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Seeing 12 volts at a connector doesn't prove the circuit is healthy. Learn how automotive wiring load tests expose corrosion, weak terminals, damaged wires and other hidden resistance.

If your Acura RSX starts and then immediately stalls, check the immobilizer, fuel pressure, throttle body, vacuum system, sensor data and idle learning before replacing parts.

The Safety Restraint System in your Infiniti I35 is designed to keep you and your passengers safe in the event of a collision. The...

When your Mazda B2300 TPS sensor begins to fail, it can cause a bunch of issues with your light duty truck. The TPS is...

Transmission problems can be a headache. When your automatic transmission has a faulty controller or is low on transmission fluid, it can cause the...

Combining the low cost buck of the LS or non VTEC engine with a high flowing cylinder VTEC head, the hybrid Honda engine known as...

The On Board Diagnostics system in your Ford Taurus is a complicated computer system that governs your Ford's health. It communicates through a port...

Addressing check engine lights or OBDII trouble codes is never a fun thing to do. But when it's time for maintenance on your Nissan...