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Old 05-10-2003, 05:32   #1 (permalink)
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test voltages for sensors

Anyone have the test voltages for the engine sensors? Particularly the ISC, O2 sensor, and TPS.
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Old 05-11-2003, 10:51   #2 (permalink)
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EF

<b>O2</b> (60 seconds after start-up, even if engine is warm)
Initial start 0.8V, properly warmed up, will switch between 0.1 and 0.8V

<b>ISC</b> (KOEO): 12V; At idle: 8-11V depending on load

<b>TPS</b> (KOEO): 0.7 +or- 0.15 (closed throttle); 4.0 -4.5 (WOT)
at idle same as KOEO.

This would have been better posted in the Garage, you might get some funny answers in the Asylum!
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Old 05-18-2003, 03:51   #3 (permalink)
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Cheers mate.
Hmm, thought I was in the garage when I posted it....oh well goes to show.
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Old 07-29-2003, 05:56   #4 (permalink)
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Re: test voltages for sensors

Hi guys,

Digging up an old thread!

How about the voltages for an EF 5.0? And how do you measure them: multimeter probe stuck through the wire isulation and the other lead earthed to the car body? My car idles fairly roughly too. I've cleaned out the ISC and put 12 volts to it and it appears to be responding to the voltage. Trouble is, the car won't start without throttle and idle when cold. I'm assuming that the ISC is OK but it isn't getting the correct voltage from the loom.

Thanks for the help, Mike
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