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Finally a tune worth a darn. Thanks Lextech once again. I have a functional tune now and a running Suburban. I am so glad to have that much working. I reflashed a few times today, mostly small...

Ok, I pulled upper intake, upper shroud, belt, fan and drivers valve cover off. I rotated the eng until the dizzy pointed to #1. It was 25° advanced on the balancer. I pulled it up, to keep the oil...

Thank you RADustin, you are correct that I have something mechanically wrong now, in fact I must have something wrong now because I changed the distributor position, however when I first put the...

I have put a light on it. I had a light on it for the last few days trying to figure out if I could see the problem was timing, revving the engine with my son watching the light on the balancer. It...

Jeff it has been quite a long time but I did get my info from you to swap wiring in my 96 Suburban. You were very helpful. I got it running 2 years ago but it was never perfect. The ingeartiming tun...

Thank you MobileProg, the site looks like some pretty great stuff. I will have to talk to them about a tune for this thing.

So far today I have flashed 6 times and 5 of them would not even produce a spark. I have it on a running .ctz with injectors set at 20#. The stock injectors are 19# but the tune I am starting from...

So I kept reading and I think I have found some very helpful info. I am certain that I need to do a crank relearn (po1336), and I think I have the right link to figure that out now. I have tried to...

Hello N0DIH I too have an L29/ 4L80E but in a 96 2500 Suburban. I am having trouble with a case learn and need a good base tune for my 411 swap. Have you got anything you would be willing to share....

I have been reading for a long time now and I find several similar topics and they all just end with no resolution. I am committed here, I swapped my computer for a 0411. I must make it run as it is...