Sensor identification

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Mar 16, 2008 | 12:18 AM

Pizzano

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Drifting

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From: Henderson NV

Sensor identification

1988 there is a sensor in the head between 1-3 spark plugs, looks like the connection is a green wire with white tracer, looks somewhat like a knock sensor, but I know it isnt that, any ideas.

Sensor looks intacked , but the sensor connection to the Green white tracer wire is broken, do they have connection replacements for these.

Thanx folks

Mar 16, 2008 | 01:51 AM

BAM92

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From: Houston Texas

If it is in the head, sounds like a coolant sensor. Haven't had a L98 in years so I am guessing. On Ebay they sell pig tails.

Mar 16, 2008 | 02:19 AM

Pizzano

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Drifting

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From: Henderson NV

It has a ceramic nipple for the connector to attach to just like a knock sensor.

I looked through the manual and cant find anything.

Mar 16, 2008 | 04:08 AM

Ray Quayle

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It's the coolant switch for the Aux Fan. It is the same connector as the Knock Sensor and they are available.

Mar 16, 2008 | 04:42 AM

Pizzano

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Drifting

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From: Henderson NV

Quote:

Originally Posted by Ray Quayle

It's the coolant switch for the Aux Fan. It is the same connector as the Knock Sensor and they are available.

Thanx, ya I found it in Ecklers, I dont need it hooked up due to the fact that the fans are hooked up to run as soon as the ignition is turned on.

Thanx again folks

Mar 16, 2008 | 04:57 AM

RRT vette

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From: Louisiana

Quote:

Originally Posted by Ray Quayle

It's the coolant switch for the Aux Fan. It is the same connector as the Knock Sensor and they are available.

Mar 16, 2008 | 08:22 AM

AGENT 86

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From: Summerland B.C. Canada

I picked up one at the local auto parts store. Here's a small pic of it.

Mar 16, 2008 | 08:48 AM

BADDUCK

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From: One day you're a Comet...the next day you're dust... Arkansas

Quote:

Originally Posted by Pizzano

Thanx, ya I found it in Ecklers, I dont need it hooked up due to the fact that the fans are hooked up to run as soon as the ignition is turned on.

Thanx again folks

JMO but hard wiring to come on with the ignition is not a great idea. Your engine won't warm up as quickly as it should and it will draw more on your electrical system than need be. At least put the aux fan sensor back to work based on coolant temp. You can get a sensor to go between 1 and 3 plugs for @ $15. They are available for several on/off temps. My main fan comes on at 226* controlled by the ECM. My aux fan come on at 200* and off at 185* controlled by the sensor. This arrangement is working well and I never have high temp issues.