Traditional gasoline car fault

2011 Chevrolet Cruze P0017, P0016, P0171, P1101 - Fault Codes After Replacing MAF and Timing Sensors

I'm experiencing four diagnostic trouble codes: P0017, P0016, P0171, and P1101 on my 2011 Chevrolet Cruze. I have already replaced the Mass Air Flow (MAF) sensor, both camshaft ...

2011 Chevy Cruise | P0016

1999 Ford Ranger P0171 OBD2 Code: Causes and Solutions After MAF and Fuel Pump Replacement

I recently received a diagnostic code P0171 on my 1999 Ford Ranger with a 4-cylinder engine. The vehicle has less than 60-000 miles on the odometer. I have already replaced both...

1999 Ford Ranger | P0171

Open circuit code passes NOID light test

The only code showing now is P0508 idle air system circuit low. I still have the intake plenum unbolted ,so maybe this is why? When I back probed the injector 6 I got 10.8 volts...

Unknown | P0171

Lexus ES300 2007 - Fault Codes P2195, P2238, P0171 After Emissions Inspection

The check engine light (CEL) was not on until after the vehicle underwent an emissions inspection in Massachusetts. Upon leaving the garage, the CEL illuminated. A basic OBD2 sc...

Lexus ES300 | P0171

2004 Ford F15-0 STX 4.6L V8 Throws Multiple Codes (PO174, PO308, PO316) - What Could Be Causing This?

I own a 2004 Ford F150 STX with a 4.6L V8 engine that began running poorly last week. After connecting a OBD-II code reader, I received the following diagnostic trouble codes: P...

2004 F150 | P0171

SLK 200 (R171): P0130, P0171, and P0036 Codes Reappearing Despite Diagnostic Checks

Hello, Thank you for this website — it is by far the most accurate and comprehensive resource available for OBD-related information. My name is Jean-Christophe, and I own a 20...

SLK 200 (R171) | P0036

1999 Ford Ranger P0171, P0174 and P0442 Codes: Intake Vacuum Leak or Evaporative System Issue?

Can a P0442 code cause P0171 and P0174? I'm assuming that with both lean bank codes present, it indicates an intake system issue. However, I want to confirm whether the P0442 (e...

99 ford ranger | P0171

P0171 Diagnostic Issue in 2010 GMC Terrain SLE: Carbon Buildup vs. Intake Manifold Cleaning

Good morning, I recently had a diagnostic session at a dealership for my 2010 GMC Terrain SLE, and I'm sharing the details here for clarity and community insight. I attempted ...

2010 GMC Terrain SLE | P0171

P0171 Fault Code Diagnosis: 2010 GMC Terrain SLE - Lean Mix Ratio Analysis

The engine's lean condition is indicated by a lambda (LTFT) value of 38%, which is stored in the vehicle's memory. The Stoichiometric Fuel Trim (STFT) appears normal at idle, bu...

2010 GMC Terrain SLE | P0171

P0171 - 2010 GMC Terrain SLE

Good morning, I bought a 2010 GMC Terrain several years ago and due to the oil consumption issue, the engine was replaced about 2 years ago, so I have a new/refurbished engine i...

2010 GMC Terrain SLE | P0171

2006 Ford Taurus P0174, P0420, P0171, P0316 Diagnosis and Repair Guide

My girlfriend's daughter drives a 2006 Ford Taurus with 86,000 miles. The vehicle is currently displaying active OBD2 diagnostic codes: P0174 (Rich mixture on bank 2), P0420 (Ca...

2006 Ford Taurus | P0171

2008 Acura RDX OBD Codes P0324, P0294, P0374, P0377, P0378: Fix for Check Oxygen Sensor & SH-AWD Light Issues

Hello everyone! I'm reaching out for help with my 2008 Acura RDX. My vehicle's onboard diagnostic system is showing the following fault codes: - ENG 324 - METER 294 - METER 374 ...

Acura RDX 2008 | P0136

Nissan Micra K11 1.0L Petrol 2001 - P0171 and P0420 Fault Codes Explained

Hi, I own a 2001 Nissan Micra K11 1.0L petrol engine, and I'm currently experiencing two diagnostic trouble codes: P0171 (Rich Fuel Mix in Bank 1) and P042-20 (Catalyst System ...

nissan micra k11 | P0171

2007 Chevrolet Equinox P0171 Code: Persistent Check Engine Light and Hard Start Issue

I own a 2007 Chevrolet Equinox with 175,000 miles that has been running smoothly but now shows a persistent P0171 code and a constantly illuminated check engine light. I've alre...

Chevy Equinox | P0171

Oxygen Sensor 2 Bank 1 Replacement Still Shows Short Term Fuel Trim: NaN%? - Chevrolet Orlando 2012

Hi everyone, I own a 2012 Chevrolet Orlando and recently replaced the Oxygen Sensor 2 Bank 1 with a new one. After completing the replacement, I used OBD2 BlueDriver to scan th...

Unknown | P0171

2007 Chevrolet Impala LTZ P0101, P0171, P0300 Fault Codes - Engine Won't Run or Accelerate

My daughter's 2007 Chevrolet Impala LTZ recently had a new engine installed. After the replacement, the vehicle began displaying multiple diagnostic trouble codes: P0171 (System...

Impala LTZ | P0101