[beetler]

I have a 87/88 Corvette motor and using a painless wiring harness with 7730 computer. There is 2 connectors comming out of distributor, a 4wire that the harness plugged into and a 3wire that I don't know what to do with. Ignition and tack are plugged into bottom of cap. Some one told me the 3 wire connector may be for Corvette cruise control???????????
PROBLEM RESOLVED, 3prong plug goes to bottom of hei distributor behind ign & tach plugs can't be seen until cap removed. Thanks

[ May 02, 2002: Message edited by: beetler ]</p>

[Paco]

just looked at my '92 Silverado, which has an '87 Vette TPI engine and trans with a Street and Performance wiring harness in it, but same computer as you have. the four wire connector is for the computer hook up, and the other connector at the base of the distrubtor is a three wire connector with only two wires in it. That goes to the external coil. This is if you are running the small '87 Vette distributor. If not, It's outa my league, don't know. I know the '86 and back Vettes were cast iron heads, the '87 was the first for aluminum heads and the earlier 84-86 TPI vettes had a different distibutor. (I think I got all that info correct)hope this helps..PACO

[Paco]

just looked at my '92 Silverado, which has an '87 Vette TPI engine and trans with a Street and Performance wiring harness in it, but same computer as you have. the four wire connector is for the computer hook up, and the other connector at the base of the distrubtor is a three wire connector with only two wires in it. That goes to the external coil. This is if you are running the small '87 Vette distributor. If not, It's outa my league, don't know. I know the '86 and back Vettes were cast iron heads, the '87 was the first for aluminum heads and the earlier 84-86 TPI vettes had a different distibutor. (I think I got all that info correct)hope this helps..PACO