Re: 89 S10 4.3 Need help troubleshooting TBI/IAC Idle issue
Thanks, ChevyTech! Yes, I read the links. I'm just clueless, lol! ;-}
But seriously, hot weather and the worst allergies I've ever had are making it real hard to think/concentrate.
I found the post where you list the temp sensor approximate resistance for various temps. It's noon and 76 degrees F outside. I went out and found the temp sensor on the right cylinder head. Set my DVM to the 20000 ohm range and got .004. This looks to be about right, given the ambient temperature and using the closest two resistance value from your list:
332 ohms @ 176 deg. F. or 80 deg. C.
467 ohms @ 158 deg. F. or 70 deg. C.
There is no sign of corrosion or leaking on/around the sensor.
Then I turned the ignition on and checked for leaks and found none. The entire area in and around the TBI is totally dry and no sounds to indicate a leak inside.
What should I do next? I don't want to run the engine if I don't have to.
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