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Recap and Update:

Recap:

1. My 1986 Monte Carlo SS tach previously worked perfectly with an LS1 24x PCM, pull-up circuit, Settings= Crank, resolution set to 3 Low and High.
2. Moving to E67...

Car is an 86 Monte Carlo SS that uses a V8 tach. I Had a 24x LS1 PCM set to Crank, Low Res 3, High Res 3 with pull up circuit and worked perfect.

Went to E67 PCM, Operating System 12611938 and...

Excellent!

I will give this a try when I get back home this weekend.

Thanks Taz for your support! I greatly appreciate it!

Matt

Thanks Taz!
I understand completely why you chose to respond here as this will help others that do not understand this configuration as well.

So a couple of questions.. How do you set the fans...

Greetings, I have an E67 PCM with the attached tune. I used to have a LS1B and the Fan setting made sense. Now looking at this I do not know how to set these to trigger on and off.

Can someone...

Yes that makes sense. Thanks Taz,


Matt

Greetings,

I just purchased EFiLive FlashScan and am anxious to install it and start using it.

The question I have is regarding installing another instance of EFiLive software on different PCs....

If its not apparant already, My "tuning career" started about 4 posts ago.:doh2: Regardless of that, what you are advising makes sense in that the engine packages and respective componenets that have...

What about the displacment difference? (5.7 LS6 Vette vs. LQ4 6.0)

Will I be wrestling with this difference in any capacity?

and is there any merit to my concerns with torque/TC managment per...

Whats wrong with your crystal ball? :doh2: Sorry, I should have detailed before asking the question..

OS is that of an 04 LQ4 with 4L60E per the attached from my first post:
...

So if I read this correctly if i swap to a truck TAC that would resolve my issues? From what I was told by speartech and Howell EFI the corvette TAC and pedal would work with the PCM but I dont know...

I swapped a 05 LS2 GTO motor and Auto trans into a 86 monte Carlo in which I used the 04 LQ4 ECM with vette tach and pedal.

Main purpose to go this route was for ease of old stock style cruise...