I am trying to purchase a new ECM and the parts store says they have two options for my car. How do I find out which one is the one I need? Thanks.

 

Give us a little CLUE
What year car do you have ?
What engine do you have?
What intake system do you have??????

Fill in your profile on the left maybe

 

Oh damn. I can't believe I forgot that stuff. Its an 87 TPI 305 Camaro.

 

Has a '165 ECM
GM service # 1227165
Replacement versions may be numbered 16198259 or 16198445
Same ECM version used for all '86- '89 TPI cars ; F-Body or Vette , 305 or 350ci

And I would be buying a used ECM ; always available in for sale dept under $50
https://www.thirdgen.org/forums/engi...d-87-iroc.html

 

Hi really need help - i have a 89 iroc z28, 5.7L 350 standard that runs lousy bought last fall - winter stored, now has chunky idol right from start up - changed fuel filter, spark plugs and wires and reconditioned msf, had garage run scan and still showing bad code for msf was told could be overridden with a speed density chip ?? or cracked wire is there any way I can tell what will fix it without spending another small fortune?

 

More testing needed .Takes more than just replacing the MAF unit
Read
http://www.chevythunder.com/maf_code_33.htm
http://www.chevythunder.com/maf_code_34.htm

Not without changing the computer
Will get better response if you start a new question about your engine problem

 

will try these tips and let you know thanks

 

Thanks and sorry I left out the info. I was kinda in a hurry.