

Diagnostics
U0100 Code: ECM/PCM Communication
In this Pulling Codes case, we document a U0100 code – a no communication issue with the PCM on a...
In this Pulling Codes case, we document a U0100 code – a no communication issue with the PCM on a...
In this month’s Pulling Codes case, Contributing Writer Carlton Banks addresses a direct injection fuel pressure code (P00C6-Fuel Rail Pressure...
A vehicle fails an emission test due to a series of codes, with misfire activity found on cylinders 2, 4,...
This article addresses a misfire code from a 1999 VW Passat. It will look at a plan of attack for...
Every once in a while you come across a vehicle with a P0420 code that bears mentioning. Using one of...
In the world of automotive module-to-module communication, Code U0100 can mimic a good guy/bad guy situation — the good guy...
This article will document code P0301 — Misfire Activity on Cylinder No. 1 — a code many of you have...
Pulling a P0135 Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) code means you're dealing with a possible oxygen...
Contributing writer Carlton Banks continues with his series on Advanced Misfire and Fuel Trim Analysis, using fuel trims and oxygen...
Carlton Banks documents the use of fuel trims and oxygen sensor behavior to determine if the misfire activity is ignition,...