top swap LS3 map sensor

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Aug 4, 2009 | 12:35 AM

RyanSws6

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top swap LS3 map sensor

IMPORTANT info, read the last post.

I just got my ported LS3 intake and just waiting for my heads. I also got a custom map extension. Thing is as I went to put in my LS1 map sensor the LS3 intake hole is too big.

I don't want to just shove in sylicone.

Last edited by RyanSws6; Aug 5, 2009 at 01:33 PM.

Aug 4, 2009 | 07:07 AM

Petraszewsky

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Why not just buy a LS3 MAP sensor???( LS3 has bolt/screw hole ) ( L76 clip-on style ) whichever style intake you have....

Aug 4, 2009 | 08:57 AM

sroach20

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you can try to find a fatter o-ring, use a piece of hose to attach it to the back of the intake, or get an ls3 map sensor with a new pigtail.

Aug 4, 2009 | 09:06 AM

RyanSws6

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I know I can go and just buy one but I was wondering if anyone was using the LS1 map. I got the Ls3 bolt in type. I just ordered one.

Aug 5, 2009 | 01:32 PM

RyanSws6

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AS AN FYI:

There are 2 map LS3 sensors, 1 early (LS1 type) and 1 late. I hear there is a TSB on them and this is why they changed the design. I have a new LS3 intake so I have the late style.

ALSO note the late style has a different type plug and needs an adapter. The LS1 type plug will not work. I have a friend who makes the plug and extention. So it worked for me.

Aug 5, 2009 | 03:04 PM

Petraszewsky

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So you're saying there are two different LS3 style sensors ( that bolt-on not clip on.)
Or are you mistaken and thinking of the L76 style sensor versus the LS3 style???

Aug 5, 2009 | 03:34 PM

2K2B4C

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Doesnt Katech offer an LS3 adaptor harness to adapt from Delphi MAP to Bosh MAP?

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Aug 5, 2009 | 09:16 PM

RyanSws6

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I don't know about the Kartech adapter, I only know about the GM issue. There is that slight change in the LS3 early/late intake. I never said L92 because I'm very familiar with it. I can only assume it would have LS1 type since it is a early type.

If I had gotten a reply about the Kartech adapter I would've looked into it. I was just trying to post up some info I found and not take any heat for it.