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.
2005 honda odyssey cylinder misfire code P0300,02,03,04,05
i have 2005 honda odyssey and has 110,000 mile on it. Last friday when my wife started it, it run rough and checked engine light came on. I checked the codes and it shows the P0...
2005 Honda Odyssey | P0300P0300 Fault Code on 2001 GMC 5.3L V8: Diagnosis and Solutions for Misfire at Idle and Acceleration
I recently encountered a persistent SES light on my 2001 GMC with a 5.3L V8 engine, which blinks under heavy load—such as when climbing hills. The diagnostic trouble code (DTC) ...
GMC 5.3L 2001 | P03002003 Mitsubishi Eclipse GS P0135 O2 Heater Circuit Fault: Diagnosis and Repair Guide
I recently purchased an OBD2 scanner because my 'Service Engine Soon' light was illuminated, and it returned a diagnostic code: P0135 — O2 Sensor Heater Circuit Bank 1 Sensor 1....
2003 Mitsubishi Eclipse GS | P01352000 Chevy Silverado 4.8L Engine P0332 Knock Sensor Replacement Guide
I'm trying to replace the knock sensor on my 2000 Chevrolet Silverado with a 4.8L V6 engine. I need to know which side the block 2 sensor is located on, as it's under the intake...
2000 4.8 Chevy Silverado | P0332Ford Fiesta 2004 1.4i Zetec P0420 Code: Catalyst Efficiency Below Threshold Diagnosis and Solutions
Hi everyone, I'm posting about a recurring issue I've been experiencing with my Ford Fiesta 2004 1.4i Zetec engine (current mileage: 45,000 miles). The vehicle is showing a P0...
Ford Fiesta | P04201998 GMC Bravada P0300 Misfire: Diagnosis and Repair Steps After Multiple Part Replacements
I own a 1998 GMC Bravada with a persistent P0300 misfire code. I've already replaced the ignition coil, MAF sensor, distributor cap, rotor, spark plugs, and wires. No vacuum lea...
98 bravada | P03002002 Infiniti Q45 Sport P0720 Code: Vehicle Speed Sensor Issue in RE5R05A Transmission
I own a 2002 Infiniti Q45 (F50) Sport with a 4.5L V8 engine and the RE5R05A transmission. I've been consistently receiving a P0720 diagnostic trouble code — Vehicle Speed Sensor...
2002 Infiniti Q45Sport | P07202007 Subaru Outback H6 3.0L - P0174 Code: Is It a MAF or Intake Manifold Vacuum Leak?
I'm experiencing a P0174 diagnostic trouble code on my 2007 Subaru Outback H6 3.0L. I'm trying to determine whether this is due to a malfunctioning Mass Air Flow (MAF) sensor or...
2007 subaru outback h6 3.0 | P01742002 Ford Escape OBD II Code P0401: EGR System Issue Diagnosis and Repair Costs
The check engine light activated while I was driving home tonight. After connecting a OBD-II scanner, I received the P0401 diagnostic trouble code, indicating an issue with the ...
2002 Ford Escape | P04012002 F-150 P0171 and P0174 Codes: Exhaust Leak or Sensor Issue?
I have a 2000 Explorer that I modified with a 2001 Ranger engine. I believe the exhaust mounts are incompatible because I'm unable to connect the catalytic converters to the hea...
2002 f-150 | P0171P0441 Fault in 2004 Chrysler Pacifica - How to Locate Carbon Canister and Purge Solenoid
I own a 2004 Chrysler Pacifica with a 3.5L engine. Recently, the vehicle has triggered Diagnostic Trouble Code P0441, indicating a malfunction in the evaporative emission contro...
2004 Pacifica | P04412002 Jetta GLS 2.0L Engine Codes P0321, P0722, P0730, P0740: DIY Fix Options and Required Parts
My 2002 Jetta GLS 2.0L (4A engine) with 109,000 miles is showing diagnostic trouble codes P0321, P0722, P0730, and P0740. I'm looking for clear explanations of what each code me...
Jetta | P0321P0113 OBD Error on Vauxhall Astra 1.6 56 Plate - Should Intake Manifold Be Replaced?
I'm seeking advice regarding a recurring OBD2 fault code P0113 on my 2006 Vauxhall Astra 1.6 (56 plate) with approximately 60,000 miles. The issue has been diagnosed multiple t...
Vauxhall Astra | P01131998 Ford Escort Emissions Failure: Troubleshooting OBD2 Codes 0171 and 1131
My 1998 Ford Escort failed emissions testing today, triggering OBD2 diagnostic codes 0171 and 1136. I understand that code 1131 relates to the oxygen (O2) sensor, but I'm unsure...
1998 Ford Escort | P017199 Honda Odyssey P0304 & P0305 Misfire with P1399 Code: How to Diagnose and Fix Using Coil Drop Test
When experiencing misfire codes like P0304, P0305, or the generic P1399 on a 1999 Honda Odyssey, follow this proven diagnostic sequence from cheapest to most expensive: 1. Perf...
99 Honda Odyssey | P03042006 Pontiac Pursuit GT 2.4L - Fault Codes P0010 and P0-11: Causes and Solutions
My 2006 Pontiac Pursuit GT with a 2.4L engine is experiencing rough shifting through gears and noticeable drivability issues when transitioning between Park, Reverse, and Drive....
2006 Pontiac Pursuit GT 2.4L | P0010Practical 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.