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Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing - 4.8L, 5.3L & 6.0L - Flex Fuel & Gasoline >> 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. 5  - If the pressure drop value for each fuel injector is within 1.5 psi (10 kPa) of the average pressure drop value, the fuel injectors are flowing properly. Calculate the pressure drop value for each fuel injector by subtracting the second pressure reading from the first pressure reading.

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