Thread: 93 S10 4.3TBI "Z" 5spd ECM/PROM Questions
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Old 01-13-2006, 03:25 AM   #4
dmbrisket 51
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Re: 93 S10 4.3TBI "Z" 5spd ECM/PROM Questions
when installing a different pcm, you need to keep your prom, or get one of the same number, proms are not interchangalbe, and the same prom stays with the vehical no matter how many computers go in it
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