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I believe the desired idle RPM is influenced by a few things. A/C compressor is one of them for sure as is Cat Lightoff. I've also seen desired...

the LNF guides are more or less useless in that case, because the LNF uses a Bosch ECU. attached is a stock file for review.

If I can remember from one of my GM schools it is like the difference between window 98 and window 10. Sometimes GM will jump from windows 10 to...

Great tip!! Thank you.

check your pm

If you have a significantly larger tire you can re calibrate your speedometer and BAM you just got better MPG. Well maybe not better but more...

And apparently you cant get a junkyard ecm either. at least not in Kingman AZ because for 1. there are no chevy ss here. and 2. the dealer doesnt...

lucky you. I cant even read mine. The tcm and fscm no problem, but when it tries the ecm it reads for 50% then 36x number of attempts comes on and...

It's not the data sent between ECM & EBCM that's different, it's the structure of the carrier signal which carries that data. It's deeper than the...

2017 zl1 auto with Magnuson 2650, BTR stage2 cam, NW103 TB, big gulp Intake, 2"ARH Headers with no cats, dsx aux low side pump. So I am commanding...

Thanks blindsquirrel I see what you are saying and will probably start a parallel path with one of my spare ecms if they match the 08 hummer or track...

Plug your smarty back in and return to stock. FYI HP Tuners does not actually read the tune flashed into your ECM, you could have left it still...

Hi team Have recently joined, seeking tuning advice on the order to do things. Based in Sunny Queensland Sunshine Coast Australia. I own a 2015...

Ring and pcm doesnt match. 2013+ are different.

Ah righto, so you're looking to retain the customised tune to suit the VU driveline now in a VX Calais. I guess the only comment I'd make on that is...

Now Im not sure where to start with the spark table... Is it a good idea to copy the spark table from the 6.4 non mds to get closer to the cam...

Could I get that info also. Thanks robert.r.k.jr@gmail.com

PCM torque management per gear vs mph. Useful with big power....works nicely... Put some small tq numbers in there and you will feel it.

Try something like this. Stay with NN enabled for now and see how it dials in.

You have an issue that is caused by the underlying operating system and the communications protocol it uses to talk to the EBCM, it is not a matter...

I wouldn?t hold my breath bill had posted in another thread that the direction gm was headed was going to make support much past 19-20 difficult if...

300*2500/3456 = X*.069 = 150hp With the OEM cam the most it can make at 2500rpm is 150hp With an aftermarket cam: 150*.75 = 112hp roughly...

log of idle

Where are the 2 tables in your post, i cant see them???