Diagnosis steps & tools?

[Bruce Plecan]

-----Original Message-----
From: Terrill Yuhas <tyuhas at mail.arl.arizona.edu>
To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
Date: Monday, February 08, 1999 4:53 PM
Subject: Re: Diagnosis steps & tools?


>Are O2 sensors cleanable or did I read that wrong?

There was a procedure for doing carb'd engines O2's, but none
worthwhile that I've found for gm EFI.

 Is there a manual that
>documents cleaning the IAC or is it sufficient just to unbolt it and spray
>it out with cleaner?

On the gms, the pintle shaft rides on a little plastic insert to keep it
from spinning rather than unscrewing.   It's real easy to FUBAR that
little plastic insert (been there, and have many T-Shirts to show for it)

If you really have a need to play with it, get a Stepper Motor Controller
Kit, and slow it down, and use that to install, and remove the pintle.

Usually a quick zap of carb cleaner is fine.  If there is so much carbon in
there that that isn't enough get a new/replacement IAC.
Bruce
 The car-specific manuals (Haynes & Chiltons) I have
>show how to remove the IAC but not how to dismantle it.
>
>Terrill
>