On Board Computer help 1981 Corvette
Thread Starter
Melting Slicks
Joined: Jun 2000
Posts: 2,386
Likes: 4
From: Dallas / Fort Worth, Texas Texas
On Board Computer help 1981 Corvette
I'm putting a new crate engine in my '81 vette. The new engine has fuel injection & it's own computer - the old engine had a computer (of sorts) to control the carb .. my question is how / where to disconnect the old computer , so that I don't get the "check engine" light on all the time.
Thanks for your help
:cool: :cheers: :smash: :seeya
Thanks for your help
:cool: :cheers: :smash: :seeya
Thread Starter
Melting Slicks
Joined: Jun 2000
Posts: 2,386
Likes: 4
From: Dallas / Fort Worth, Texas Texas
Re: On Board Computer help 1981 Corvette (Dalannex)
Getting a 350 commercially rebuilt locally with a Holley fuel injector & computer ..
[Modified by Don&Kelly, 7:27 AM 11/13/2002]
[Modified by Don&Kelly, 7:27 AM 11/13/2002]
Race Director
Joined: Dec 1999
Posts: 16,945
Likes: 9
Re: On Board Computer help 1981 Corvette (Don&Kelly)
Remove the orange RAM power lead that runs from the ECM to the junctionblock next to the battery, with that wire disconnected the whole ALDL (or ALCL for 81) system is disabled.
Marck
Marck
Safety Car
Joined: Jul 2001
Posts: 3,921
Likes: 2
From: York PA
Re: On Board Computer help 1981 Corvette (Don&Kelly)
The ECM has 2 Plugs, it is located between the battery and the drivers seat. You can reach the two plugs on the ecm from the passenger side compartment if you don't want to remove the battery. This would completely remove power from the ECM. :cheers:
