Air Filter And Fuel Trim Diagnostics
The modern engine measures two things extremely well, the amount of air going into the combustion chamber with the mass airflow sensor (MAF), and the byproducts that are generated by the combustion event with the oxygen sensor. These measurements allow the engine’s computer to put the right amount of fuel and spark into the cylinder to give the most efficient and cleanest combustion event.
Air Filters and Fuel Trims
Modern engines rely on precise airflow and oxygen sensor data for optimal performance.
High Pressure Direct Injection Fuel Systems
The main destroyer of high-pressure fuel pumps is a lack of oil changes.
Today’s Fuel Pressure Diagnostics
Direct injection pressure is measured with sensors, and you’ll need a scan tool to measure the signals
Fuel Trims
To gain a better perspective on fuel trims, think about how “analog” vehicles dealt with changing fuel and air mixtures.
Fuel Pressure Diagnostic Service
Use a scan tool that can look at special direct fuel injection parameters and perform bidirectional tests.
Drivability Issues Fuel Trim Diagnostics
No code diagnostics are some of the most challenging drivability issues.
VIDEO: Lubricating Plastic, Rubber And Metal Under The Hood
Choosing a lubricant that will protect under elevated temperatures. This video is sponsored by WD-40 Brand.
Driveability Diagnostics And Direct Injection
Direct injection can be a diagnostic challenge, but with the right foundation, problems can be solved profitably.
LTF And STF Fuel Trim Feedback Loops
How to understand rich, lean and somewhere in between.
