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Home >> Pontiac >> 2003 >> Grand Prix GTP >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Engine Controls - System Testing & Engine Component Tests - 3.1L) >> Fuel Systems >> Fuel Injector Balance Test With Tech 2 >> Test Description

Test Description

WARNING: This page is about a different variant/trim than selected.

The number below refers to the step number in the diagnostic procedures.

  1. 3  -The Engine Coolant Temperature (ECT) must be below the operating temperature to avoid irregular fuel pressure readings due to hot soak fuel boiling.
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