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Could you run an E92 PCM controlling a Gen V engine and have a T42 sit on the high/low speed CAN to shift a 4L60 or 4L80?

Would HPT see them as just two separate controllers?

Working through thoughts on a swap idea. Would like to use a DOD-deleted cammed L83 Gen V 5.3 and a 4L65/70e.

I see on some GM sites they offer a crate option with an LT1 and a 4L70e... under...

Yes, and to answer your question it was (or so we were told) tuned by a local place. But it has never seemed right. Hence why the involvement in trying to come on here and ask opinions.

If the...

Some more feedback, seems cleaner/smoother when cruising around 50-60 MPH, still a hesitation around 2,000-2,500 RPM. It seems to slightly taper off once engine is warmer.

OK, got the latest calibration loaded on the truck with those two correct air values. So far truck does seem to run better, idles better. Data logged and made sure to capture cylinder airmass. Log...

Thanks! We?ll try this soon and post back. Appreciate it.

Friend of mine has a 2008 Tahoe presently with a LY6 6.0 and a 4L60E. Truck originally had an LMG (5.3 Flex). Has the square port LY6 intake manifold with the LMG 37 lb/hr injectors, LS3 cam, K&N...

Think I finally figured it out. Idle spark advance in-gear.

PCM was commanding coast when descending down a grade. Since TPS is low during a coast situation, the PCM then referenced the idle...

Think I finally figured it out. Idle spark advance in-gear.

PCM was commanding coast when descending down a grade. Since TPS is low during a coast situation, the PCM then referenced the idle...

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I upped the speed that of which the TC locks up at. In doing that, I VERY clearly saw the condition I am experiencing. It is not TCC. Seems to be spark/airflow related.

I saw the tach...

I'll have to get a datalog and capture these events.

Thanks for this. I wrote it today and drove around for the day. I am still feeling this. But, I did see something interesting. Now that the TC is locking later, when I am descending down a slight...

Had another thread on here trying to nail down a strange TCC lock/unlock situation I was having, but I didn't get back to it for a while. Have since had some time to re-investigate the situation.
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Did another log, seems to be behaving a lot better. I think I may still feel some of the locking and unlocking, but then I look in the log where I believe it was and it looks like its acting normal....

Alright, so I did some looking and maxed out all of my misfire tables under Revolution and Cylinder modes. Previously, I had only maybe up to 1400RPM maxed out. I went out for a drive and WOW, NO...

Thank you. I?ll look for a TCC brake fuse and check it out. Also, I will disable all misfires in all tables.

Am I correct in thinking that even if I have a baby cam, it?ll show misfires as the PCM...

Thank you for this, I am finally getting back to this and will log those channels in the next day or so and report back.

I've been fortunate to have some free time as of late so I am trying to...

Thank you for that, I am going to read through that and look through my tune.

Pretty new to tuning here. I had an e-mail tune for my 2005 Tahoe. Truck runs good, has good power, but fighting an issue where with cruise on at 65mph, going down a grade, I can feel the TC...