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.
1998 Dodge Neon P0117 and P0118: Engine Temperature Sensor Issue with Starting Problems and Gauge Failure
Hi everyone, I'm looking for help diagnosing a persistent issue on my 1998 Dodge Neon SOHC. I've been experiencing trouble with the engine temperature sensor and related fault c...
1998 Dodge Neon | P0117P0441 EVAP Code and VSC Light On in 2008 Lexus LX570 - How to Fix Without Leak Detection?
Hi everyone, I'm currently dealing with a 2008 Lexus LX570 (automatic transmission) that recently triggered the Evaporative Emission Control system warning light, along with the...
Lexus LX570 | P0441P0453 Fault in 1999 Mercury Cougar: Diagnosing Fuel Tank Pressure Sensor Issues
My 1999 Mercury Cougar is displaying Diagnostic Trouble Code P0453. I have already replaced both the Pressure Feedback Sensor and the Vacuum Regulator Sensor, but the code persi...
Mercury 1999 Cougar | P0453Ford Focus 1.8 TDDI Fault Codes P0404 and P1930: Symptoms and Diagnosis
I recently diagnosed a Ford Focus 1.8 TDDI with two persistent fault codes: P0404 (EGR System Malfunction) and P1930 (Fuel Additive Issue). The vehicle exhibits symptoms includi...
Focus TD | P0404P0171 Fault on 2002 Nissan Maxima: How to Fix System Too Lean Bank 1
I'm experiencing a P0171 code (System Too Lean Bank 1) on my 2002 Nissan Maxima. My husband and I have already cleaned the MAF sensor and inspected all fuel and vacuum lines. We...
2002 Nissan Maxima | P01711999 Honda Civic Check Engine Light On with P0135 Code: How to Troubleshoot O2 Sensor and Fuse Issues
Hi, I own a 1999 Honda Civic EX and recently the check engine light has come on. I replaced the upstream oxygen sensor myself about two years ago, and I recently changed it agai...
1999 Honda Civic | P0135P0300 OBD2 Code in 2002 Chevrolet Avalanche with 5.3L V8 Engine
I own a 2002 Chevrolet Avalanche equipped with a 5.3L V8 engine. Two months ago, it was repaired at a shop for two weeks after they discovered a wire causing the theft deterrent...
chevy avalanche | P030002 Silverado P0171/174 New MAF Installed -No start
I have a 2002 Silverado with 5.3 (Non-flex) that start to cough and buck the truck late last week.When driving see to be in the 30-40 speed range. Started to troubleshoot Satur...
Silverado | P0171OBD2 Code P0448 Diagnosis and Repair for 2006 Nissan Sentra 1.8S
I recently diagnosed my 2006 Nissan Sentra 1.8S after the check engine light came on. The OBD2 scan revealed error code P0448: Evaporative Emission Control System Vent Control C...
06 Nissan Sentra 1.8s | P04482002 Dodge Sebring 2.7L Engine P0205 Code: Heat-Related Injector Circuit Fault in Cylinder 5
I have a 2002 Dodge Sebring convertible with a 2.7L engine, currently at 107,000 miles. The vehicle has been regularly maintained, including spark plug replacement at 90,000 mil...
Sebring 2.7 | P0205P0121 Throttle Position Sensor Issue on 2004 Hyundai Sonata 2.4L A/T - Idle Surges in Park/Neutral
I recently encountered a persistent issue on my friend's 2004 Hyundai Sonata 2.4L automatic transmission vehicle (198k miles). The car exhibits an idle surge between 600-1500 RP...
2004 Hyundai Sonata | P012198 VW Jetta MK3 P0722 & P0715 Fault Codes: Transmission Gear Shift Issue in Drive (D) - Fix & Parts Location
I own a 1999 VW Jetta Wolfsburg MK3 with a 2.0L automatic transmission. I've been experiencing persistent transmission issues, and the onboard diagnostic system has logged two t...
98 VW | P0715P0456 Code on 2002 Dodge Neon: Diagnosing EVAP System Issues at Home
Over the past few months, my 2002 Dodge Neon has been displaying trouble codes P0456, P0455, and P0442. I recently replaced the gas cap, which was originally OEM, as an aftermar...
2002 Dodge Neon | P04562003 Ford F250 6.0L Engine P102 P113 P404 P4-05 P2290 Fault Codes - Hard to Start, Diagnosis Help Needed
My 2003 Ford F250 6.0L diesel truck died on the freeway and was towed home. After scanning, I received the following diagnostic codes: P102, P113, P404, P405, and P2290. I've al...
2003 ford 6.0 f250 | P22902003 Chrysler Town & Country 3.3L Engine Code P0465: How to Diagnose and Fix at Home
I'm trying to fix the P0465 diagnostic code on my 2003 Chrysler Town & Country with a 3.3L engine without taking it to a mechanic. I've heard this issue isn't extremely serious,...
2003 Chrysler Town & Country | P04652002 Pontiac Grand Prix OBD2 Code P0404: How to Fix Poor Power on Hills and Lean Running Symptoms
My 2002 Pontiac Grand Prix is experiencing severe loss of power when climbing hills or accelerating. I've already replaced the EGR valve, ignition control module, muffler, air f...
2002 Pontiac Grand Prix | P04041999 Chevrolet Suburban 5.7L - P0304 Cylinder 4 Misfire Diagnosis and Solutions
I recently purchased a 1999 Chevrolet Suburban with a 5.7L V8 engine. The vehicle was originally sold with check engine light off, and the codes were cleared. However, during a ...
1999 chevrolet suburban | P03041998 Dodge Stratus 2.4L Base Model: Fixing P0123 and P1297 with Rough Idle and Stalling Issues
My 1998 Dodge Stratus 2.4L base model has been experiencing worsening idle problems for several weeks. The car now stalls frequently, especially during stop-and-go traffic or wh...
1998 Dodge Stratus 2.4L base model | P01232003 Chevrolet Silverado 1500 4.3L V6: P0172 and P0300 Codes - Engine Stumbles, Shakes at High Speed
I own a 2003 Chevrolet Silverado 1500 with a 4.3L V6 engine and automatic transmission. The OBDII check engine light activated while I was driving at 35-40 mph. After that, the ...
2003 Silverado 1500 | P0172Practical 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.