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View Full Version : DHP PCM problem


Nacho
10-02-2006, 07:45 PM
I just installed my dhp pcm last thursday, install went fine disconected the battery took out old pcm put the new pcm in started on first try didnt need to do the security re-learn, no engine lights came on got the CASE relearn done anyway on saturday, but ever since i put it in the tranny slips on the 1-2 shift, it does shift harder when it finally grabs but at first it slips then shifts. This has happened before a couple times whenever i have disconected my battery then after a few days when the computer relearned everything it went away, i was wondering if anyone else has had this happen? also is it normal with the dhp pcm for the fan to keep running for a bit even if the key is out of the ignition?

also when i installed the pcm i had about between 1/4 and 1/2 a tank of 89 octane after i installed it i went and filled up with 91 and got some octane boost to help even it out. i dont see why that would cause any problems but ya never know.

dmbprep69
10-02-2006, 08:41 PM
Well the dhp pcm increases tranny pressure so th fact that it slips could mean that ur tranny is on the way out. Or at least wait a while and see if its consistent. As for the fan on at key off when u shut ur car off and the water temp is above 190 the fan will stay on for 2 mins at key off.
Peace,
Andrew

Nacho
10-02-2006, 08:49 PM
Well i would certianly hope the tranny isnt going its less then 3 yrs old, and even before the DHP if i put it in 2nd and did the 1-2 shift it shifted hard no slip no nothing, im hoping its just like it did before just did that for a couple days then goes away.