1991 351W - ECT sensor question

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Mar 27, 2007 | 11:22 AM

Dave-A

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ECT sensor

How many are there on a 91 350W...

Last edited by Dave-A; Mar 27, 2007 at 11:36 AM.

Mar 27, 2007 | 11:35 AM

LxMan1

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From: Louisville,Ky.

There are two ECT sensors. The small one with 1 wire is for the gauge and the larger one with 2 wires is for the computer.

Mar 27, 2007 | 11:37 AM

Dave-A

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Thanks - 1-wire sensor it is...

I assume the voltage runs thru the guage to the sensor (which is a variable-resistor, and grounds out to the engine), right?

Last edited by Dave-A; Mar 27, 2007 at 11:40 AM.

Mar 27, 2007 | 04:45 PM

LxMan1

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Yep it sure does.

Mar 29, 2007 | 10:47 AM

Dave-A

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Problem....

I got the oil pressure sender and ECT sender confused....

I cannot find the engine temp sender for the life of me....

The ECT *sensor* is in the middle of the manifold, driver's side...

The temp sender just IS NOT THERE on this vehicle - can't find it or the wire to connect it....