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.
2001 Nissan Altima P1447 and P0325 Check Engine Light Issue - How to Fix
Good morning, I recently purchased a 2001 Nissan Altima 2.4L with 140,000 miles for my daughter's first car. It's a reliable vehicle and runs well until she reports the check e...
2001 Altima | P1447P0440 Diagnostic for 2001 Chevy Pickup: How to Perform a Smoke Test and Required Tools
I have a 2001 Chevrolet Pickup extended cab with the dashboard warning light illuminated and a P0440 diagnostic code. I'm looking for clear guidance on how to perform a smoke te...
2001 Chevy Pickup | P04401997 Chevrolet C1500 4.3L Engine Fault Codes P0140, P0151, P0302 - Causes and Diagnosis
I own a 1997 Chevrolet C1500 with a 4.3L V6 engine. The vehicle is displaying three engine fault codes: P0140, P0151, and P0302. I'm trying to understand whether the first two c...
97 PU 4.3 | P0171Vauxhall Zafira 2.0DTI P0400 Code: Exhaust Gas Flow Issue & EGR Valve Diagnosis
Hi, I own a Vauxhall Zafira 2.0DTI (52 plate) and recently received a diagnostic code P0400 — 'Exhaust Gas Insufficient Flow Detected' — along with P0400 'Exhaust Gas Recirculat...
Vauxhall | P0400Ford Explorer 2005 P0193 Fault Code: Diagnosis and Repair Guide
I recently noticed the 'Service Engine Soon' light on my Ford Explorer 2005 dashboard, and the onboard diagnostic system has displayed fault code P0193. I'm looking for clear gu...
Ford Explorer | P01932000 Pontiac Grand Am P0412 Code After Engine Swap: Solenoid Missing in 2001 Alero
I own a 2000 Pontiac Grand Am with a 3.4L V6 engine. After reaching 180,000 miles, I replaced the entire powertrain unit — including the engine, transmission, and subframe gear ...
2000 Grand Am | P04122005 Chevrolet 3500 Pickup 8.1L OBD2 Fault Codes P0053 and P0134 - Bank 1 Sensor 1 Issues
Location of the oxygen sensor on a 2005 GM 3500 pickup truck? The oxygen sensor for Bank 1, Sensor 1 (B1S1) is located on the driver's side of the engine, near the exhaust manif...
3500 Chevy Pickup | P0053Hyundai Sonata 2012, 52,000 Miles: P0087 Fuel Rail Pressure Low - Hard Starting and Engine Light On
My friend's 2012 Hyundai Sonata (52,000 miles) has been displaying a P0087 fault code indicating low fuel rail pressure. This vehicle is equipped with a gasoline direct injectio...
Hyundai Sonata | P00871996 Chevrolet S-10 Check Engine Light: OBD2 Codes P0121, P0171, P0174 Explained
I'm experiencing a check engine light on my 1996 Chevrolet S-10 with engine code readings showing P0121, P0171, and P0174. The vehicle has a 2.2L inline-four engine with catalyt...
1996 S-10 | P01212003 Sunfire P0420 Code: MIL Light Off, Cat Replacement Cost & Diagnostics
My 2003 Sunfire (2.2L) has been showing a persistent P0420 diagnostic trouble code, but the Check Engine Light (MIL) has turned off and remained off for several days. I used a g...
03 Sunfire | P04202003 Toyota T&C Multiple OBD2 Codes: P0106, P0107, P0108, P0122, P1478, P1598 - Diagnosis and Fixes
I'm experiencing persistent OBD2 fault codes on my 2003 Toyota T&C: P0106, P0107, P0108, P0122, P1478, and P1598. All other codes clear after resetting the system, but these rem...
2003 T&C | P0106P1004 Fault: How to Locate and Repair the Short Running Valve in [Make] [Year] [Model] [Engine]
Where can I find the short running valve in my vehicle? And should I repair or replace it when encountering fault code P1004?
Short running valve | P1004Chevy Yukon P0135/P0327/P0332: Knock Sensor Issues and O2 Sensor Failure Diagnosis
My Chevy Yukon has recently developed multiple check engine light codes: P0135 (O2 sensor heater circuit malfunction), P0327 (front knock sensor low voltage), and P0332 (rear kn...
chevy yukon | P01352006 Dodge Charger 2.7L V6 P0206 Fault: PCM Not Sending Negative Ground Pulse?
Hi, I'm experiencing an issue with my 2006 Dodge Charger 2.7L V6 engine. My OBD2 scanner detected a P0206 code, indicating a circuit fault related to fuel injector #6. I replace...
dodge charger | P020699 Honda Accord p0122 ideling at 2000 RPM.
I have a 99 Honda Accord that I replace the TPS last week and now the car is ideling at 2000 RPM. I put a scan and the code is PO122. I need some help please.
99 Honda Accord | P01222001 Jeep Cherokee Sport P0704 Code: How to Fix Transmission Clutch Solenoid Circuit Issue Quickly
I currently have a P0704 diagnostic trouble code on my 2001 Jeep Cherokee Sport with a 4.0L 6-cylinder engine and automatic transmission. I need to resolve this issue promptly i...
2001 Jeep Cherokee Sport | P0704Practical 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.