Your charging system and battery create and store this pressure, and the vehicle’s circuits – containing fuses, wires, switches and connectors – deliver it.

Testing the voltage drop on the ground side of the starter circuit is straightforward. We’ve simulated this test on the bench showing the starter, battery, and cables.

A voltage drop test uses small voltage readings measured within a circuit as an indication of resistance. Most high-current flow, low-resistance circuits-like a simple length of battery cable ...

On most Corvette models, ignition voltage is supplied directly to the fuel injectors. The engine controller controls each injector by grounding the control circuit using an internal switch called ...

Tech guru James Berry looks into how to diagnose a failed or clogged fuel injector on a Corvette with port fuel injection.