chip code #
Thread Starter
Junior Member
Joined: Sep 2005
Posts: 18
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From: norhern California
Car: 1991 firebird
Engine: 305 TBI
Transmission: 5spd
chip code #
does anyone know the chip number for a 1991 firebird 305 TBI. i dont have my car right now so i cant check it. i wont be able to get the number from my car for a while but i want to order the chip so i can install when i have my car. it is a four letter code stamped on the stock chip.
thanks guys
thanks guys
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Joined: Jan 2000
Posts: 19,660
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Are you asking about a bare PROM? IIRC, that's a 2764, or 27A64, depending on the chip manufacturer.
Or are you looking for the factory burned PROM? The alpha code on the PROM cover/label may have changed from when you acquired the vehicle. Mine did. You won't be able to order a burned PROM by that number, anyway. You'll need the GM 8-digit part number for the "calibrator" designed for your year, model, and engine/trans in your vehicle.
Or are you looking for the factory burned PROM? The alpha code on the PROM cover/label may have changed from when you acquired the vehicle. Mine did. You won't be able to order a burned PROM by that number, anyway. You'll need the GM 8-digit part number for the "calibrator" designed for your year, model, and engine/trans in your vehicle.
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