Upgrading 98 to 99-02?

**daveb91** · 04-30-2007, 03:04 PM

Can you upgrade a 98 ecu to the newer style? Whats the difference? Is it a simple PCM swap or is it much more in depth??

**ss~zoso~ss** · 04-30-2007, 04:21 PM

more in-depth, the 98 has a different pin configuration (this is why some hand helds dont work for 98's or have different versions)

to boot, nothing would be gained by upgrading.

**Wesman** · 04-30-2007, 04:33 PM

Why would you waste your time?? There is no performance or functionality to be gained by switching PCM's between years.

If you want to modify your PCM, get a tune. That will give you more performance, as well as better efficiency. Of course, its not going to help much on a stock motor, get some bolt ons and then have it tuned

**daveb91** · 05-04-2007, 01:16 PM

Thanks I was wondering the difference between the two thats all. Thanks.

**Wesman** · 05-04-2007, 06:09 PM

Originally Posted by daveb91

Thanks I was wondering the difference between the two thats all. Thanks.

Okay, no prob

**cailey37** · 05-09-2007, 09:30 AM

Actually the 98 ECM's have a slower processor in them.....they upgraded them in 99.....you can change it out but like someone said earlier....the pin outs are different.........but yes.....the 98 ECM's are a bit#$ to tune if you've done a lot of work to the car.....that's why I got rid of mine all together....