Traditional gasoline car fault

2001 GMC Sierra 1500 5.3L 4x4 O2 Sensor Voltage Issue: No Error Code at Operating Temperature

I own a 2001 GMC Sierra 1500 5.3L V8 4x4 Xcab and am experiencing inconsistent oxygen sensor readings. At operating temperature (650°F), I observe: - Post-catalyst Sensor 1: 0....

GMC | P2177

Ford Fusion 1.6 Duratec CCM Fault - I/M Readiness Not Complete

I'm experiencing an issue with my Ford Fusion 1.6 Duratec (benzine, manual transmission) Europe model. The Comprehensive Component Monitor (CCM) is not completing its self-check...

Ford Fusion | P2177

Ford Transit 2.3L Petrol Fuel System 1 Status OL-Fault: Erratic Idle and Stalling

I own a 2004 plate Ford Transit with a 2.3L petrol engine. The vehicle exhibits erratic idle behavior—engine vibrates and rocks before stalling. There are no stored fault codes ...

Ford Transit | P2177

Jeep Grand Cherokee 2000 4.7L - All Four O2 Sensors Show Same Fault (Codes 0135, 0141, 0155, 0161)

Hi everyone, I'm wondering if it's possible for all four oxygen (O2) sensors in my Jeep Grand Cherokee 2000 4.7L engine to show the same fault simultaneously. The diagnostic co...

Jeep Grand Cherokee | P2177

2000 Kia Sportage OBD2 Error Codes Explained: PO303, PO300, PO302, P1586, PO501, PO1115, PO1624

I am experiencing multiple OBD2 error codes on my 2000 Kia Sportage: PO303, PO300, PO3-02, P1586, PO501, PO1115, and PO1624. Can someone please explain what each code means and ...

2000 Kia Sportage | P2177

P0101, P0131, P0151 Trouble Codes - 2002 Chevrolet Trans Am 5.7L V8 6-Speed with Airflow Sensor Issues

I'm experiencing the following OBD-II trouble codes on my 2002 Chevrolet Trans Am 5.7L V8 6-speed model: - P0101: Mass Airflow (MAF) Sensor Range/Performance Issue - P0131: Oxy...

2002 Trans Am | P2177

1996 Grand Am 2.4L Engine P0134 O2 Sensor Code Reappears After Replacement

My 1996 Grand Am with a 2.4L engine is consistently throwing a P0134 oxygen sensor code for Bank 1, Sensor 1. I've replaced the sensor twice and cleared the code using my OBD-II...

96 Grand Am 2.4 | P2177

Ford Focus 2014 DTC Code 7E9 10 0A 43 04 08 05 08 7A Translation Help

Hi everyone, I'm looking for help interpreting the following DTC (Diagnostic Trouble Code) from a 2014 Ford Focus: DTC: 7E9 10 0A 43 06 08 05 08 7A Could anyone please explai...

Ford Focus | P2177

1995 Park Avenue OBD1 with OBD2 Connector: Fault Codes P1640 and P1970 Explained

Hello everyone, I own a 1995 Park Avenue, which is known to have an OBD1-based engine control module but includes an OBD2 connector. Recently, I've been encountering two diagnos...

95 Park Ave | P2177

High Long-Term Fuel Trims at Cruising Speed on 1998 5.7L Vortec — Diagnosis & Troubleshooting Tips

Hi everyone, thanks for the helpful insights—I've learned a lot from this thread. I'm currently troubleshooting a 1998 Chevrolet Z71 with a 5.7L Vortec engine (128,000 miles). ...

1998 5.7L Vortec | P2177

98 Kia Sportage OBD2 Codes List: PO304, PO440, PO451, PO107, P1614 - Car Dies at High Altitude & Won't Start

My 1998 Kia Sportage suddenly died while driving on the road. After that, it will not start and the check engine light remains constantly illuminated. I've already replaced the ...

98 KIA Sportage | P2177

1997 Ford Thunderbird 4.6L Engine Light On: PO171 & PO174 Codes, Vacuum Leak Suspected?

Hi there, My 1997 Ford Thunderbird 4.6L has recently developed a persistent 'Service Engine Soon' light. Initially, I was told the issue might be the Mass Airflow (MAF) sensor....

1997 Ford Thunderbird | P2177

How to Detect Airbag Deployment via OBD2 Codes in Ford and GM Pickups

Hi everyone, I'm part of a vehicle tracking company and we're looking to detect airbag deployment using OBD2 diagnostic codes. We currently collect DTCs (Diagnostic Trouble Code...

Air Bag | P2177

O2 Liberty 3.7L Engine: Injector Circuit Faults in Cylinders 2, 4, and 6

After an 8-month engine rebuild, a customer brings in their Jeep Liberty with a 3.7L engine exhibiting rough running and persistent fault codes for cylinders 2, 4, and 6 — all o...

Liberty 3.7 L | P2177

OBD2 Code B577E5T51071 Meaning for 1994 Mazda MX6 - How to Interpret and Fix

I own a 1994 Mazda MX6 and my OBD2 scanner is displaying the code B577E5T51071. What does this specific fault code mean? Is it related to engine performance, emissions, or anoth...

mazda mx6 | P2177

2001 Chevy Cavalier ABS System Fault: How to Diagnose and Fix C1222, C1226, C1233 Codes

My 2001 Chevrolet Cavalier is showing multiple dashboard warning lights — service, ABS, and traction control — all lighting up simultaneously. I've tried using a MaxiScan MS309 ...

2001 Chevy Cavalier | P2177

2001 Lincoln Town Car Running Rich - Check Engine Light On with Fuel Cap Code

I own a 2001 Lincoln Town Car that is running rich in both Bank 1 and Bank 2. The check engine light is currently on, specifically indicating a fuel cap issue. I have already re...

Lincoln Town Car | P2177

1997 Ford Ranger 4.0L Fuel Trim % Reading -100.0: Cause and Resolution

My 1997 Ford Ranger with a 4.0L engine shows all normal sensor readings, but the ST FTRM (%) values are consistently displaying -100.0. The truck runs and drives perfectly, with...

97 Ford Ranger | P2177