transam02

Can I switch out my 99TA PCM for a 02 PCM?

Is it a direct switch?

transam02

Anybody??????????????????????????????????????????? ?????/

Tiger2o69

iTrader: (16)

ttt someone

Another_User

I saw a thread about this earlier. I think it was on the HPTuners board. In short, the answer was no. You probably could, but it might be easier to trade your car in for a different one from how it sounds.

horist

I don't see why you wouldn't... so long as the trans is the same ... I'm running a 2002 OS in my 2000 car in a PCM that I have no clue what year it is (just ordered a 99+ PCM from valvegod)

98s are the oddball year... but AFAIK the 99-02 PCMs are similar enough to accept any OS and can be swapped around...

Windy City on this site has a 2002 and I believe a 2000 PCM that he used to swap back and forth (before he got HPT) on his 02 car... 99s should work fine as well..

Just keep in mind that an 02 PCM will have the 02 timing/fuel setup... 02 car setup for 28lb injectors, smaller cam... 99 setup for 26lb injectors and bigger cam ... so it may not run perfect outta the box...

You could swap PCMs then have the PCM flashed by a dealer (or anyone w/a full HPT tuner package) to your year also ... regardless what year the PCM came in (so long as it's 99-02 f-body)

Another_User

Wow...so us 98ers are the only ones that suck.

Tiger2o69

iTrader: (16)

This would be great if so.

Tiger2o69

iTrader: (16)

Just to make sure has anyone else done this? Any thing we need to know first?

Team ZR-1

You can either flash your '99 PCM with a newer model year by changing the VIN# or replace the PCM with a newer one but if swapping PCM you should do a PCM / BCM relearn and a Crank position sensor ( CASE) relearn.
I suggest you use a stop watch for doing the PCM/BCM relearn if your doing it manually.

If you have a Ease V2.5 to V 3.5 version PCM scanner use the bi directional mode to do the CASE relearn.

Being the '99 used a 75 mm MAF and newer models from '01 uses the 85 mm MAF you need to make sure your tuning for the MAF you decide to use and adjust for injector size used.

Also do not forget about the EGR function if its a F body where 99 used one and '02 does not.

2xLS1

iTrader: (25)

All 98-02 Fbodies use the same MAF.

Team ZR-1

Look at the PCM MAF table for 97-00 and you see it starts at 1500 Hz.

Now look at a '02 MAF table it starts at 750 Hz since the 85 mm MAF has a wider output frequency then the older 75 mm MAF.

jimmyblue

iTrader: (11)

The tables have more fill at the bottom and top,
but the "meat" is the same and so are the MAFs -
my '02 had the same 75mm "Oreo" MAF as the rest
of the F-bodies. The 'Vettes got upsized, but not
the Camaros and Firebirds.

Team ZR-1

That is not my point,
what is since the MAF table for a '01 supports freq less then 1500 Hz and more then 11,500 then if he wishes to use a 85 mm MAF he can do so where he could not if he maintained his older MAF tables.
Its not worth it to me to go with a 02 flash and not make use of what he has over the older '99 flash tables.
Do not forget the adaptive strategy used in the '02 is functioning differently then the A.S in his '99

Tiger2o69

iTrader: (16)

Basically what we were thinking is that I have hp tuners and it would be easy to reflash his to an 02 which is the same year as mine then change all the things like injector sizes, cam , ect.

Is it worth the trouble?