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.
2004 Nissan Titan U1000 and U1001 Transmission Gear Shift Failure - Diagnosis and Solutions
I am experiencing a serious transmission issue with my 2004 Nissan Titan. The vehicle refuses to shift gears properly, and when I attempt to scan the system, it returns diagnost...
2004 Nissan Titan | U1000Nissan Altima 2003 - P0420, P1574, P0217, and P0730 Fault Codes After Overheating
My 2003 Nissan Altima has developed multiple OBD-II fault codes: P0420 (Catalyst System Efficiency Below Threshold), P1574 (ASC/Speed Sensor Issue), P0217 (Engine Over Temperatu...
Nissan Altima | P02171986 El Camino 2 digit code 41
1986 El Camino with a 350 engine Carbureted engine misses and has no power received a code 41 and removed the ignition module and had it tested at Auto zone it tested good. the...
1986 El Camino | P041099 Ford F150 5.4L Engine PO430 Code: Cat Converter Sensor Issue Explained
The check engine light came on today, and the diagnostic scan revealed a PO430 code. The scanner showed that sensor 2 on bank 2 has the same voltage reading as sensor 1 on bank ...
99 ford 150 | P0430P0122 OBD2 Code Still Appearing After Replacing Throttle Position Sensor on 1997 Oldsmobile Regency
After replacing the Throttle Position Sensor (TPS) on my 1997 Oldsmobile Regency, the P0122 code (Throttle Position Sensor Circuit Low Voltage) continues to appear. I'm seeking ...
Oldsmobile Regency | P01222012 Ram 1500 5.7 Hemi P0503 Code: Common Causes and Solutions
I'm experiencing a P0503 diagnostic trouble code on my 2012 Ram 1500 equipped with the 5.7L Hemi engine. What are the most common causes of this code? The P0503 code indicates a...
2012 ram 1500 | P05032009 Dodge Journey SE 2.4L V6 with 87,000 Miles: Resolved P2004, P2017, and P2008 OBD II Codes After Intake Manifold Repair
I own a 2009 Dodge Journey SE equipped with a 2.4L V6 engine, currently at 87,000 miles. I've been experiencing recurring OBD II diagnostic codes: P2004, P2017, and P2008. Code...
2009 Dodge Journey | P20042004 Jeep Grand Cherokee WJ 4.7L: P0172 and P0175 O2 Sensor Codes Causing Engine Stalling at Intersections
I've been experiencing a recurring engine stalling issue when approaching intersections, especially in coast mode. The problem is intermittent but noticeable—idle speed drops be...
2004 WJ 4.7 Grand Cherokee | P01722005 Chrysler 300C Transmission Failure: P0733, P2784, and P0743 Codes - Diagnosis and Repair Guidance
Hello, I own a 2005 Chrysler 300C with a Hemi engine and am experiencing serious transmission issues. Last week, while driving on the highway at around 65 mph, I exited onto a ...
2005 300c | P07332005 Kia Sorento Speedometer and Odometer Failure with P0503 Error - Where Is the Vehicle Speed Sensor Located?
My 2005 Kia Sorento is displaying a P0500 error code (Vehicle Speed Sensor Malfunction) during diagnostics. The speedometer and odometer are not working properly. I have a manua...
2005 Kia Sorento | P05032006 Chevy Aveo P0340 and P0016 Fault: Camshaft and Crankshaft Timing Issues
My 2006 Chevrolet Aveo has been experiencing recurring engine problems, recently showing diagnostic trouble codes P0340 and P0016. These codes relate to the camshaft and cranksh...
2006 Chevy Aveo | P0016P0446 Code Reappears in 2001 Chevrolet Impala LS 3.8L After Replacing Fuel Cap, Solenoids
I'm experiencing a recurring P0446 EVAP vent system fault code on my 2001 Chevrolet Impala LS with a 3.8L engine. I've already replaced the fuel cap, vent solenoid, and purge so...
2001 Chevrolet Impala LS | P04462002 Dodge Intrepid P0700 and P0840 Code: Transmission Sensor Issues and Diagnosis
My OBD2 scanner is showing codes P0700 and P0841 on my 2002 Dodge Intrepid R/T. The P0700 code was initially identified as a transmission input/output sensor issue, which I had ...
2002 Dodge Intrepid | P07002009 Pontiac Vibe - Diagnosing P0607 and P0353: Intermittent Loss of Power and Check Engine Light Issues
Hello, I'm experiencing intermittent issues with my 2009 Pontiac Vibe, including the appearance of two diagnostic trouble codes: P0607 and P0353. All three warning lights — Chec...
Pontiac Vibe | P0353Practical 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.