its a 1992 es300 3vzfe engine
when leaving work yesterday the car picked up a miss in one cylinder but still ran good enough i felt to get me home the 25 freeway mile drive, as i was getting ready to exit the highway i shut off the cruise control (from 75 mph) at the exact same time the engine shut down, i may as well had turned off the ignition switch? the car didnt stutter backfire or anything just dead.
after getting it home i checked for spark with a timing light on the #1 cylinder against the timing mark while cranking and it was perfect?
also checked for visable spark on the #2 plug and that looked a very bright blue? then tried spraying starting fluid in intake while cranking, nothing.
loosened the banjo bolt on the fuel rail and seems to be plenty of pressure spraying only while cranking, pulled one spark plug after cranking and it was wet with gas?
no restrictions visable in air intake?
on the way home there was no check engine light, after getting it home i used a paper clip to read codes, #12- engine revolution signal missing, #24- intake air temp fault, #41- throttle position circuit fault, #52- knock sensor fault.
i checked every fuse i could find under the hood and inside, all good.
i also have another thread going in this section titled
"1992 3vzfe overheating quick"
the other thread is a problem but i dont believe the two are related, as i pulled the thermostat several thousand miles back and the car has been running perfect except one notch cooler on the temp gauge.
could use any and all help.... please
****************turns out that under the distributer rotor bug the voltage ate through the bug housing and started to ground out on the distributer***************
the odd part was that i had good spark on #1 and #2 plugs, when i removed #2,4,6 all at once and cranked engine i noticed that the spark diminished on #4 and was gone by #6 (maybe from draining the condenser) ?
this prompted me to start checking the resistance on the igniter, coil, and pick ups thats when i removed the bug and seen where it had arched out the bottom side of the bug and went to ground...
i can only assume that at highway speed it made enough voltage and at higher RPM was able to over come the partial ground until i shut off the cruise and dropped in RPM ?
i want to thank everyone who posted replys to my thread as it really helped me to think outside the box and get this solved much much sooner than i would have on my own.
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