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.
VW Passat 2003 Cooling System Fault: P2400 and P2181 Diagnosis & Symptoms
I recently scanned my 2003 VW Passat 1.8L and received two diagnostic trouble codes: (i) P2400 - Evaporative Emission System Leak Detected: Pump Control Circuit/Open, and (ii) P...
VW Passat 2003 | P21812009 Hyundai Sonata P0331 Knock Sensor Location and Fault Causes | How to Diagnose and Replace
Where is the knock sensor located in a 2009 Hyundai Sonata? What are common causes of a P0331 fault code? Will replacing the knock sensor mask an underlying engine problem, or w...
2009 Hyundai Sonata | P03312006 Honda Civic P0172 OBD2 Code: How to Fix Rich Fuel Mix in Bank 1
My 2006 Honda Civic Coupe is showing a P0172 diagnostic trouble code, which indicates that the fuel mixture in bank 1 is too rich—meaning there's too much fuel and not enough ai...
2006 Honda Civic | P01722001 Dodge Ram 1500 318ci Engine: P0351 DTC - Ignition Coil A Fault Diagnosis & Troubleshooting
While driving, I noticed the RPM suddenly dropped and failed to increase upon acceleration. I pulled over, and the engine sputtered before shutting off completely. Attempting to...
2001 Dodge Ram 1500 | P03512006 DODGE CHARGER 2.7 L hard to get it running code P0016
ENGINE WAS REPLACED TWICE AT ANOTHER LOCATION WHILE CRANKING FOR 6 OR 8 SECONDS ENGINE WILL START CODE FOR CAMSHAFT CORRELATION WILL PUP UP I HAD BELIEVED THE CAMSHAFT SPROCKET ...
2006 DODGE CHARGER 2.7 L | P0016P0300 Fault Code in 1996 Chevrolet Camaro 3.8L: Diagnosis and Next Steps
I'm experiencing a persistent P0300 misfire code on my 1996 Chevrolet Camaro with the 3.8L engine. The scan tool indicates significant misfires in Cylinder 6, approximately half...
96 camaro 3.8 | P03002000 Vauxhall Zafira 1.8 Petrol P0443 Code: Evap Valve Not Closing Properly
Hi everyone, I'm troubleshooting a persistent P0443 diagnostic trouble code on my 2000 Vauxhall Zafira 1.8 petrol model. The evaporative emission control system is showing an is...
2000 1.8 petrol Vauxhall Zafira | P04432003 Nissan Murano DTC P0021 and P0022 - Possible Sensor Issue or Recall?
I'm currently dealing with a 2003 Nissan Murano showing DTC codes P0021 and P0022. The vehicle has not been inspected yet, and I haven't verified the complaint with the customer...
2003 Murano | P0021Mercedes W203 P0008 and P000C Error Codes: Causes and Fixes for Camshaft Position Issues
Hello! I own a Mercedes W203 C220CDI (143HP, Build Year 2000) and am currently experiencing performance issues. The vehicle is showing two diagnostic error codes: - P0008: Engin...
Mercedes W203 | P00082000 Mazda MPV 2.5L California Model P0421 Fault Code: Which Bank Is the Catalyst Converter and How to Fix It?
I'm trying to identify which bank the catalyst converter is located in for my 2000 Mazda MPV 2.5L California model, specifically regarding OBD-II fault code P0421. Could someone...
2000 mazda MPV | P04212011 f350 p0013
my truck has a 6.2 gas engine and it runs rough when i start it in the morning if it real cold like -25c to -30c.it doesnt idle up unless i give it a little gas.this morning whe...
2011 F350 | P0013Nissan Qashqai 1.5Dci 2009 OBDII Error Code P1644: Causes and Fixes
Hi everyone, Does anyone know what causes OBDII error code P1644 in a Nissan Qashqai 1.5Dci from 2009, and how to fix it? Thank you for any insights or troubleshooting steps. ...
Nissan Qashqai | P1644Mercedes Benz ML350 P0016 and P0036 Error Codes: MIL Light On - How to Fix at Home?
I own a Mercedes-Benz ML350 and my check engine light (MIL) is on. A diagnostic scan revealed two error codes: 1. P0016 – The intake camshaft for the right cylinder bank is con...
Mercedes Benz ML350 | P00161998 Acura Integra P0420 Code: Power Loss at High Speeds and Exhaust Catalyst Failure
Over the past three weeks, my 1998 Acura Integra LS has experienced sudden power loss while driving. This occurs once at higher speeds (55 mph) and three times at lower speeds (...
1998 Acura Integra | P04202007 Chevrolet Impala P1174 Diagnostic Explanation
What does the P1174 diagnostic code mean for a 2007 Chevrolet Impala? The P1174 code indicates a problem with the fuel trim system, specifically indicating that the Powertrain C...
2007 Impala | P11742004 Chrysler Concorde 3.5L V6 - Won't Rev Past 2300 RPM, Codes P0016 and P0300
I own a 2004 Chrysler Concorde with a 3.5L V6 engine. The vehicle will not rev past approximately 2350 RPM under any condition—whether in drive or neutral, cold or hot. It consi...
04 Concorde 3.5L | P00161997 Mercedes CLK230K P0341 Fault: How to Diagnose and Fix the Camshaft Position Sensor Issue
I recently purchased a 1997 Mercedes CLK230K that has been idle for three years with no usage. The vehicle is now displaying a persistent OBD-II fault code P0341, which indicate...
1997 Mercedes CLK230K | P0341P1131 O2 Sensor Fault in 2000 Ford Expedition - Diagnosis and Fix Guide
I own a 2000 Ford Expedition with a 4.6L V8 engine and am currently experiencing a P1131 diagnostic trouble code. The vehicle is showing an O2 sensor issue (Bank 1 Sensor 1). Sh...
Ford Expedition | P1131Practical 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.