Ford Expedition 5.4L 4WD OBD2 Code P1299: No Heat and Heater Core Failure Diagnosis
My 1997 Ford Expedition with a 5.4L V8 and 4WD is not producing heat when the heater is turned on, and I've recently received a diagnostic code P1299. The vehicle has been runni...
1997 Ford Expedition | P1299P0101 code on a 1999 Jetta TDI, sluggish, CEL showing
My CEL recently went on and at about the same time, my jetta started acting sluggish when excellerating. There is some hesitation when first taking off , as well. Having owned ...
1999 Jetta TDI | P01012000 GMC Silverado 6.0L P0157 O2 Sensor Code: Causes, Fixes & Solutions
I've been dealing with a recurring P0157 code on my 2000 GMC Silverado 6.0L for over a year now. Despite replacing all oxygen sensors, the code keeps coming back—sometimes inter...
2000 2500 6.0L Silverado | P0157P0420 Code on 2002 Toyota Camry V6: Diagnosis, Warranty & Repair Options
Hi everyone, I'm new to this forum and have recently been dealing with multiple check engine light activations. My wife drives a 2002 Toyota Camry SE with a 58,000-mile V6 engi...
2002 Camry | P04202001 VW Jetta VR6 2.8 Check Engine Light: PO1165 and PO1142 Code Explanation
I own a 2001 Volkswagen Jetta VR6 2.8L engine with 113,000 miles. The check engine light has activated, and the onboard diagnostic system has returned two fault codes: PO1165 an...
2001 VW Jetta VR6 2.8 | P1142VW Cabrio 1997 P0440 Trouble Code: What Does It Mean and How to Fix?
I own a 1997 VW Cabrio with a 2.0L engine and 5-speed manual transmission. I've been consistently receiving the P0440 diagnostic trouble code. Can someone explain what this code...
VW Cabrio | P0440P0306 Cylinder Misfire Diagnosis for 1999 Buick LaSabre - Common Causes After 2-Year Storage
I recently encountered Diagnostic Code P0306 indicating a misfire in Cylinder 6 on my 1999 Buick LaSabre. The vehicle was purchased from a neighbor who bought it new and has onl...
1999 Buick LaSabre | P03062000 Ford Explorer OBD P0171 and P0174 Codes Returning After Washing - Possible Airflow System Issue?
My 2000 Ford Explorer, with over 150,000 miles, has been showing up OBD fault codes P0171 and P0174 after being washed. I've previously reset the codes and the truck runs fine t...
2000 Ford Explorer | P0171P0340 Fault Diagnosis and Repair Guide for 2003 Chrysler T&C with 3.3L V6 Engine
Hi everyone, first time posting here — I'm really looking to learn more about car maintenance and diagnostics. I own a 2003 Chrysler T&C equipped with a 3.3L V6 engine, current...
Chrysler T&C | P0340P0174 and P0171 Diagnostic Issues on 1998 Ford F-150 - Recurring After Fuel Filter Replacement
My 1998 Ford F-150 is showing diagnostic trouble codes P0174 and P0171. A mechanic inspected the vehicle, replaced the fuel filter due to a suspected clogged filter, and claimed...
98 f-150 | P0171PO171 and PO174 Diagnostic Guide for 1998 Ford F-150: Causes and Next Steps
I recently purchased a 1998 Ford F-15
1998 F-150 | P0171P0125 and P1135 OBD2 Diagnostic Issues on 2000 Toyota 4Runner V6 Engine
I recently brought my 2000 Toyota 4Runner (4WD, automatic transmission, V6 engine) to a dealership for check engine light diagnosis. The scan revealed two OBD2 fault codes: P012...
2000 4 Runner | P01252006 Honda Civic EX 1.8L P0171 Code: CAI or MAF Issue After Extended Driving?
I own a 2006 Honda Civic EX with a 1.8L engine, automatic transmission, and a Cold Air Intake (CAI). The car intermittently displays the P017-1 diagnostic code, which only appea...
2006 Honda Civic EX | P01711996 Mazda B2300 OBD-II P0171 and P1113 Fault Diagnosis and Solutions
I'm currently working on a 1996 Mazda B2300 with 169,000 miles. This vehicle is essentially a Ford Ranger with the same engine part numbers as Ford models. The check engine ligh...
1996 Mazda B2300 | P0171Practical 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.