Duramax Scan Tool (Injector Flow Rate Updating) - Chevy and GMC Duramax Diesel Forum
07.5-10 LMM Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 5 (permalink) Old 01-19-2012, 02:16 AM Thread Starter
Join Date: May 2010
Location: Albuquerque, NM
Posts: 2
Duramax Scan Tool (Injector Flow Rate Updating)

I have been searching for a "Programmer", "Tuner", "OBD Code Reader" that will allow me to update my Injector flow-rates when I replace them. I keep reading about EFI-Live, but no-one has been able to confirm or deny if it will re-program flow-rates. I found another article that explains how to do it and that I need a "Scan Tool".

Copied from (w w w . thedieselgarage . c o m/forums/showthread.php?t=1072)
With a scan tool installed, enter the vehicle information and select the following options:
Engine Control Module

Module Setup

Injector Flow Rate Programming

Display ECM & GPCM Inj. Flow Rates

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

⇒ If any injectors are replaced, go to Reprogram Injector Flow Rates parameter and enter the flow rate number of the new injector to the corresponding cylinder. The flow rate numbers will automatically update both control modules.

⇒ If the ECM was replaced, go to Copy GPCM Inj. Flow Rates to ECM parameter and reprogram the ECM. This will update the ECM with the GPCM flow rate numbers.

⇒ If the GPCM was replaced or the flow rate numbers are not the same for both modules, go to Copy ECM Inj. Flow Rates to GPCM parameter and reprogram the GPCM. This will update the GPCM with the ECM flow rate numbers.

⇒ If both control modules were replaced, go to Reprogram Injector Flow Rates parameter and enter the previously recorded flow rate numbers or the numbers retrieved from each individual injector, to the corresponding cylinders.

Can anyone shed some light as to what "tool" I need to complete this?

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post #2 of 5 (permalink) Old 01-19-2012, 11:18 AM
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Sounds like you need a Tech II. Something your going to find at the dealership, no they wont sell you one

2008 2500HD LTZ, EFI Live- Idaho Rob's Tunes, 4" Magnaflow Turbo Back, Raptor 150 Lift Pump, Transgo Jr, All Season Diesel EGR delete with high flow Y-bridge, Edge Insight for gauges,
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post #3 of 5 (permalink) Old 01-19-2012, 11:30 AM
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Oh GM will sell you one for the right price.

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post #4 of 5 (permalink) Old 01-19-2012, 11:48 AM
Do work!
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You can get a tech two from any Bosch dealer. I got one from napa a few months ago brand new

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post #5 of 5 (permalink) Old 01-28-2012, 07:06 PM
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Originally Posted by GMguy View Post
You can get a tech two from any Bosch dealer. I got one from napa a few months ago brand new


Wow, what did that set you back?

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