Thread: Need some help from the pro's

Hi guys im new to this sight but not new to working on cars and bikes. I signed up to this forum for some helpful info. Here's the deal. I have a 99 grand prix gt that i have been having problems with the motor. Its been getting water in the intake its making a puddle above my heads laying in the lower intake and causing my car to try to run on water lol. So i changed upper and lower intake gaskets and tb gasket. It still does it. When u rev the motor it collapses my radiator hoses and fills my motor with water. Everyone keeps saying head gaskets but if were that then how is there water sitting above the heads in the intake. Well here is what iv decided to do. I found a 3.8 super charged motor and hae decided to put that in. I know i have to have the ecu and wiring harness, but here is my question. My car is a 4 door with all options and the car im getting the motor and ecu out of is a 2 door gtp. My question is will a 2 door ecu work on a 4 door correctly, and still let all of my windows and etc. to work? Also will i have to get the ecu reflashed or redone to work on my car or can i just plug and play and have no problems? I need a 100% correct answer not just people guessing this is my daily driver and i dont need a piece of garbage thats just gonna break down. Any help is appreciated

2000 i just wana know what all im going to need and if im going to run into any problems

What do you mean 3.29 gearing? What about the computer with it coming from a 2 door going into the 4 door? Does it have to be reflashed for my vin to work properly? I wana mae sure my power windows and keyless entry still work. I shouldnt need a tune if its just a straight swap should i

Why do u have to flash the ecu for gearing isnt it vacuum operated? Can i get it flashed at the dealer?

how much will that cost and will it have to be dyno tuned after that?

And if i dont do the thing with the computer what will my car be doing? Will it still drive or not?

Should the car still run and drive without that though?and How much does he charge and how long does it take?

Originally Posted by 99prixgt

hell, anyone with a tuner can do it for you, you just need to make sure they have an off-board adapter.

I have an off-board adapter, i would do it for you, only if i knew how to use it

lol you would have to know how to use it. do you think anyone has one of these for sale already done? or is it to rare of a swap for anyone to have it? can i get my gt computer done like this or does it have to be a gtp computer? also yall say it wont shift when driving would i beable to **** it manually until i get my ecu done for the swap? im trying to make this easy as possible. also will i have any problems running my factory fuel pump with the motor swap?

Originally Posted by 99prixgt

in all seriousness, your task is so simple either contact reptile, or even find a local with a tuner, the job is about 15 minutes worth of work.

Btw manual shifting an automatic car will leave you with a red ass, its full of fail and destruction.

how do you tune it yourself? what do you do and what kind of tuner do you need?