: Swapping 9c1/ Impala ss ecu into 94 Fleetwood Brougham

08-22-07, 11:46 PM
I have heard it is possible to put an impala ss or 9c1 ecu in a 94 fleetwood with the lt1. Is this even possible and if so how much trouble would it be? I am interested in removing the 108 mph limiter. I already have z rated tires so they are up to the task. Thanks in advance.

08-23-07, 12:44 AM
Well unless there is something wrong with your current PCM I would just have the current one reprogrammed.


This is who I used for my 96SS, he has a large customer base over at ISSF, fwiw. I am happy with his services.

08-23-07, 06:46 AM
Yep, exactly.

I have a ECU from a 1995 Impala SS OBDI, stock programming for sale. $50 shipped to your door if you need it.

08-23-07, 09:12 AM
Will that pcm plug in and work? Or would i have to take it to the dealer and have it programmed?

08-23-07, 09:52 AM
All '94-95 Caprice/Roadmaster/Fleetwood OBD-1 PCM's are interchangeable, and are the same EXCEPT for the programming. So, the car might start with a different unprogrammed one, but a lot of parameters and such would be off and some things probably wouldn't work.

BUT, for what you mentioned, this is NOT something you want to do. It won't get you anywhere. What you want is simply to have your stock PCM re-programmed by one of the MANY places and people that will do it, and change a TON of other parameters (shift pattern, feel, air/fuel mix, etc.) to your specific request.

...and others...

Here's another whole thread on the Impala SS board most of us frequent, specifically dealing with PCM's and reprogramming:


SO, what you really want is just to keep your stock PCM and have it reprogrammed (can TOTALLY transform the car, especially as far as shifts) and have it done to your specs. I, for instance, have had at least 5 or 6 different programs for my car, all with different shift patterns and such, and all with the stock speed limiter removed or bumped up very high (no use for me, but fun to know it's there).

08-23-07, 02:04 PM
Will that pcm plug in and work? Or would i have to take it to the dealer and have it programmed?

Sorry, just sold it to a guy with a Impala SS.