Deciphering Engine Misfire Codes
When the fuel/air mixture ignites, many factors must be met to pass a misfire monitor.
Today’s Fuel Pressure Diagnostics
Direct injection pressure is measured with sensors, and you’ll need a scan tool to measure the signals
Oxygen Sensors And Catalyst Efficiency
Newer air/fuel ratio or wide-band sensors can detect a wide range of fuel conditions.
Fuel Pump Controls For Pressure and Volume
These systems are very efficient and are able to get the right amount of fuel into the cylinder so no fuel is wasted.
7 Reasons Direct-Injection High-Pressure Fuel Pumps Fail
High-pressure fuel pumps can malfunction and/or fail due to a number of factors.
Fuel Pressure And Volume
The fuel pressure sensor usually has three wires and operates on five volts. What controls the speed of the fuel pump?
VIDEO: Diagnosing Intermittent Fuel Pressure Issues
Andrew Markel discusses fuel pressure, and the different ways to diagnose issues without using a pressure gauge. Sponsored by Auto Value and Bumper to Bumper.
Diagnostic Dilemma: The Case of the Missing Code
When doing mobile diagnostic work, no-code stalling complaints are a major part of your agenda. In most cases, the client shop is simply too busy to duplicate the failure or, in some cases, a long test drive will yield nothing in the way of useful scan tool data. With many no-code stalls, all you’re going
7 Reasons Direct-Injection High-Pressure Fuel Pumps Fail
Don’t be scared by direct fuel injection diagnostics. In theory, these systems operate on the same principles as port fuel injection, but direct injection can inject more precise amounts of fuel into the combustion chamber so the engine can run leaner and more efficient. The key to direct injection is a high-pressure fuel pump. This
