Traditional gasoline car fault

2000 GMC Sonoma ZR2 P0101, P0131, P0143, P0151, P0155 - Cold Start Miss and Fluctuating Codes

I own a 2000 GMC Sonoma ZR2 with 4x4, automatic transmission, and a 4.3L V6 engine. After a complete engine and transmission rebuild, the vehicle initially ran well except for a...

2000 Sonoma | P0101

Honda CR-V 2002 DTC P0131: Backfiring and Oxygen Sensor Reading 4.08V

Hi, I'm experiencing an issue with my 2002 Honda CR-V. When the engine is running and the vehicle comes to a stop, there is no vibration. However, when I press the accelerator p...

Honda CR-V | P0131

2002 Chevy Blazer P0131 P0137 P0151 O2 Sensor Faults - Starting Issues and Power Loss

I own a 2002 Chevrolet Blazer with persistent trouble codes P0131, P0137, and P0151—all related to oxygen (O2) sensors. The vehicle occasionally fails to start and experiences s...

02 Chevy Blazer | P0131

2001 Chevy Tahoe 5.3L Power Loss After Tune-Up: P0151 and P0131 O2 Sensor Codes

Hello everyone, this is my first post on the forum — I'm a DIYer who's completely stumped by an issue I've been experiencing with my 2001 Chevrolet Tahoe equipped with the 5.3L ...

2001 Tahoe 5.3L | P0131

2003 Chevrolet Astro Van P0101, P0131, P0137, P0151 - O2 Sensor and MAF Issues with Emissions Test Concern

The service engine light has activated on my 2003 Chevrolet Astro van with a 4.3L V6 engine (160,000 miles). The vehicle continues to run smoothly, but diagnostic trouble codes ...

2003 Chevrolet Astro van | P0101

2000 Buick Regal P0131 and P0137 O2 Sensor Faults Causing Poor High-Speed Acceleration and Fuel Efficiency

I recently purchased a 2000 Buick Regal with the V6 3800 SII engine, which had only 74,000 miles on it over its 14-year lifespan. The initial test drive went smoothly, and the c...

2000 Regal | P0131

2000 Olds Silhouette P0131, P0137, P0480, P0742: Diagnosis and Repair Steps for OBD-II Codes

I own a 2000 Olds Silhouette GLS V6 with multiple OBD-II diagnostic codes: P0131, P0137, P0480, and P0742. I've already cleaned the MAF sensor, sealed a vacuum leak at the PCV v...

2000 Olds Silhouette | P0131

2004 GMC Sierra P0131, P138, P171, P1133 - Upper Plenum Needed? Diagnosis Question

I recently had a diagnostic check on my 2004 GMC Sierra, and the shop reported several trouble codes: P0131, P138, P171, and P1130. They advised replacing the upper plenum as pa...

2004 GMC Sierra | P0131

P0134 After ECU Replacement in 1998 Hyundai Elantra - O2 Sensor Circuit No Activity Detected

Hi everyone, I'm having a persistent issue with my 1998 Hyundai Elantra (VIN: KMHJW34M0WU). The problem started with black smoke from the exhaust and noticeable lack of power. A...

Elantra | P0131

P0131 Fault Diagnosis on 1995 GMC Jimmy 4.3L V6 with Intermittent Miss-Fire and Power Loss

Hi everyone, this is my first post here — I'm eager to improve my vehicle diagnostics skills through community input. I own a 1995 GMC Jimmy with a 4.3L V6 engine (W-code), 4x4...

1995 GMC Jimmy | P0131

2007 Mazda5 Multiple OBD2 Codes P2196, P2-187, P0455, P0131 - How to Diagnose and Fix Without Dealership Costs

My 2007 Mazda5 has been acting up recently — it won't start unless I fully depress the accelerator pedal while cranking. Once it starts, it runs roughly for a few seconds before...

2007 Mazda5 | P0131

2005 Chevy Tahoe P0300 P0171 P0131

I have a 2005 chevy tahoe that started showing these three codes. The check engine light comes on after the tahoe has warmed up and I have shut the engine off, and started it b...

2005 Chevy Tahoe | P0131

1996 GMC Yukon P0151 P0131 P0300 - Engine Dies on Acceleration, Flooding, and Pulsating While Driving

My 1996 GMC Yukon is showing fault codes P0151, P0131, and P0300. When I accelerate, the engine floods and dies. While driving, it suddenly shuts off and requires me to stop and...

1996 GMC Yukon | P0131

2000 VW Passat P0300 Misfire & Multiple OBD-II Codes: P1131, P1411, P1423, P1569, P1603 Diagnosis and DIY Fix Guide

Vehicle: 2000 VW Passat GLX V6, 5-speed manual (150,000 miles), Engine Code ATQ Symptoms: - Persistent engine misfires (indicated by check engine light and rough idle) - ABS wa...

2000 VW Passat | P0131

2004 Mazda MPV P0131 OBD Code: Identifying and Replacing the Vacuum Hose Behind the Engine

My 2004 Mazda MPV is showing a P0131 OBD-II diagnostic code. I've noticed a vacuum leak coming from a large hose located behind and at the top of the engine. Can anyone confirm ...

2004 Mazda MPV | P0131

1998 Chevrolet Camaro LS1: P0131 & P0151 Lean Codes During Hard Acceleration - Diagnosis and Fixes

I recently purchased a 1998 Chevrolet Camaro with an LS1 5.7L V8, six-speed manual transmission, and 82,000 miles on the odometer to use as my daily driver. I'm currently experi...

1998 Camaro | P0131