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Le Mans Master
Joined: Jun 2002
Posts: 8,339
Likes: 24
From: I can walk to MA
If like most early GM computer cars ...
For the 81, you only need a piece of wire and the code list.
The codes are flashed on the "check engine" light.
I'm fairly sure the Chiltons manual has the code list and info
on which two pins to connect on the On Board Diagnostics connector.
For the 81, you only need a piece of wire and the code list.
The codes are flashed on the "check engine" light.
I'm fairly sure the Chiltons manual has the code list and info
on which two pins to connect on the On Board Diagnostics connector.
Le Mans Master
Joined: Aug 2003
Posts: 7,720
Likes: 12
From: Chattanooga TN
You can probably get a Snap-On scanner updated to the early 90s fairly cheap-maybe $500. Then you will have something that will last and you can get live data-although I am not sure on an 81, 82 I know you can. If you can't get live data, then the paper clip blink codes will be adequate.
See http://cgi.ebay.com/ebaymotors/Snap-...14691090QQrdZ1
This one will probably go cheap because it is only updated to 89 I think.
See http://cgi.ebay.com/ebaymotors/Snap-...14691090QQrdZ1
This one will probably go cheap because it is only updated to 89 I think.
Last edited by markdtn; Feb 24, 2006 at 12:46 PM.
