Long-Term Fuel Trims and Filters (VIDEO)
Long-term fuel filters need to be watched and maintained. This video is sponsored by Auto Value & Bumper To Bumper.
Not Sure That Air Filter Needs To Be Replaced? Check The Fuel Trim
The kicker with trying to diagnose whether an air filter is affecting performance is to see if the long-term or short-term fuel trims have changed.
VIDEO: Where Have The Fuel Pump Filters Gone?
Andrew Markel discusses how to diagnose a fuel pump, and the importance of replacing the entire module if the pump is failing.
Fuel Pressure Diagnostic Service
Use a scan tool that can look at special direct fuel injection parameters and perform bidirectional tests.
How Extended Interval Oil Filters Have Improved
Over time, the oil filter can collect enough contaminants to become restricted.
Fuel Pressure Diagnostics
Direct injection pressure is measured with sensors, and the signals are used to determine pump speed and/or volume.
High Pressure Direct Injection Fuel Systems
The main destroyer of high-pressure fuel pumps is a lack of oil changes.
Managing (DPF) Diesel Particulate Filter Regeneration Cycles
The DPF is designed to store the soot and ash, to later burn them off during a regeneration cycle.
Diesel Air Filter Replacement
Here’s some diesel air filter replacement advice in order to keep these vehicles running as intended.
Fuel Trims
To gain a better perspective on fuel trims, think about how “analog” vehicles dealt with changing fuel and air mixtures.
