Throttle-By-Wire Diagnostics
Throttle-by-wire systems proactively manage the air and fuel going into the combustion chamber.

Hyundai & Kia Hybrid Drivetrain
The Hyundai hybrid system has a motor control unit (MCU) and hybrid control unit (HCU).

Acura Turbo Engine Service
It is important to check the operation of the solenoids that control vacuum to the actuators.

Why Do Timing Chains Stretch?
As the timing chain wears, it can change the timing of the camshaft and crankshaft.

Subaru EJ25 Head Gasket Problems
Most of the EJ head gasket failures occur around the 100,000-mile mark and start as a slow oil or coolant leak.

Mode $06 Misfire Diagnosis
Understanding why ‘Mode $06’ was developed and how it works to identify misfires.

Solving Intermittent Overheating
New cooling systems anticipate and influence changes in coolant temperature.

ADAS Calibration Tips
Here are 10 tips to follow during ADAS Calibration.

Repairing Wiring Harnesses
A guide to probing and poking.

Ignition Systems
The ignition coil is a very simple and robust circuit.

Auxiliary Cooling Pumps
An auxiliary cooling pumps primary function is to circulate warm coolant to the heater core.

Alternator Testing For No Charge Conditions
Many alternator problems turn out to be nothing more than a bad connection at the alternator or a bad wiring harness.
