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Home >> Pontiac >> 2006 >> Vibe Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Control System - 1.8L (LNK) - Troubleshooting & Diagnosis) >> Fuel Injector Balance Test with Special Tool >> Notes

Fuel Injector Balance Test with Special Tool: Notes

WARNING: This page is about a different variant/trim than selected.
Fig 1: Performing Fuel Injector Balance Test With Special Tool
GM17713Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 First Reading
2 Second Reading
Injector Balance Test Example (Typical)

Cylinder 1 2 3 4
1st Reading 324 kPa (47 psi) 324 kPa (47 psi) 324 kPa (47 psi) 324 kPa (47 psi)
2nd Reading 249 kPa (36 psi) 234 kPa (34 psi) 255 kPa (37 psi) 269 kPa (39 psi)
Amount of Drop 75 kPa (11 psi) 90 kPa (13 psi) 69 kPa (10 psi) 55 kPa (8 psi)
Average Range: 242-262 kPa (35-38 psi) Injector OK Faulty injector - too much fuel drop Injector OK Faulty injector - too little fuel drop