FUEL INJECTION TO CARB CONVERSION

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03-30-2009, 01:15 AM

Dean_GTA

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Car: 1988 TA GTA

Engine: L98 Replaced w/ 350/330HP W/TPI

Transmission: Stock 700r4

Axle/Gears: stock 3:27

FUEL INJECTION TO CARB CONVERSION

What would it take to convert a 1988 fuel injected TPI to a carb setup? I'm tired of all the sensors and headaches! My main concern is for the speedo, and factory gauges to work properly. What do I need to keep? And what can I get rid of?

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03-30-2009, 10:27 PM

five7kid

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Car: 82 Berlinetta/57 Bel Air

Engine: LS1/LQ4

Transmission: 4L60E/4L80E

Axle/Gears: 12B-3.73/9"-3.89

There's a tech article on the topic linked from the thirdgen.org homepage.

Sensors go to the computer. Gauges have sending units. Disabling the computer (which, for the record, is illegal) will not affect the gauges.

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03-31-2009, 01:14 AM

Dean_GTA

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Car: 1988 TA GTA

Engine: L98 Replaced w/ 350/330HP W/TPI

Transmission: Stock 700r4

Axle/Gears: stock 3:27

Re: FUEL INJECTION TO CARB CONVERSION

My car has the factory digital dash. So the dash should work, with the computer disconnected.

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03-31-2009, 10:33 AM

five7kid

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Car: 82 Berlinetta/57 Bel Air

Engine: LS1/LQ4

Transmission: 4L60E/4L80E

Axle/Gears: 12B-3.73/9"-3.89

I haven't personally dealt with the digital dash, but from what I understand from this Board, the ECM and digital dash don't have anything to do with each other.

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