89 dpfi hatch going vtec

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zackzerr

New Member
so i have already done the dpfi to mpfi conversion. and now im putting a obd1 d16z6 head on my zc. i had a 90 si with a mini me in it and could not get it to crack vtec. do you have to have a external vtec controller when you use the obd0 harness with the jumpers for the p28 and dizzy?
 
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