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Home >> GMC >> 2003 >> Sonoma 2D Pickup, 2.2 H, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Engine Component Tests - 2.2L >> Fuel Systems >> Fuel Injector Balance Test With Tech 2 >> Test Description
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Test Description

The numbers below refer to step numbers in diagnostic procedure.

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

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