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Home >> Buick >> 2003 >> Regal LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 3.8L >> Fuel Systems >> Fuel Injector Circuit Diagnosis (Regal) >> Test Description

Test Description

The numbers below refer to the step numbers in the diagnostic procedure.

  1. 4  - This step tests for a short to ground on the fuel injector ignition 1 voltage supply circuit.
  2. 5  - This step tests for an open ignition 1 voltage supply circuit between the injector fuse and a fuel injector harness connector.
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