My guess is that if the throttle body switch malfunctioned at idle,
the ECU would tell injectors to stay open longer, (too rich) which
should just flood the engine and cause a stall.

IIRC, the switch is closed at idle and WOT.

I would think the issue is somewhere at cable, linkage etc. Or, since
engine was in/out maybe drivetrain shifted and pulled on the cable?

Neil.

On Thu, Oct 10, 2013 at 9:44 AM, John Meeks <vanagon@gmail.com> wrote:

> I had this same problem about a year ago (intermittant) and 'fixed' it with
> a new throttle cable and cleaning out the rust and dirt from the pedal to
> cable housing. Now it's back!
>
> Side note  just put the engine in after head gaskets and ring replacment
> and It was running great for the past week.
>
> Could the TPS be the culprit if it made the ECU see full throttle and ECU
> then enriched the mixture?

--
Neil n

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