Nissan Frontier: Finding Failures, Faults
Nissan uses two accelerator pedal position (APP) sensors to transmit a throttle position command.
Jaguar Air Ride Diagnostics
The 2004-2009 Jaguar XJ8 and XJR were the first and last Jaguars with four-corner air ride suspension.
Modern Fuel Control Diagnostics: Sorting Through the Datastream
When confronted with a fuel control problem on a modern vehicle, I’ll normally use short- and long-term fuel trims to determine if the problem is caused by one of many failures such as a vacuum leak or a leaking fuel pressure regulator. If you’re like me, you’ll occasionally access the air/fuel ratio (AFR) sensor serial
