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.
1997 Honda Civic P1336 Code: What It Means and How to Fix It
I'm experiencing a P1336 diagnostic code on my 1997 Honda Civic, which reads 'Manufacturer Control Ignition System or Misfire'. The car runs smoothly with no noticeable misfires...
1997 Honda Civic | P13361996 Blazer P0700 Code: Causes, Diagnosis, and What to Do Next
I'm experiencing a P0700 general malfunction code on my 1996 Chevrolet Blazer. The vehicle is showing this error but I don't know where to begin troubleshooting. Can anyone prov...
96 Blazer | P07002001 Blazer P0452 Code: Evaporative Emission System Pressure Sensor/Switch Low Input - Diagnosis and Fix
I'm experiencing a P0452 diagnostic code on my 2001 Blazer, which indicates a low input signal from the Evaporative Emission System Pressure Sensor or Switch. Is this a common i...
2001 Blazer | P04521997 Ford Ranger V6 4L: P0171 and P0175 O2 Sensor Codes with No Feedback from All Six Sensors
Hello, I recently purchased a 1997 Ford Ranger with a V6 4.0L engine, which started showing up two diagnostic trouble codes: P0171 and P0174. After using an AutoEnginuity OBD2 ...
97 Ford Ranger | P0171P0171 and P0174 followed by P0300 - Diagnosis and Repair for 2000 Isuzu Rodeo
The 2000 Isuzu Rodeo is experiencing trouble codes P0171, P0174, and subsequently P0300. These codes indicate lean air mixture in the fuel system (P0171 and P0170) and random mi...
2000 Isuzu Rodeo | P01711998 Chevy Tahoe 5.7L P0300 Random Misfire: Causes, Diagnosis & Fixes
Vehicle: 1998 Chevrolet Tahoe 4x4, 5.7L V8 engine, 121,000 miles, automatic transmission. The vehicle has recently started exhibiting intermittent stalling and stumbling during...
98 Tahoe 5.7L | P03001999 Mercedes E250 OBDII Code P1406: Diagnosis and Fix for Lean Bank Condition
I recently encountered a persistent OBDII diagnostic code P1406 on my 1999 Mercedes-Benz E250. Two years ago, I noticed black smoke coming from the exhaust, which led me to susp...
1999 E250 | P1406P0135 and P0155 Diagnostic Guide for Volvo S80 T6 - How to Fix Oxygen Sensor Faults
Great information for those starting their diagnosis! This issue is commonly encountered in Volvo S80 T6 models. The fault codes P0135 and P0155 indicate problems with the oxyge...
Volvo S80T6 | P01352001 Volvo S40 P0602 and P0700 Trouble Codes: Causes, DIY Fixes, and OBD-II Diagnosis
My check engine light came on recently in my 2001 Volvo S40, triggering trouble codes P0602 and P0700. I've already inspected all wiring connections and believe the system is ot...
2001 Volvo S40 | P0602P0441 EVAP Purge Flow Fault on 2002 Chrysler T&C - Diagnosis and Fixes
I own a 2002 Chrysler T&C Limited with a 3.8L engine and 72,000 miles. Recently, the vehicle triggered a P0441 diagnostic code indicating an EVAP emission control system purge f...
2002 Chrysler T&C | P0441P0400 Fault Diagnosis: 2000 Nissan Maxima EGR System and Carbon Buildup Issues
I recently performed a quick diagnostic scan on a 2000 Nissan Maxima before leaving today. The vehicle is showing a P0400 code, which indicates an issue with the Exhaust Gas Rec...
2000 Nissan Maxima | P0400P0125 Fault in 2001 Ford Ranger: Insufficient Coolant Temperature for Closed Loop Fuel Control
I'm experiencing persistent symptoms related to the P0125 diagnostic trouble code in my 2001 Ford Ranger: - P0125: Insufficient Coolant Temperature for Closed Loop Fuel Control...
2001 Ford Ranger | P01251997 camaro p1651, p1652
First of all if your scanner is showing that the fans are commanded OFF by the PCM, then the PCM doesn't see the need for them. Now, if the PCM commanded the fans ON and they ...
1997 camaro | P1651P1126 Diagnostic and Symptoms in 2000 Nissan Altima (105,500 Miles)
I'm experiencing a P1126 fault code in my 2000 Nissan Altima with 105,500 miles. I recently replaced the Throttle Position Sensor (TPS) and air filter as recommended by AutoZone...
2000 Nissan Altima | P1126P1742 and P0743 Fault Diagnosis: Mazda 626 (CD4E) Automatic Transmission with TCC Solenoid Issues
I'm seeking help diagnosing persistent transmission issues on my 1999 Mazda 626 (4-cylinder, CD4E automatic transmission). After installing a remanufactured transmission, I beg...
Mazda 626 | P07432002 Chrysler Intrepid Check Engine Light with P2302-P2317 Ignition Coil Secondary Codes: Diagnosis and Repair Guide
My daughter recently brought home a 2002 Chrysler Intrepid with a 2.7L engine. As someone who enjoys working on older vehicles, I'm trying to diagnose the issue myself — but thi...
2002 Chrysler Intrepid | P6000Practical 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.