what do i have to do to change my pcm from 98 to 99 or newer
#1
Staging Lane
Thread Starter
iTrader: (48)
Join Date: Aug 2009
Location: south jersey
Posts: 62
Likes: 0
Received 0 Likes
on
0 Posts
what do i have to do to change my pcm from 98 to 99 or newer
i have a 88 trans am with a ls1 swap. it has a modified 98 harness and computer. will the newer computers 99-02 bolt directly in place of my 98 computer. are there any benefits of installing a newer year computer? i wanted to buy a diablosport predator, but it only say it will work with 99-02. has any one used a predator on a 98 computer? any help grreately appreciated
#5
Teching In
iTrader: (7)
Join Date: Sep 2011
Location: Orlando
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
It took me about 4 hours to do it. It took me 2 hours to repin it back to the 98. If nobody posts the link, I'll find it later. Someone has created a perfect step by step instruction on how to do it.
Trending Topics
#8
On The Tree
iTrader: (7)
Join Date: Dec 2008
Location: elizabethtown.ky
Posts: 107
Likes: 0
Received 0 Likes
on
0 Posts
what is the diffence beween 98 -02?as long as u dyno the car is should come close to all the same right?i have a 98 ws6 6speed and im leaning to a dyno but if i can get more power out of a pcm swap like hes doing then ill do that to.or do we just repin the 98 pcm?
#10
I was looking into doing this for my 98 Z because I wanted a diablosport tuner. My dad has a 99 T/A he got the diablo and he claims it gave him 15hp at least. I drove his car and it felt no different then my camaro. I think he wasted 280dollars and its in his head. I don't really believe in hand held tuners. I rather have mine dyno tuned. And that's what I'm gonna do. I think it would be cheaper then buying a new pcm and the diablo then it would to just take it to a performance shop for a nice tune. That's just me though
#12
Are you saying that the 98' PCM'sprimary and secondary VE tables are easy to tune as a 411 PCM? I have no experience with tuning this is just what i have read and been told.
#14
TECH Fanatic
iTrader: (24)
99 and up you can do custom operating system, which you can control nitrous and can even do 2 or maybe even 3 bar maps?? I could be wrong on the 3 bar maps(i am no turbo guy)
also the 99's have a lot more idle tuning that can be done for when its time for the monster camshafts.
I am running a stock 99 computer and harness in my 98 t56 race car.
also the 99's have a lot more idle tuning that can be done for when its time for the monster camshafts.
I am running a stock 99 computer and harness in my 98 t56 race car.
#15
Tire Smoking Tranny Blowing Director
iTrader: (2)
http://www.chipsbyal.com/convert98/Convert98a.doc
That's what I used to do mine. Have to do a crank relearn and vats if you have it afterwords. Plus need a 02 program for a 98. Can go to Holdencrazy for a file
That's what I used to do mine. Have to do a crank relearn and vats if you have it afterwords. Plus need a 02 program for a 98. Can go to Holdencrazy for a file
#16
Teching In
iTrader: (7)
Join Date: Sep 2011
Location: Orlando
Posts: 28
Likes: 0
Received 0 Likes
on
0 Posts
http://www.chipsbyal.com/convert98/Convert98a.doc
That's what I used to do mine. Have to do a crank relearn and vats if you have it afterwords. Plus need a 02 program for a 98. Can go to Holdencrazy for a file
That's what I used to do mine. Have to do a crank relearn and vats if you have it afterwords. Plus need a 02 program for a 98. Can go to Holdencrazy for a file
#17
Banned
iTrader: (10)
99 and up you can do custom operating system, which you can control nitrous and can even do 2 or maybe even 3 bar maps?? I could be wrong on the 3 bar maps(i am no turbo guy)
also the 99's have a lot more idle tuning that can be done for when its time for the monster camshafts.
I am running a stock 99 computer and harness in my 98 t56 race car.
also the 99's have a lot more idle tuning that can be done for when its time for the monster camshafts.
I am running a stock 99 computer and harness in my 98 t56 race car.
The timing tables go to 1.2 grams vs only 1 gram in the 98s.
FWIW, one of the tricks I use on the 98s is to use the 2 bar SD COS when tuning a big cam car in speed density. Just keep the 1 bar sensor, and change the linear and offset to the 1 bar parameters, and just use 1/2 the table. That way you get the resolution of the bigger VE table (don't have to use the secondary VE).