kuntzie Posted July 23, 2010 Report Share Posted July 23, 2010 ok so i have a 98 monte harness, and i want to swap my obd1 89 car, motorswap.org aint helping me much and i remember a threa on here, i ont think much has to be changed to theunderhood harness IIRC but i have to mod the interior for the ALDL/ obd2 port. anyone have this thread? Quote Link to comment Share on other sites More sharing options...
Dark Ride Posted July 23, 2010 Report Share Posted July 23, 2010 The only thread I know of that was a OBD II swap to a gen 1 was on GMW-body, 3100MPFI has one about his cutlass swap somewhere there. I am actually in the process and it is a bit of work, I spent a number of days researching the C100 pins for both my TGP and the donor vehicle (99 Lumina) trying to figure what is the same and what needs to be changed. Quote Link to comment Share on other sites More sharing options...
jtwmechanic Posted July 23, 2010 Report Share Posted July 23, 2010 you would be better off swapping obd II interior harness too, a little more work with a cleaner outcome, that way your obd II engine harness will pretty much plug and play with only a few repins. i would use the first year obd II gp interior harness with the 98 monte 3800 engine harness and a 99-02 pcm just to get it started and tunable. this should be nothing considering what your gp has already been through. http://sm.gpona.com:9001/servlets/Home this is what helped me the most. Quote Link to comment Share on other sites More sharing options...
Dark Ride Posted July 24, 2010 Report Share Posted July 24, 2010 (edited) I didn't swap the interior harness partially because then I'd need another donor vehicle, and there really isn't any benefit (IMHO) to going through all the work pulling apart the dash to install a harness that's not quite right for that vehicle. In the case of the GP's both mine and kuntzie's are 89-90, and the first OBD II GP was 96 and that had some differences although it might work, I don't know, but 97 was totally different. In my experience the 90 interior harness has the right wiring to get the job done, it just needs a little converting. Of course this is just my opinion. EDIT: Thanks for the link BTW, That totally helped me with another unrelated project. Edited July 24, 2010 by Dark Ride Quote Link to comment Share on other sites More sharing options...
jtwmechanic Posted July 25, 2010 Report Share Posted July 25, 2010 no doubt, when it comes to custom swaps and things of that nature there will always be more than one right way to do things, basically it is a matter of opinion. and yes it is a lot of work to completely factory update a vehicle, i wouldn't neccessarily want to do it either. glad the link helped out. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.