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Re: TPI '165 pulling timing after Cold start



Before even trying to diagnose the system you should have it close to right.
Unless you have the flag disabled for the ESC test you need to figure out
why it's not setting a code.
Grumpy



> Why does my '165 seem to pull about 15~20 deg of timing out after cold
start and
> leave it out until I am running up the road a ways?  I have tried a few
> different stock calibrations, namely ARAP, APYP, and APYN - I believe all
those
> are '89 code.
>
> BTW, can anyone tell me the application for APYN - I have been looking for
a
> downloadable '89 305 auto, code to start with (I just got my EPROM eraser,
so
> let the games begin!)
>
> Anyway....  This removal of timing causes some nasty derivability problems
when
> cold (as well as a nasty exhaust rasp) and I can't seem to get rid of it.
I
> haven't figured out the exact event that is causing the timing to go back
in
> when it does (maybe CL?), for obvious reasons, this event is hard to
catch.
>
> Right now I have the knock sensor disconnected, and the ECM is setting no
codes
> of any kind.
>
> Thanks
> Gabe
>
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