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Home >> Chevrolet >> 2002 >> Astro Van Passenger, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Fuel System (Gasoline) >> Fuel Injector Circuit Diagnosis (4.2L) >> Test Description

Test Description

The numbers below refer to step numbers in diagnostic procedure.

  1. 3

    This step tests for an open Ignition 1 Voltage Supply circuit between PCM 1 fuse and multi-way connector.
  2. 4

    This step tests for an open or high resistance between multi-way connector and fuel injectors.