I have a 98 GTP with light mods including a dhp pcm. The problem only occurs once the car is fully warmed up and its happens off and on.
Starting out in drive from a dead stop then accelerating, takes off fine in first gear then it will shift into 2nd and then lock up the convertor as soon as it it shifts and stay locked for 1-2 sec then unlock and shift into 3rd normal and then 4th. It also seems that it shifts into all the gears very early if Im light on the peddel. It also does the whole lock, unlock in 2nd under any throttle position....even WOT.
I also noted on occasion that after downshifting to allmost a complete stop in will lock up as well then unlock. Real hard to explain this.
It will only do it once warmed up
It does not do it all the time
Its been doing this since Ive bought the car 6months ago with all the mods listed.
The car has 98,000 miles on it, no codes, fluid is red, clean and does not smell burnt.
Could this be a problem with a issue the DHP PCM? I read strange trans issues with DHP pcms.
This is my only Mode of transportation, I have 2 little girls and no money. Im hoping its someting easy to fix untill I can save up for a used, rebuilt trans from Dave. Thanks for reading guys.
Jason
