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.
1999 Plymouth Breeze P0340 Fault: Camshaft Position Sensor or Timing Issue?
I'm experiencing a P0340 diagnostic code on my 1999 Plymouth Breeze. The car starts and runs fine under normal conditions, but I notice rough starting—sometimes requiring multip...
1999 Plymouth Breeze | P0340PO715 Fault Code in Honda Odyssey: Speed Sensor Issue and Solutions
The OBD2 fault code PO715 indicates a problem with the Vehicle Speed Sensor (VSS). I replaced the sensor with a new one, but the warning light remains on. Despite this, the vehi...
Honda Odyssey | P07151999 GMC Yukon P0154, P0420, P1153 Trouble: O2 Sensor & Catalytic Converter Issues
Vehicle History: The check engine light has come on multiple times over the past year and was fixed twice. Each time, it returned shortly after, so I have stopped resetting the ...
1999 GMC YUKON | P01541996 Toyota Corolla P0125 Fault: Causes, Diagnosis & O2 Sensor Wiring Details
The P0125 diagnostic trouble code on a 1996 Toyota Corolla indicates an insufficient coolant temperature to enter closed-loop fuel control. Common causes include: - A faulty co...
1996 Toyota Corolla | P0125BMW M3 P1188 & P1189 Fault Code: Idle Rich Condition, Open Loop O2 Sensor Behavior and Fuel Trim Issues
I own a SC'd BMW M3 and am currently experiencing persistent fault codes P1188 and P1189. At idle, my Stoichiometric Fuel Trims (STFTs) reach as low as -28%, indicating a rich c...
BMW | P11881999 Subaru Legacy GT (2.5L) OBD-II P0325 Code: Diagnosis, Fix & Emissions Test Tips
My 1999 Subaru Legacy GT with a 2.5L engine has recently developed an intermittent Check Engine Light (CEL), now consistently showing OBD-II fault code P0325. The car has been m...
1999 Subaru Legacy GT (2.5L) | P03252000 Chevy Express P0137 and P0452 Fault Codes: EVAP Sensor, Fuel Pressure, and Running Rich Issues
My 2000 Chevrolet Express is displaying fault codes P0137 and P0459. The P0452 code indicates a low voltage signal from the evaporative (EVAP) pressure sensor located in the fue...
2000 Chevy Express | P01371996 Dodge Grand Caravan ES P0340 and SES Code 54: Intermittent Stalling and Camshaft Sensor Issues
Hello, I'm new to this forum, so thank you for the community support. I own a 1996 Dodge Grand Caravan ES with a 3.8L V6 engine and approximately 90,800 miles. Over the past f...
1996 Dodge Grand Caravan ES | P03401996 Dodge Ram Van P0132 O2 Sensor Trouble Code: Diagnosis and Fixes
I've been experiencing misfires in my 1996 Dodge Ram Van, which led me to replace the spark plugs, wires, cap, rotor, and air filter. After these changes, the vehicle ran smooth...
1996 Dodge Ram Van | P0132P1582 OBD2 Code on 1998 VW Jetta: Causes, Fixes, and DIY Solutions
I recently purchased a 1998 VW Jetta about a week ago, and shortly after ownership, the vehicle displayed the P1582 OBD2 diagnostic code. I've tried clearing the code using an O...
98 VW Jetta | P15821999 Chevrolet Metro P0455 Code: Fuel Vapor Leak Detected Despite Smoke Test and New OEM Gas Cap
My 1999 Chevrolet Metro has been experiencing the same issue for over a year, consistently showing OBD2 fault code P0455. After failing my California smog check, I enrolled in t...
1999 Chevrolet Metro | P04552000 GMC 6.5L Diesel 4x4 - Fault Codes P0272, P0380, P1216, P0238, and P0251: Cylinder 4 Contribution/Balance Issue & Loud Intake Noise
My 2000 GMC 6.5L Diesel 4x4 is showing multiple fault codes including P0272 (Cylinder 4 Contribution/Balance), P0380, P1216, P0238, and P0250. The vehicle now makes a loud noise...
2000 GMC 6.5l Diesel 4x4 | P02382003 Chrysler Hemi PO132 Code: Only Appears at Idle on Cold Starts, Not During Driving
I'm experiencing a persistent issue with my 2003 Chrysler Hemi. The check engine light comes on exclusively at idle and only during cold or medium starts—never when the engine i...
03 HEMI | P01322001 Dodge Ram 1500 4x4 Check Engine Light On with P0601 Error Code
I own a 2001 Dodge Ram 1500 4x4 that I purchased in October 2007. It has never had any issues prior to two days ago. Suddenly, the check engine light came on. When I cycle the k...
2001 Dodge Ram | P0601P0171, P0300, P0306 Faults in 1997 Pontiac Grand Prix GTP with Supercharger: Symptoms After 15-Minute Drive Cycle
After purchasing the 1997 Pontiac Grand Prix GTP, I began experiencing recurring engine issues while driving home. The vehicle exhibits symptoms including loss of power, knockin...
97 Pontiac Grand Prix GTP | P0171P0303 Diagnostic and Solutions for 1997 Ford Expedition
I'm experiencing a P0303 fault code on my 1997 Ford Expedition. I've already replaced all spark plugs, ignition wires, the coil pack, and the fuel injector for cylinder #3. Desp...
1997 Expedition | P03032004 Jetta TDI P0726 Fault: Engine Won't Start with Glow Plug Flash and Check Engine Light
My 2004 Jetta TDI experiences a recurring issue where it turns over but fails to start, accompanied by a flashing glow plug light during cranking. After the attempt, the check e...
04 Jetta TDI | P07262001 Oldsmobile Alero P0420 Code: Persistent Hesitation After Multiple Repairs
I've been struggling with a recurring P0420 code on my 2001 Oldsmobile Alero for several months. The vehicle initially hesitates during acceleration, and after researching commo...
2000 Oldsmobile Alero | P04202001 Dodge Ram 1500 P1687 Code: No Bus Error, Intermittent Starting and Misfiring Issues
I own a 2001 Dodge Ram 1500 4x4 with a 5.2L engine that is experiencing intermittent starting problems. The truck displays 'no bus' on the odometer when attempting to start, and...
2001 Dodge Ram 1500 | P16872002 Ford Windstar P0171 and P0174 Diagnosis: Lean Mixtures, Vacuum Leak, MAF Sensor Issues
I've completed the TSB for intake gasket replacement, but it's not resolving my issue. I'm now completely stuck trying to diagnose this. When driving, the engine produces a whin...
2002 ford windstar | P0171Practical 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.