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.
P0401 code on 96 Ford Taurus
Hi All, If anyone could help it would be appreciated. I have a 96 Ford Taurus, V6 3.0 24V OHC with a P0401 "EGR Flow Insufficient" that will not clear. I replaced the EGR valve....
96 Ford Taurus | P04012001 Chevy Tahoe P0336 Code: Why Engine Won't Start or Stay Running?
I own a 2001 Chevrolet Tahoe that fails to start or stalls immediately after starting. If it does start, the engine cuts off when I press the accelerator. After performing an au...
2001 Chevy Tahoe | P03361999 Chrysler Concord 3.2L P0340 and P0112 Codes: Causes, Diagnosis, and Fixes
My 1999 Chrysler Concord with a 3.2L engine and 105,000 miles has recently developed two OBD-II fault codes: P0340 (Camshaft Position Sensor) and P0112 (Intake Manifold Temperat...
1999 Chrysler Concord | P0112PO144 code for 1999 ford 150
I have a 1999 ford 150 4.2l thats saying PO144 code(bank 2 running lean). I've got a new fuel pump, fuel filter. New fuel injector assembly and the oil rings for the injectors....
1999 Ford 150 | P01442001 Ford Crown Victoria P0402 Code: EGR Excessive Flow - Diagnosis & Fix Guide
I own a 2001 Ford Crown Victoria LX (4.6L SOHC V8, single exhaust, 71,000 miles) and am currently experiencing a persistent 'Check Engine' light. The diagnostic trouble code rea...
2001 Crown Vic | P04021999 Oldsmobile Intrigue 3800 V6 with P0420 After Ignition Module Failure and Fuel Issues
I own a 1999 Oldsmobile Intrigue with a 3800 V6 engine, automatic transmission, and approximately 114,000 miles. Historically, this vehicle has been very reliable—never experien...
Intrigue | P04202001 Audi A6 2.7T Check Engine Light On After CA Smog Test (P1130 Code?)
My 2001 Audi A6 2.7T's check engine light came on several hours after passing a California smog test. I initially suspected that the testing process may have damaged a component...
Audi a6 | P1130VW Jetta 1999 Check Engine Light Blinking with Multiple Misfire Codes (P0300-P0303, P0131)
Hi there, I own a 1999 VW Jetta with automatic transmission and over 100,000 miles. Last night, the check engine light started blinking, and my car suddenly lost power when I p...
VW Jetta | P00002002 Ford Mustang P0401 Code: Exhaust Gas Recirculation Flow Insufficient - What Does It Mean and How to Fix?
My 2002 Ford Mustang with a 3.0L V6 engine has recently triggered the check engine light. After scanning the vehicle, I received the P0401 diagnostic trouble code: 'Exhaust Gas ...
2002 Ford Mustang | P04011996 Chrysler Sebring conv 2.4 P0340
can some one please help me with a problem with my 1996 Chrysler Sebring conv 2.4. While I'm driving at high way speeds my car gives me all the signs that it stalled engine lig...
1996 Chrysler Sebring Conv | P03402003 Dodge Ram 1500 5.7L Engine P0132 O2 Sensor Code: Diagnosis and Fixes
Hi everyone, I have a 2003 Dodge Ram 1500 with a 5.7L V8 engine and around 30,000 miles. It's showing a P0132 O2 sensor fault code. I've already replaced both oxygen sensors, bu...
03 dodge ram 1500 | P01321999 Kia Sportage P0422 and P0116 Codes: Check Engine Light, Gear Shifting Issues, and Sudden Acceleration
I own a 1999 Kia Sportage that has been displaying the check engine light. A scan reveals both P0422 (Exhaust Catalyst System Efficiency Below Threshold - Bank 2) and P0116 (Coo...
1999 Kia Sportage | P04221999 GMC Sierra 5.8L with P0300 Random Misfire: How to Diagnose and Fix Without Replacing All Coils
I own a 1999 GMC Sierra with a 5.8L engine that exhibits rough idle and poor running performance. The vehicle is displaying a P0300 diagnostic trouble code, indicating a random ...
99 GMC Sierra 5.8 | P03001999 Mazda 626 V6 Missfire Diagnosis: Codes P0400, P1131, P0174 - EGR, Intake Gasket, or Injector Issues?
My 1999 Mazda 626 V6 is experiencing a severe missfire on cylinders #2 and #6. After testing with four different diagnostic scanners, I received codes P0400 (Exhaust Pressure Se...
1999 Mazda 626 | P0174Practical 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.