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
2

2003 Mazda MPV P0743 Torque Converter Clutch (TCC) Circuit Electrical

I am Mr. Tom, I have 2003 Mazda mpv I have driven for almost 2 years now. I got P0743 Torque Converter Clutch (TCC) Circuit Electrical then I decided to install a new valve body...

2003 Mazda MPV | P0743
2016-03-23
5 comments
2

How to Fix P0101 OBD2 Code in 2012 Chevrolet Sonic: Step-by-Step Solution

I own a 2012 Chevrolet Sonic with the check engine light illuminated. I recently performed an oil and filter change, and during a 600-mile road trip everything ran smoothly. How...

2012 Chevy Sonic | P0101
2016-03-22
2 comments
2

2001 New Beetle GLX 1.8T Misfire Codes P0340, P0352, P0300-P0304 & P1297/P0012: Diagnosing Root Cause for Turbo and Ignition Issues

I recently purchased a 2001 New Beetle GLX 1.8T and am experiencing multiple OBD-II diagnostic codes: P0340, P0352, P0300, P0302, P0301, P0303, P0304, P0102, and P1297 along wit...

2001 New Beetle GLX 1.8t | P0012
2016-03-22
4 comments
2

2001 GMC Sierra 5.3L Engine P0332 Code: What It Means and How to Fix Knock Sensor 2 Circuit Low (Bank 2)

I'm experiencing the OBD2 diagnostic code P0332 on my 2001 GMC Sierra with a 5.3L V8 engine. The code reads 'Knock Sensor 2 Circuit Low - Bank 2'. What does this mean, and what ...

2001 GMC Sierra | P0332
2016-03-21
4 comments
1

1997 Chrysler LHS P0134: Oxygen Sensor Circuit No Activity Detected - Location and Diagnosis

I own a 1997 Chrysler LHS with a 3.5L engine. Recently, my check engine light came on. After checking the code using both key-on/key-off and OBD2 scan tool procedures, I receive...

1997 Chrysler LHS | P0134
2016-03-21
1 comments
2

2010 Ford F150 4x4 Fault Codes P0010, P0020, P0102, P0135, P0155, and P0443: Causes and DIY Fixes

The following OBD2 diagnostic trouble codes (DTCs) have been detected in a 2010 Ford F15-0 4x4 vehicle: - P0010: Variable Valve Timing (VCT) Actuator Circuit - Bank 1 - P0020: ...

2010 F150 4x4 | P0010
2016-03-21
2 comments
2

2003 Lincoln LS V8 OBD2 Code Diagnosis: P2196, P2198, P0102, P0113, P0355, P2106 Explained

Hello! I'm looking for help diagnosing the OBD2 trouble codes on my 2003 Lincoln LS V8. The codes I'm seeing are: P2196, P2198, P0102, P0113, P035

2003 Lincoln LS | P0102
2016-03-19
2 comments
1

1997 Chevrolet S-10 P0174 Fault Code: Running Lean on Bank 2

The vehicle is displaying OBD-II diagnostic code P0174, indicating that cylinder bank 2 is running lean. This means the air-fuel mixture in this bank is too rich or the fuel del...

1997 Chevrolet S-10 | P0174
2016-03-18
1 comments
2

2002 Jeep Liberty 2.4L Powertech 4-Cylinder P0301 Misfire: Ignition, Fuel or Mechanical Cause?

Hi everyone, this is my first post on the forum. I own a 2002 Jeep Liberty (KJ) with the 2.4L Chrysler Powertech 4-cylinder engine. Over the past six weeks, it has consistently...

2002 Jeep Liberty | P0301
2016-03-18
5 comments
2

2008 Buick Lucerne P0480 Emissions Failure - Relay Replacement Not Resolving Issue

I own a 2008 Buick Lucerne and am experiencing persistent emissions failure. I've already replaced the repair temp sensor and the relay, but the P0480 diagnostic code returns af...

2008 Buick Lucerne | P0480
2016-03-16
1 comments
2

2004 Chevy Trailblazer P0756: How to Replace Transmission Control Solenoid and Locate It

I have a P0756 diagnostic code on my 2004 Chevrolet Trailblazer, and I'm looking for clear instructions on how to replace the transmission control solenoid. Where exactly is thi...

2004 Chevy Trailblazer | P0756
2016-03-16
2 comments
2

2014 Dodge Ram 6.7L Diesel P0299 P0470 P0401 Fault Codes - Diagnosis and Fixes

I own a 2014 Dodge Ram 6.7L diesel model and am consistently receiving fault codes P0299, P0471, and P0401. I have already cleaned the intake pressure sensor and EGR solenoid, b...

2014 Dodge Ram 6.7 diesel | P0299
2016-03-16
3 comments
S

P0017 OBD2 Code in Saturn Aura XR 3.5L: Cold Weather Trigger, Actuator Swap Failed

My 2008 Saturn Aura XR 3.5L has been showing P0017 fault code for several months. The issue appears specifically when the engine is cold (between 40-50°F). I've reset the code m...

Saturn Aura XR 3.5L | P0017
2016-03-16
1 comments
0

2005 Ford Ranger 3.0L Engine P0352 Code: No Spark on Cylinders 3 & 4 Despite New Coils, Wires and Spark Plugs

My 2005 Ford Ranger with a 3.0L engine is showing fault code P0352, indicating no spark or weak spark on cylinders 3 and 4. The truck has 250,000 miles on it and originally had ...

05 Ranger | P0352
2016-03-16
11 comments
9

1996 Mazda Miata Crankshaft Position Sensor Failure - OBD2 Code P0340 After Replacement

1996 Mazda MX-5 Miata with 230,000 miles. The crankshaft position sensor was replaced at the end of October. Two weeks ago, the vehicle began failing to start. I replaced the cr...

96 Miata | P2177
2016-03-15
2 comments
2

2003 Mitsubishi Eclipse P0335 Fault: No Start After Replacing Crankshaft Position Sensor

I have replaced the crankshaft position sensor on my 2003 Mitsubishi Eclipse 2.4L manual transmission vehicle, but the car still won't start. All diagnostic readings show proper...

2003 Mitsubishi Eclipse | P0335
2016-03-15
1 comments
9

1998 Chevy Express 4.3 Vortec P0171 and P0174 OBD2 Code - Check Engine Light Returning After Full Component Replacement

My 1998 Chevrolet Express 4.3L Vortec engine is showing persistent P0171 (System Too Lean) and P0174 (System Too Rich) OBD2 codes. The check engine light comes back on repeatedl...

98 Chevy Express 4.3 Vortec | P0171
2016-03-15
4 comments
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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.