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.
2000 Toyota 4Runner P0420 Code: Diagnosis and Solutions for Catalytic Converter Issues
I recently encountered a P0420 diagnostic code on my 2000 Toyota 4Runner (V6, 4x4, manual transmission). After checking live data, the upstream oxygen sensor reads approximately...
2000 Toyota 4 Runner | P04202002 GM denali p0101, p0300, p0420, p0446, p0452
I installed a new fuel pump about 3 months ago. Wife said car started losing power about a week ago, progressively got worse, now has NO power,barely makes it up driveway.
2002 GM Denali | P0101P0134 and P0135 O2 Sensor Error on 2002 Chrysler Town & Country 3.3L Flex Fuel - Fix & Diagnosis Guide
Hi everyone, I'm new to this forum and found it through Google. I currently own a 2002 Chrysler Town & Country LX with a 3.3L flex-fuel engine and am experiencing recurring O2 s...
2002 Chrysler Town & Country | P01341997 Saturn SL2 OBDII P0341 Code: Camshaft Position Sensor Issue or Misfire Causes?
I own a 1997 Saturn SL2 DOHC model and have been experiencing difficulty starting the vehicle, especially in cold weather. Recently, the car has failed to start most of the time...
97 saturn sl2 | P03411997 Ford Escort Emissions Faults: P0136, P0140, P1443 Explained | O2 Sensor Replacement & Evaporative System Fix
I own a 1997 Ford Escort with a 2.0L engine and recently failed the Massachusetts State Inspection due to three emissions-related diagnostic trouble codes: P0136, P0140, and P14...
1997 Ford Escort | P21772001 Chevy Silverado 4.3L Misfire - Persistent Cylinder 4 Misfire Despite Full OEM Replacement of All Components
Experiencing a persistent misfire on cylinder 4 in my 2001 Chevrolet Silverado 4.3L engine. I have already replaced all major components including: - Spark plugs - Ignition wir...
2001 Chevy Silverado 4.3L | P0300P0420 Fault After Installing Catco Converter on 2001 Camry LE - Causes and Solutions
I own a 2001 Toyota Camry LE 4-cylinder, non-CA model with automatic transmission, having maintained it through dealer service for over 10 years and reaching 142,000 miles. The ...
2001 Camry | P04201997 Buick Lesabre Custom P0300 Code: Diagnosis and Solutions After Replacing All Ignition Components
I'm still struggling to resolve the P0300 code on my 1997 Buick Lesabre Custom. Despite replacing all ignition components—including spark plugs, wires, coil packs, ignition cont...
1997 Buick Lesabre Custom | P03002007 Suzuki XL-7 P0008 Code: Diagnosis and Repair Guide
The check engine light is on, and the diagnostic trouble code P0008 (Performance Bank 1) has been detected. The vehicle also exhibits a timing chain noise. I need clear guidance...
2007 Suzuki XL-7 | P00082000 Subaru Outback P0328 Knock Sensor Fault: Is Replacement Safe and Cost-Effective?
When the OBD-II diagnostic code P0328 appears on a 2000 Subaru Outback, it indicates a faulty knock sensor. Many owners wonder whether simply replacing the knock sensor is a saf...
2000 Subaru | P03282006 Lexus GS300 P0606 and C1201 Codes Reappearing After ECM/PCM Replacement
Hi everyone, I'm facing a recurring issue with my 2006 Lexus GS300 (GRS190 model) equipped with a 3GR V6 engine. The vehicle has accumulated approximately 92,000 km of mileage. ...
2006 Lexus GS300 | C12011996 S10 4.3L Engine Misfire with P1345 Code After Distributor Adjustment
I've found detailed information on this fault code, but my situation is quite confusing. My 1996 S10 4.3L engine was experiencing severe misfires and repeatedly throwing the P13...
1996 S10 | P13452003 Ford F-350 P0603 Fault Code: Causes and Fixes
My brother-in-law's 2003 Ford F-350 is displaying fault code P0603. What are the possible causes and solutions for this issue? The P0603 code indicates a problem with the engine...
2003 7.3 | P06032003 Ford F-350 7.3L Diesel Code P1274: Cylinder 4 High to Low Side Open - Possible Fixes & P1316 Injector Driver Module Explanation
My brother-in-law's 2003 Ford F-350 7.3L turbodiesel automatic truck is showing diagnostic code P1274, indicating a 'Cylinder No. 4 High to Low Side Open' fault. Additionally, i...
2003 7.3 | P12742006 Toyota Corolla PO339, PO606, PO607 Fault - Loss of Power and Transmission Noise
I need urgent help with my 2006 Toyota Corolla (45,000 miles) that has been showing OBD-II fault codes PO339, PO606, and PO607. The car experiences intermittent loss of power—wh...
2006 Toyota Corolla | P0336Land Rover LR3 P2135 Fault Code: Diagnosis and Solutions
I recently encountered a P2135 fault code on my 2006 Land Rover LR3. I'm new to this forum and unsure if I'm in the right section. The diagnostic tool indicates an electronic co...
Land Rover | P21351999 Jeep Intrepid P0700, P0715, P0730 Fault Codes - Transmission Won't Shift Out of Park
I have replaced both the input and output speed sensors on my 1999 Jeep Intrepid, but the transmission still won't shift out of park. All gear indicators (P, R, N, D, 1, 2, 3) r...
99 Intrepid | P0700Practical 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.