1985 IROC ECM service #
07-11-2009, 12:27 AM
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1985 IROC ECM service #
I have a 1985 IROC Z28 that had a fuel pump failure, I had the fuel pump replaced then the ECM smoked.... I went to the salvage yard to get a new ECM and never paid attention to the service # on my old one..to make a long story short that one didn't work..so I went to Autozone to buy the correct one, and that doesn't work either, I have a different chip for the ECM, BUT that doesn't work either...I think I need to find the service # for the original ECM and start over. It has the 5.0 TPI engine... The fuel pump seems to work through all these changes. I even changed the fuesable link going to the battery. Any help would be GREATLY APPRECIATED!!!!!!!
07-11-2009, 07:56 AM
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Car: 89 z
Engine: 96 350 HSR vortec
Transmission: 700R4 24-2800 BDR stall
Axle/Gears: 9 bolt disc posi w/3.45
Re: 1985 IROC ECM service #
There are 2 #s on the ECM.I have an 85Z ECM I just pulled from my 89Z and the #s are 7-6870 and the DC# is 0706JB.Hope this helps.
07-11-2009, 07:56 AM
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Car: 1989 Camaro Iroc-Z
Engine: 305 TPI (LB9)
Transmission: 700R4
Axle/Gears: 2.77 posi
Re: 1985 IROC ECM service #
Is the "service #" the same thing as the "part number?" According to this it should be 1226870.
07-17-2009, 12:57 AM
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Re: 1985 IROC ECM service #
Thanks guys for the help with the service #, It looks like I have the right ECM, So I'm back to the fuel pump. I guess I have to to pull the gas tank and see if the guy I had replace the fuel pinched a wire or something....**** I should have just done it myself in the first place....
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