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.
Dodge Caravan P0700 Code: Can a Burnt Solenoid Cause This Transmission Error?
Can a burnt solenoid cause a P0700 diagnostic code in a Dodge Caravan? The P0700 code is a generic transmission-related trouble code that indicates an issue within the transmiss...
dodge caravan | P0700P0172 and P0175 O2 Sensor Codes on 2006 Ford Taurus: Rich Fuel Condition, Poor MPG, and Sluggish O2 Sensors
My 2006 Ford Taurus is throwing diagnostic trouble codes P0172 and P0175, indicating a rich fuel condition. Fuel economy has dropped significantly—from 28 mpg to just 18 mpg. Lo...
Taurus | P01722008 Nissan Versa P2100 P2101 P0745 - Car Won't Accelerate Past 20mph After Throttle Body Replacement
I own a 2008 Nissan Versa and am experiencing persistent engine performance issues. The car fails to accelerate beyond 20 mph, and I've been getting diagnostic trouble codes P21...
2008 Nissan Versa | P07452003 Mitsubishi Eclipse GTS OBD2 Codes P0150, P0154, P0155, P0156, P0161 and P0303 - O2 Sensor & Cylinder 3 Misfire Diagnosis
My 2003 Mitsubishi Eclipse GTS (112,000 miles) is showing multiple OBD2 fault codes: P0150, P0154, P0155, P0156, P0161, and a cylinder 3 misfire code (P0303). The vehicle has be...
2003 Mitsubishi Eclipse GTS | P01502001 Nissan Liberty No Revs with P0650 and P0340 OBD2 Codes After Head Gasket Replacement
I own a 2001 Nissan Liberty that overheated and damaged the head gasket. I replaced the gasket, but now the vehicle is not responding to throttle—no revs at all. Using a Maxidas...
2001 nissan liberty | P03402005 Ford F150 5.4L with P0012 and P0021: Oil Pressure Drops, Phaser Noise, and VCT Issues
I own a 2005 Ford F150 Lariat with the 5.4L V8 engine and over 175,000 miles. For years, I've experienced what I believed to be phaser-related noise—no loss of power, no check e...
2005 F150 | P00122003 Nissan Altima P0031 and P0037 O2 Sensor Codes After Replacement
I recently replaced the oxygen sensors in my 2003 Nissan Altima, but now the vehicle is showing both P0031 and P0037 diagnostic trouble codes. I replaced Bank 1 Sensor 1 with an...
2003 nissan altima | P0031P0300 Fault Code on 1999 Olds Alero 3.4L V6: What Does It Mean and How to Diagnose?
I'm trying to understand what the readings mean when I freeze the screen on my OBD2 scanner for a 1999 Oldsmobile Alero with a 3.4L V6 engine. The fault code displayed is P0300 ...
99 Olds Alero 3.4L | P03001999 Chevrolet Express P1345, P0340, and P0155 Error Codes - Can This Van Start?
Hello everyone, I recently purchased a 1999 Chevrolet Express van that is not running. It's showing three diagnostic error codes: P1345, P034
99 chev express | P01552001 Chevrolet Blazer P0230 Fuel Pump Relay Control Circuit Fault: Loses Fuel Pressure in Drive
I'm experiencing a strange issue with my 2001 Chevrolet Blazer and would appreciate any help. The vehicle runs smoothly in Park or Reverse, but as soon as I shift into Drive, it...
BLAZER | P02302006 dodge ram hemi v8 codes p0202, p0204, p0304
My 2006 dodge ram hemi v8 started to misfire out of nowhere it says injector 4 and cylinder 4, so i switched #4 with #2 and did not resolve the problem now injector #2 code turn...
2006 dodge ram hemi v8 | P0202P0442 Diagnostic and Fix for 2002 Chevrolet Express 1500: Starting Issues and EVAP Leak Solutions
I've been experiencing difficulty starting my 2002 Chevrolet Express 1500 for several months. The vehicle typically only starts when I wiggle the shifter, which allows it to cra...
2002 chevrolet express 1500 | P04422006 Chevy HHR LT P0013/P0014 and U0073 Codes After Intake Camshaft Actuator Solenoid Replacement
I own a 2006 Chevrolet HHR LT. Initially, I received a P0010 code, which led me to replace the intake camshaft actuator solenoid. After the replacement, the traction control lig...
HHR | U00732009 Mazda CX-9 P0118 and P0122 OBD2 Error: Camshaft/Crankshaft Sensor Issues or Timing Chain Fault?
I'm experiencing OBD2 fault codes P0118 and P0125 on my 2009 Mazda CX-9. My mechanic suggested a faulty timing chain, citing issues with the camshaft and crankshaft position sen...
2009 mazda cx9 | P01181990 Mercedes C320 P0720 & P0600: ABS Light On, Transmission Stuck in First Gear, Speedometer Failure
I own a 1990 Mercedes-Benz C320. The MIL (Engine Light) is constantly on, followed by the ABS light turning on. A few seconds later, the dashboard displays warnings for ABS, ESP...
Mercedes C320 | P0600P0156 and P0161 Fault Codes on 1999 Ford Windstar V6: Downstream Heated Oxygen Sensor Issue
I'm experiencing Check Engine light activation with fault codes P0156 and P0161 on my 1999 Ford Windstar 3.8L V6 engine. These codes indicate a heated oxygen sensor problem on b...
1999 Ford Windstar V6 | P0156Practical 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.