Engine shuts down

[navdoc101]

I've had this problem for about 2 yrs now.
I ask this question once before with no response & search is no help.
In the summer time (mostly) when its hot outside & the engine heats up when I come to a stop the engine shuts down.
It restarts immediately on the first try.
If I'm very careful & down shift all the way to 1st when approching a stop light or sign it usually will not shut down.
This does not happen , usually, in cooler weather.
What could be causing this.
Its not major , but annoining as all.

[tac]

Could be leak between air filter and throttle body, Air flow sensor, or any part of the idle bypass circuit. This consists of a bypass port in the throttle body, and idle control valve under the intake manifold on drivers side.

[dalebwilson]

Navdoc, Have you ever checked your engine compression?

[Movin]

What is it ? Carby or fuel injection?

[navdoc101]

Its FI. Its a '93
It does not happen all the time.
In The mornings ,when the air temp is cooler its fine, not problem.
Never checked compression.
It does seem to rum a little rich, if that could be part of it.

[jawja jim]

I have been having a similar problem with mine, as I remembered and mentioned after you posted, in my "miss, hesitation, stumble, lurch- and other such terms" post from yesterday. So I'm following this post, too.

[Dragonhealer]

Are you running A/C? We have a similar issue with Ethel (also '93).

[navdoc101]

Yes. Almost all the time.
But I run the A/C some in the winter.
It is Florida.

[TheFossMan]

Look at the wire on the O2 sensor, Zippy's (92 EFI) wires are old so they don't stay in place like they should. When it would shut down on me, I could turn it right back on and it ran rich for a few minutes and we where all set. So long story short take a look at your o2 sensor

[navdoc101]

I will.
Thanks
Been thinking of replacing O2 anyway, its about 2yrs old.

[Movin]

Is the air flow meter sticky ?

[navdoc101]

Nope, nice & lose like a... never mind.
Its good.

[Movin]

really good!

[ricko1966]

O2 sensors are easy to test no sense throwing away a good. One or changing one just to see if it fixes anything all you need is a propane torch and a multi meter heat it up and watch your meter.

[Victor Lang]

Fuel Pump?