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.

Forum post list 12644 total topics
F

2004 Ford Crown Victoria DTC P1740: Meaning and Repair Guide

Vehicle: 2004 Ford Crown Victoria, VIN: VAIN: 2FAFP72W54X117828 Hi everyone, I'm looking for information on what the DTC P174-0 code means in my 2004 Ford Crown Victoria and how...

Ford Crown Victoria | P1740
2006-05-24
1 comments
2

2002 Ford F150 SuperCrew P0356, P1000, P1635 Codes: Rough Idle & No Acceleration After Coil Replacement

I'm frustrated with my 2002 Ford F150 SuperCrew equipped with a 4.6L Triton V8 engine. I've been experiencing persistent rough idle and lack of acceleration. I took the truck to...

2002 f150 | P0356
2006-05-23
2 comments
9

99 Dodge Caravan P0132, P0138, P0172 Fault Codes: Fuel Pressure and Sensor Diagnostics

The fuel pressure at the fuel rail could be a contributing factor to the P0132, P0138, and P0172 fault codes in a 1999 Dodge Caravan. These codes indicate issues with oxygen sen...

99 Dodge Caravan | P0132
2006-05-23
2 comments
V

Volvo OBD2 Code P1171: Meaning, Causes, and Fixes for 1999 V70R Turbo Wagon

Hi everyone, I own a 1999 Volvo V70R (all-wheel drive turbo wagon) with a 2.3-liter 5-cylinder turbo engine and am seeing OBDII diagnostic code P1171 — labeled as 'Manufacturer...

Volvo | P1171
2006-05-22
8 comments
1

1999 GMC Jimmy V6 4.3L with P1902 and Multiple DTC Codes: Engine Hesitation, Brake Light On, Power Loss on Hills

I own a 1999 GMC Jimmy (4WD, SLE trim, V6 4.3L engine) with approximately 140,000 kilometers. The vehicle has recently developed several driving issues and I'm seeking help to d...

1999 GMC JIMMY | P2177
2006-05-22
0 comments
9

99 Windstar DTC P0708: How to Adjust Digital Range Sensor (DTR) Voltage Without OBD2 Scanner?

Hi everyone, I'm looking for help with my 1999 Windstar that's throwing DTC P0708 — Digital Range Sensor (DTR) voltage out of range. The sensor is supposed to read between 1.3...

99 Windstar | P0708
2006-05-20
1 comments
G

GMC 1999 Jimmy 4.3L V6: DTC P1902 Meaning and Symptoms Explained

I own a 1999 GMC Jimmy with 4WD, SLE trim, 4.3L V6 engine, currently at 140,000 km. I'm experiencing several driving issues that have started to concern me. SYMPTOMS: - Engine ...

GMC | P1902
2006-05-18
0 comments
1

P1450 OBD2 Code in 1998 Windstar: EVAP System Fault - Causes and Vehicle Starting Issues

I'm experiencing a P1450 diagnostic trouble code on my 1998 Windstar, related to the Evaporative Emission (EVAP) system. I want to confirm whether this code is directly linked t...

1998 Windstar | P1450
2006-05-12
3 comments
2

2000 Ford Crown Victoria P71 - OBD2 Codes P0174 and P0171, Rough Idle After Start, MAF and EGR Replacement

I own a 2000 Ford Crown Victoria P71 with 60,800 miles. Previously used as a marked cruiser, it's now deployed as an EMS 'fly car' for rapid response. While driving to an emerg...

2000 Crown Victoria | P0171
2006-05-11
3 comments
9

98 Ford Ranger 3.0L with P0302 and P0455 Codes: How to Diagnose Misfire and EVAP System Issues

I own a 1998 Ford Ranger 3.0L 2WD automatic with persistent diagnostic trouble codes P0302 (Cylinder 2 Misfire) and P0455 (EVAP System Leak Detected). I've already replaced the ...

98 ford ranger 3.0 | P0302
2006-05-08
1 comments
C

1999 Jeep Cherokee 4.0L P0455 Vacuum Leak Troubleshooting Guide

I've been experiencing a recurring 'large vacuum leak' diagnostic trouble code (P0455) on my 1999 Jeep Cherokee with the 4.0L engine. I've tried resetting the code multiple time...

Cherokee 1999 4.0L | P0455
2006-05-06
9 comments
9

PO443 Fault Code Diagnosis and Solutions for 1997 Ford Taurus

I'm seeking help troubleshooting a PO443 fault code on my 1997 Ford Taurus. I've already replaced the purge control valve, but the issue persists. Could the fuel cap be the root...

97 Taurus | P0443
2006-05-06
3 comments
1

1996 Ford Windstar 3.8L Misfire on Cylinder 4 with P0151 and P1151 Codes - Diagnosis and Fixes

Hello everyone, I'm new to this forum and seeking advice on a persistent issue with my 1996 Ford Windstar 3.8L. The vehicle is showing two diagnostic trouble codes: P0151 (O2 Se...

1996 Ford Windstar | P0151
2006-05-04
11 comments
T

2002 Ford Taurus P0302 and P0316 Misfire: Post-Overheat Diagnosis & DIY Solutions

I'm experiencing persistent misfire codes P0302 (cylinder 2 misfire) and P0316 (initial engine run failure) on my 2002 Ford Taurus with a 3.0L V6 OHV (Vulcan) engine. The issue ...

Taurus | P0302
2006-05-03
9 comments
Page 450 / 633 | 12644 topics

Practical 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.