Seller notes

An engine computer from a low mileage 1994 SIERRA. Must match PROM code: BMSR. Please check size, fit, style, mpn, and electrical connection before bidding. This listing is for one BDXJ engine PROM (also known as chip). When replacing your PROM you must match the 4 letter code on your PROM from your vehicle. Do not replace a PROM with a non matching unit. Check the prom in your computer for the correct 4 letter code BEFORE you make a purchase. This is for one PROM only and doesn't include the en...

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