ECM Interchangability

[slick]

Yes, i used the damn search function, but with over 700 matches, i said fuck it. Will a 2.8/3.1 work with my 3.4, as long as i put my FFP chip in it? I'm think it will, but i wanted to be sure before I went out to the JY.

[Guest Anonymous]

YES

[slick]

Thanks turbs.

[joey b]

thought the 3.1 ECM would not work with the 3.4 because the LQ1 needs more RAM.

[mihela816]

need one that came with a 4t60E

[patgizz]

need one that came with a 4t60E

 

bingo

 

i ran a 94 3.1 ecm w/ my 91 3.4 chip in it for 2 years with the dohc.

[slick]

Hmm... Gotcha. So i guess i'll have to crawl under the car at the yard then?

[Guest Anonymous]

So I was half right. If you know what years got which tranny's you won't need to crawl under the car.

[slick]

I pretty much know what got what, but when a car is sitting at a yard for a long while, you kinda can't tell what year it is anymore

 

Now, another question. Say i did get a ecm that was for the 4t60, it would probably cause problems, wouldn't it?

[maybe2fast]

the ECM wouldn't comtrol the tranny hense the E for electronic...

[Robby1870]

Not sure if it would cause problems but the ECM for a DOHC car needs to know what gear the tranny is in, and if you use a ECM from a 4T60 car, it wont know what gear its in.

 

An easy way to check the year of a car is to look at the VIN number. The 10th digit is the year. N = 1992 --> start from there vowels and Q arent used. 8th digit is the motor if you're curious

[slick]

Hmmm.. Well Don, if that one that your getting is a 4t60, i'll just pop it in and let the car sit and idle for a while. I don't have to be in drive for the damn thing so die

[cutlassdude96]

93+ 3.1's had the 4T60E, vin p is 93

[slick]

Hmm... I'll have to remember all of this. Good info!

[GnatGoSplat]

93 3.1 ECM is the ONLY 3.1 ECM you can use.

And yes, the car has to have a 4T60-E, 93 was the only year the 3.1 was used with the 4T60-E.