LS3 MAP sensor and LS1 wire harness???

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Sep 14, 2009 | 05:16 PM

ss.slp.ls1

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From: Orange County, CA

LS3 MAP sensor and LS1 wire harness???

I am going to be using a LS3 intake manifold and I was going to get a new screw in style LS3 map sensor from the dealership, but is it compatible with a LS1 wire harness?
Help is greatly appreciated.

Sep 14, 2009 | 05:52 PM

Jditlfm

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From: Brockport NY

No its not and even with the conversion harness It did not read the right readings. I used a ls1 map sensor plugged that front hole and used vacuum line off the back. No problems since. I speak from experience of chasing that problem down from people telling me it would work.

Last edited by Jditlfm; Sep 27, 2009 at 04:16 PM.

Sep 14, 2009 | 05:57 PM

ss.slp.ls1

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From: Orange County, CA

Quote:

Originally Posted by Jditlfm

No its not and I even with the conversion harness I did not read the right readings. I used a ls1 map sensor plugged that front hole and used vacuum line off the back. No problems since. I speak from experience of chasing that problem down from people telling me it would work.

That's just what I'll do...Thank you very much!

EDIT: What did you use to plug the map sensor hole?

Sep 16, 2009 | 08:35 PM

arwokc

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From: Oklahoma City

Will the LS3 MAP work with the LQ4 6.0L setup with L92 heads and LS3 intake?

Thanks in advance.

Sep 26, 2009 | 07:25 AM

frankmarroquin

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From: Edinburg, Texas

Jditlfm By anychance do you have some pics?

Sep 27, 2009 | 02:36 PM

Jditlfm

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From: Brockport NY

I do not have any pics of this i did it with the intake all ready on the car. I just made a T with the hvac vacuum line so i could have both off the back of the intake.