Express 2500 V8-6.6L DSL Turbo (2010)
Review the Display ECM & GPCM Inj. Flow Rates parameter with a scan tool. All cylinders should be programmed with a flow rate number. Both the
GPCM and the ECM should be programmed with the same flow rate numbers for the corresponding cylinders.
Circuit/System Testing
Important: If the flow rate number is not available in either control module, the numbers will need to be retrieved from each individual
injector.
Fuel Injector Identification Numbers
1 - Manufacturing Plant
2 - IQA Number
3 - Manufacturing Date
4 - Injector Number
5 - Serial Number
1. With a scan tool installed, enter the vehicle information and select the following options:
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Engine Control Module
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Module Setup
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Injector Flow Rate Programming
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Display ECM & GPCM Inj. Flow Rates
2. Record all flow rate numbers with the corresponding cylinders from the control modules.
Important: When installing a new fuel injector, ensure that the IQA data number from the yellow IQA Data Tag, shipped with the new
injector, is programmed to the correct cylinder
