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Modules constantly send "State of Health" messages back and forth to give an indication of communication issues. When you flash the ECM/PCM or for that matter almost any module you can get false "U"...

If you don't plan on doing tuning to it the economical solution is one of the DOD/AFM eliminators that just plug on the DLC. They are around $100 and work like a charm. Haven't researched how they do...

Interesting. I was able to SPS the one I was talking about but again that was 7 or so years ago before TechLine Connect that I use now. SPS recognized it right away. I did the Replace and Reprogram...

Somebodies doing an awful lot for beer money.
You're a good guy SiriusC1024. Hope he appreciates this level of help.

From what I understand there is a bunch of behind the curtain stuff on the crate motors. I struggled with one about 7-8 years ago only to discover there where things I would attempt to change and it...

I would connect the CAN lines specifically to the TCM/ECM only. Remove all others on the network and recheck. Might be a communication protocal that is VERY likely different between those years that...

This is what sucks about Duramax tuning with HPTuners as opposed to EFI Live. If you have a tuned EFI Live tune and then attempt a mod with HPTuners you may end up deleting your "special...

As a wild guess, did you happen to connect the ECM/TCM to the regular CAN system for the rest of the vehicle? Cluster, ABS, SIR, etc.?

You got a template? ;)

Been meaning to ask. What does the multiplier do? Why would you change it from 1.0, instead of just modifying the tire size to more closely match the actual diameter?

Roger hasn't posted in almost a year now. Don't think you are going to get his tunes

Some issues with the valve body.
Might want to check with TransGo Robert

Learn something new every day. When I have updated software on these GM has me put it into KOEO SES light on with my MDI-2 and Techline Connect/SPS.
Haven't done any flashes on that vehicle yet.

Your description is a bit vague. When you say the ignition switch in the first position, most will say that is the ACC position (accessories). This will not power on the ECM/PCM. "Pulling some fuses"...

Whatever it is bored to will add displacement. Just add that displacement to the "Cylinder Volume" at [ECM] 2001.
That will take care of it. VE still needs tuning but you are removing a variable...

The kit is nice although it does seem to be a bit delicate. I would like to have maybe a little protection around it for road debris. A little sheet metal or something.

I believe you are correct. Never thought of it that way but now that makes sense.

Use this for your VSS. Works like a charm and specific for that trans.
https://www.deloreanmidwest.com/product/vehicle-speed-sensor-kit/

P2610
The intake air temperature is between −40 to +125?C (−40 to +257?F).
DTC P2610 runs on ECM Power Down.
Do you have battery power connected to the ECM when powered down?

Let's go through this one at a time.
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Emissions Related DTCs
Action Taken When the DTC Sets – Type A
The control module illuminates the...

For the most part many just use 100% NON synthetic for break in. I am usually pretty easy on a new motor for the first 100 or so miles. No WOT. Not to sure what everyone else does but that's just me....

Did you go to the website I posted? It tells you.
Flow rates:
47 LB @ 39.15 psi
550 cc/min - 3.0 BAR (43.5 psi) 52.4 lbs
594 cc/min - 3.5 BAR (50.8 psi) 56.6 lbs
635 cc/min - 4.0 BAR (58.0 psi)...

Depends on your fuel pressure.
https://www.injectorexperts.com/products/fic-bosch-52-lb-550-cc-for-imports

144631

144632

What is "plate flop"?