I bought a tpi setup at a swap meet a few years back from an 85 camaro A while later I bought a used harness on e-bay. I'm now tring to fit it all into my 88 TBI car. I have a bunch of hei's here but I'm not sure what one is correct for my application. I'm betting that I don't want the ones with a vac advance unit. the other style I have has a flat 4 pin plug. I cant find a matching plug on my harness but I do have several cut wires can anybody post a pic of there dist connecter to help me out or do I just have the wrong dist? Keith

 

I just had a thought. I may have a harness that uses a small cap dist. the kind with a seperate coil? does any body know if that stly harness will work with an 85 computer?? Keith

 

keith,
to utilize the TPI harness there should be a distrbutor plug.
now depending on the style of distributor used for the harness
may require a harness jumper.
you will have to have a:
large cap hei with a four wire flat connector and aquire possible
a harness adapter for your TPI harness
or
small cap hei with two solid connector ends. youll need a power harness for
the coil to distributor.
airdeano

 

I mocked the intake and sensors up on an old motor I had laying around I think I have a small cap harness as I can only find 2 small 2 pin connectors in the right area so I need a sub-harness huh?? I am also having trouble with the sensor on the under side of the upper plenum (I'm guessing intake air temp?) I can't find a connector for it. I may just end up buying a painless harness, OUCH more money I don't have!! Keith

 

That is the MAT sensor (manifold air temp), the connector for it looks EXACTLY like the coolant temp sensor connector (sensors are interchangeable) The painless harnesses are anything but painless, both to the wallet and your sanity.

 

That is the MAT sensor. Do this: Go to the ECM connectors and locate F16 (tan wire) and B6 (black wire). This is the MAT circuit. From the ECM connector, follow the wires out through the harness and see if they are cut back. The previous owner may have simply thought it was unnecessary and cut the connector off. All you'd need to do it by a new connector (they're sold at Pep Boys now) and some wire and put it back on. Like Morely said, the connector is identical to the coolant temp, so just get another one of those.

The large cap HEI's (no vac advance) have the flat four pin connectors and require the Corvette wiring harness. The guys here are right, you'll need to get a Camaro/Truck distributor, GM P/N 1103952. Unfortunately, I don't have the coil part number handy.

Check the wires on the two connectors you're looking at. They should have a white wire, a purple/white striped wire, a tan/black stripe wire, and a black/red stripe wire. I believe there should also be an third connector to the coil itself, with a pink/black stripe wire and probably a brown wire.

I have a 1971 with an EFI swap, so I'm simply going off the third gen Camaro manual I bought for the install.