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After warmup shuts off at idle - 1997 Toyota Tacoma

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Stalls hot. what engine of the many??????????????
stalls are complex over 50 causes, have a list. bah list.

pure physics lists are better. (posted 50 times)
1: bad 12vdc to EFI system parts. see lamps dim?Lost elect power.
2: engine compression low, or engine cant pump air.
3: bad spark (bad spark , missing a tuneup? or timed wrong by shop that is dumb. doing said tune up all wrong.
if you attach a strobe light and check static timing , if way off
the cam belt has slipped, again not doing service, and if chain, i see many slipped too. (owner ignores the screams)
4: bad fueling too much or too little.

stuck open EGR main valve
stuck closed ISC ,valve.
The engine must run real well for ISC to work right. its last.
the isc can not control idle if engine is way lean or way rich.
when you turn engines with custom ECU , you find this out fast.
idle speeds is last to work right , AFR is 1st (after spark)
aFR = air fuel ratios.

Posted on Jan 04, 2014


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