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IAT sensor and Fuel rail question

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Old Apr 17, 2007 | 08:12 PM
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Default IAT sensor and Fuel rail question

Backround, 2002 LS1 from a SS going into a Porsche 944 turbo track only car.

1st, I assume that the PCM requires the IAT. Given that assumption, and given the fact that I won't be using a SS air box with the OE IAT, does anyone have any suggestions on an after market IAT that plugs into the GM harness, or is it ok to use a generic bosch IAT and splice the bosch connector to the GM harness.

2nd, the 944 uses a return type fuel rail system, the LS1 not. I have an adjustable FPR because of the mods to the turbo engine. Will a fuel rail from a 97 corvette, camaro, etc that is a return type fit on the LS1??

Thanks in advance for the input.
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Old Apr 17, 2007 | 08:27 PM
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I'm actually using this IAT sensor right here:

http://www.diyautotune.com/catalog/s...58fb2b7dd276ac

That's on the car in my sig, so it should work on anything you are trying to do.

As for the fuel rails...the 97 Vette rails are a return style rail, and should also work for you. The 97 Vette was an LS1 - but the 97 F-body was not. The Camaros/Firebirds didn't come out with the LS1 until 1998.
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Old Apr 17, 2007 | 09:05 PM
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Excellent . . . was the '98 F body fuel rail a return or non return type?

Thanks
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Old Apr 17, 2007 | 09:22 PM
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pretty sure 98+ was returnless.
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Old Apr 17, 2007 | 09:26 PM
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Figures

Thx
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Old Apr 17, 2007 | 09:28 PM
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Yep...returnless.
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Old Apr 17, 2007 | 09:43 PM
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So there's no chance that this:

http://cgi.ebay.com/ebaymotors/ws/eB...2595&rd=1&rd=1

would line up with the injectors on the LS1
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Old Apr 17, 2007 | 09:50 PM
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no, u need a 97 vette assembly. thats raisl for the wrong engine
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Old Apr 17, 2007 | 09:54 PM
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Butt of course . . . my luck as usual . . . I guess I beat this to death.

You guys have a great evening.
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Old Apr 17, 2007 | 10:27 PM
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You'll get it...it'll just take some looking around (or you could bite the bullet and get some aftermarket LS1 rails).
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