Check your connections on the abs controls.

Can you point me in the direction to do this?

OK, I went to another guy and he had a better scanner. He says the computer doesn't know the truck has ABS so it's triggering the ABS light? How could the computer not know it has ABS? I need Bill to check and see if anything was done when he wrote my 4.6 to 5.4 tune. I don't want a truck without ABS that had it before? Something IS wrong here.

Yes - Something IS wrong. The base (stock) tune in your PCM does not "see" your truck properly. Unless Bill wrote a new "stock" tune for you, I cannot see how his "tune" files would have anything to do with this.

How did you get your truck to run in the first place after the engine swap before Bill entered the picture? I may be wrong,. but I'd guess that someone "flashed" a stock tune into that PCM that made it work with the new engine. Then, Bill wrote custom tunes for that flash (hex code).

My "educated" guess is, the stock flash DID NOT include your ABS brakes. So, I'd bet you need a new stock flash. Once you get this, I suspect Bill will have to rewrite your tunes - similar to getting a dealer reflash.

If what I'm saying is plausible, go back to whoever did your stock flash and make him reflash it with the CORRECT stock tune. Make sure you set your truck back to stock first though!

- Jack

Jack,
Bill, in fact, wrote the stock 5.4 tune on the orignal 4.6 ECM after the engine swap. I had to give him the #'s from the original ECM so he could figure out the what the 5.4 hex code was going to be. So, if the stock tune did not include the ABS then it needs to be done again. Can you forward this to Bill so he can review his original tune to see if it was correct?

Okey-Dokey - I'll try to draw his attention to it.

- Jack

There should be a box around the master brake cylinder.

OK guys, I've tried everything suggested and still nothing. Fuses check out, connections check out, programming back to stock doesn't help (a reminder that Bill wrote my stock tune as well). I am getting extremely irritated and worried because twice since my last post concerning this I've had my brakes LOCK UP when braking firmly and nearly got into two accidents!
I need Bill to re-check his tune to make sure the ABS is included because this has become a major safety issue. I know you guys are busy but safety comes first in EVERY matter.

Yup - I'd say your engine installer screwed up the wiring somewhere and it needs to be fixed. A tune IS NOT going to muck with the ABS!

- Jack

Jack, you yourself suggested in an earlier response that the stock flash did not include the ABS brakes in the tune. I want to make sure that Bill's tune included the ABS brakes before I start spending a lot of money trying to figure out something that may be as easy as checking a stock tune.