So I got my AE installed in my laptop, figured out how to connect, and started to play with my new toy, I pulled the dtc s, nothing out of the ordinary, played with the live data, then ran a KOEO test, it started after a couple of seconds it quit, and showed po606 rom error.
A little history on the pcm, the PO put a super chip in it, don't know the exact mfg, model, he just said super chip, when I got the truck the transmission was trashed for the 3rd time, in 146,000 miles, they abused it, but for $3500 I had to have it, when I had the transmission rebuilt the trans guy stated that the pcm solenoid pressure circuit was stuck at 50% I took it to a local shop to have it re flashed, they stated I needed a new pcm, as the rom was bad, I took it to another shop, they re flashed it and said all is well, GREAT, took it back to the trans guy, the trans shifted proper, with correct pressures, all of this with no chip, I put the dp6 chip in, and have had no problems, except harsh shifting in tow when towing 9,000 lbs, another story, recently I have been experiencing harsh shifts in stock tune, same as when I first rebuilt the trans, with no ses light ever being thrown, even from the beginning.
I am glad that I got the AE, as I can diagnose the truck, on my own, it should be the 1st "MOD" that anyone does to their truck.
My questions are what is wrong with my pcm? Is it the pcm? Any recommendations? if it is my pcm where to get it fixed, or swapped, I would like to get a good used one, to put in during rebuild, and to have as spare, Did the re flash just mask a few things, with an underlying rom problem? I have searched, and found that PO603 can be thrown by the chip, but PO605 is in the pcm itself, but no one ever stated the cause, and correction update
Thank you