idle problem

[ttiholov]

on Mon Nov 26 13:22:59 2001 <aaronryba at yahoo.com> wrote:
> My 87 4kcsq had a problem with returning to correct
> idle after downshifting or comming to a stop...
> The car dips down
> to about 400 rpm, almost stalling then jumps back to
> about 1200 then rests nicely at 8-900.

I've got this even with occasional stalling.  Diagnostic code (2312, I
think) says WOT switch, remains to be confirmed by further testing and
tearing it down ... Thanks to Stephan Livolsi, accomplished diagnostician
and car repair adventurer

BTW are diagnostic codes the same for types 44 and 89?

Thanks,
Tihol