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
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P1151 Code on 1999 Mercury Cougar 2.5L V6: Causes, Fixes, and Smell of Eggs

Hi everyone, I'm having an issue with my 1999 Mercury Cougar 2.5L V6. About a month ago, I started getting the P115-1 diagnostic trouble code along with two other codes. The car...

manufaturer | P1151
2010-08-10
5 comments
2

2000 Chrysler Intrepid P0720 Error Code: Speed Sensor Issue and Transmission Stuck in First Gear

I own a 2000 Chrysler Intrepid and am currently experiencing three transmission-related error codes: P0731, P0720, and P0700. The speedometer is not functioning, and the vehicle...

2000 Chrysler Intrepid | P0720
2010-08-07
1 comments
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Mitsubishi Lancer 2003 P0172 Code After Swapping to 2006 Engine: Cause and Fix

Hi everyone, I recently swapped my 2003 Mitsubishi Lancer engine with a 2006 model. The new engine runs smoothly, but I'm consistently getting a P0172 code (Fuel Trim Bank 1 Too...

Mitsubishi Lancer | P0172
2010-08-07
2 comments
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P1397 Fault Code in 2004 BMW 3 Series: Causes, Symptoms, and Repair Solutions

I recently encountered the P1397 fault code on my 2004 BMW 3 Series. The diagnostic system indicates a 'Camshaft Position Sensor B Circuit (Bank 1)' issue. Can someone explain w...

BMW 3 SERIES 2004 | P1397
2010-08-04
0 comments
2

PO171 and PO174 Diagnostic Guide for 2007 Chevrolet Silverado with Stock Engine

Hi everyone, I'm new to this forum and wanted to ask for some help regarding a check engine light issue on my 2007 WT-style Chevrolet Silverado. The truck has approximately 33,0...

2007 Silverado | P0171
2010-08-04
4 comments
2

2003 Mazda6 2.3L AT - P0841 Code: Transmission Pressure Sensor 'A' Circuit Range/Performance Issue

I recently replaced the engine in my 2003 Mazda6 2.3L with an automatic transmission, and it's running smoothly now. However, this morning the vehicle exhibited hesitation when ...

2003 mazda 6 | P0841
2010-08-04
0 comments
1

1998 Honda CR-V P0420 Code Recurring After Multiple Cat Replacements and Flex Pipe Installations

I purchased a 1998 Honda CR-V three years ago (with 118,000 miles at the time) from a dealer in Houston. About a week after purchase, the Check Engine Light (CEL) activated with...

1998 CR-V | P0420
2010-08-02
1 comments
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Suzuki Jimny 1.5 DCI 2009 - P0263, P0170, P0201 Faults: Blue Smoke, Cold Start Issues After Roof Accident

Hi everyone, I'm experiencing persistent engine issues with my 2009 Suzuki Jimny 1.5 DCI (diesel), manual transmission. The vehicle has only covered 9,000 km and recently suffe...

Suzuki Jimny 1.5 dci 2009 | P0170
2010-08-02
0 comments
2

2000 Audi TT P0322 Fault: No Start Issue with Ignition/Engine Speed Input Circuit Error

My 2000 Audi TT is experiencing a no-start condition and is displaying fault code P0322 (Ignition/Distributor Engine Speed Input Circuit - No Signal). I'm looking for reliable t...

2000 AUDI TT | P0322
2010-08-02
0 comments
2

2006 Chevrolet Silverado P0446 OBD2 Code: EVAP System Fault and Poor Fuel Economy

I purchased this 2006 Chevrolet Silverado used 'as-is'. After driving approximately 50 miles, the check engine light activated. I connected a diagnostic tool and initially recei...

2006 chevrolet silverado | P0446
2010-07-31
1 comments
2

2000 Nissan Sentra OBD Error Codes P0430 and P0217 - Check Engine Light On, Overheating, Driving Hesitation

I own a 2000 Nissan Sentra with a 4-cylinder engine, 1.8L, automatic transmission. The vehicle has been showing OBD-II diagnostic codes P0430 and P0217 for the past 4 to 5 month...

2000 Nissan Sentra | P0217
2010-07-30
0 comments
2

2001 Volvo S60 2.4T Running Poorly with P0014 and P0342 OBD2 Codes - Immediate Shutdown and Rich Fuel Symptoms

I own a 2001 Volvo S60 2.4T and am experiencing serious engine issues. Yesterday, after driving it into my garage, the car shook violently within one minute and then shut off co...

2001 Volvo | P0014
2010-07-29
0 comments
1

1999 Ford F-250 P0353 Code: Cylinder 3 Misfire After Coil Pack Replacement

I recently encountered a P0353 diagnostic code on my 1999 Ford F-250, indicating a misfire detected in cylinder #3. I replaced the coil pack for cylinder 3, but the issue persis...

1999 f-250 | P0353
2010-07-29
0 comments
2

2003 Ford F150 5.4L Rough Idle with P0155 and P1151 O2 Sensor Codes

I own a 2003 Ford F150 5.4L with 114,000 miles. After a recent service at around 105,000 miles (including spark plugs, ignition coils, fuel system flush, coolant and transmissio...

2003 F150 5.4L | P0155
2010-07-28
1 comments
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P0308 Fault on 2002 Jeep Grand Cherokee 4.7L V8 with LPG: Diagnosis and Fixes

Hi everyone, I'm experiencing a persistent P0308 diagnostic trouble code on my 2002 Jeep Grand Cherokee equipped with a 4.7L V8 engine and running on LPG. The vehicle exhibits ...

Jeep Grand Cherokee | P0308
2010-07-28
8 comments
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P0125 Fault Code Explanation and Fix for Toyota Avensis 1.8 VVT-i (Model Year 01)

The P0125 diagnostic trouble code (DTC) appears in Toyota vehicles when there is an issue with the lambda probe (also known as the oxygen sensor) on Bank 1 Sensor 1. This fault ...

Toyota | P0125
2010-07-28
2 comments
Page 321 / 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.