well i thaougt that everything was going well but here what is going on. engine is in 2000 wire harness is on icp is connencted and bcm is connected problem pcm , bcm icp are all from different cars all 2000 grand-am gts but different cars . should it or will it work IDO NOT KNOW why you ask ......................................as big as my town is know one not even the dealer has the flash tech to program my BCM !!!!!!!!!! ANY ONE WITH ANY IDEAS ..................................... JUST ONE will any gm car with a 3.4 motor work , will the pcm ,bcm and icp connect into my grand am icp , will any gm car with a 3.4 motor plug in to the connections i have already installed case in point will a monte-carlo 2000 pcm ,bcm,and icp plug into the grand am connections . oh the monte is a 3.4 please help me

I'm not sure I understand what's going on here. Your post is a little jumbled, to say the least. Here's the kind of info that would help me understand the problem:
What year/model is your car
What year/model is the motor
What year/model is the PCM.
What are the problems you are having with the car?

look what i am tring to ask is if i get the pcm bcm and icp out of one monte carlo will the bcm and icp plug in to the connections that i have already wired in to the cavalier harness for the bcm and icp for the grand am bcm and icp

Dude....might want to list what you have. No one knows what you're trying to do.


<img src="http://images.cardomain.com/member_images/11/web/443000-443999/443183_1_full.jpg">

ok lets try again i have a 97 cavalier , which has a 3.4 motor from a 2000 grand am gt i have already installed in the car . i have a 2000 grand am pcm a 2000 grand am bcm , and a 2000 grand am icp.now everything has been wried in the harness the bcm needs to be programed , but no one in this city has the means of programing the bcm

i did the same swap only i used a 3100 out of a 95 grand am , i didnt have to change the bcm or icp all i did was got a wiring diagram from my state college that has a car automotive class i cut the wires from the bulkhead that ran to the pcm and injectors after i identified wich ones using the wiring digrams. look at my cardomain site . it will help you out .
http://www.danasoft.com/sig/lman1.jpg
www.cardomain.com/ride/797518

Need the PCM reflashed try going to Digital Horsepower . The can reflash the PCM's from the 3100 and 3400 for engine swaps and even manual tranny's . They will remove the VATS and can make the PCM pretty much standalone from the BCM and IPC .

But they are suppose to be able to remove anything that would keep the car from firing up , such as the VATS .




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Why does the bcm need reprogrammed ?

the BCM is only progamable once......... you cant Reprogram it. You MIGHT be able to reset the theft lock, to get all of them to work together........ you'd have to find the procedure on how to do it with a 2000 Grand Am (its a PITA!!!!)




SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
W41 BOI - '78 Buick Opel Isuzu W41 Swap

ok then whats wrong with my car why wont it start the mech , has bypassed the lock wired in the icp and bcm , the wire harness is from drakroom and still the motor cranks and cranks and cranks and thats all now the bcm is brand new got it from napa , the ecm is the one that came with the car and the icp i got from houston but still all are from a 2000 grand am gt injectors will not fire i dont know whats left

is your theft system light flashing ???

Is it just turning over? Does it start then shut off? If it is not cranking at all. Check for fuel and spark.



FU Tuning

if theft lock was the problem, usually it will allow the car to start and run for 1 or 2 seconds only and then shut off....... if it is only cranking i would start with spark and fuel as stated above.....

I didn't read much because I couldn't understand it.

My thoughts on it are, just get the whole wiring harness and computer from whatever vehicle the 3400 came from, it should all hook right in.



1983 Camaro Z28

jason lopez wrote:ok then whats wrong with my car why wont it start the mech , has bypassed the lock wired in the icp and bcm , the wire harness is from drakroom and still the motor cranks and cranks and cranks and thats all now the bcm is brand new got it from napa , the ecm is the one that came with the car and the icp i got from houston but still all are from a 2000 grand am gt injectors will not fire i dont know whats left

injectors wont fire check the fuse that goes to the fuel pump/injectors


http://www.danasoft.com/sig/lman1.jpg

well i thought of that and checked them a;ll and even put bigger ones in there but still no luck , also the theft light is off and i got a wireing diagram from darkroom for the bcm hook upbut it only has certain wires connected do all the wires need to be connected or just those ones

if the BCM is new, then it probably needs to be programed......... I know I had to program them when I replaced them at the dealership.

if its not starting at all, thats where I would look. I believe Nick had a problem like this when he went from a 99 to 00+ PCM/BCM/Cluster in his car.......




SPD RCR Z - '02 Z24 420whp
SLO GOAT - '04 GTO 305whp
W41 BOI - '78 Buick Opel Isuzu W41 Swap