Jose Capeles

Hey, guys! New to the forum. I know someone must have answered or attempted to answer this question before. I purchased an 88 Ford GT 5.0 convertible from a guy who could't turn a wrench. Last season the car would fire right up on a cold start, hot start not so much. I have changed the ignition switch, HEI distributor, solenoid on fender wall, repaired a few lines that were pieced together like a 1930 barn. I have followed a few instructions found on google search, but they are for fuel injected cars. I have power coming from the yellow, brown/pink and red/green wires from ignition switch 12 volts, 12 volts from coil. I however do not have 12 volts on the red/lt green wire going to the HEI distributor. The car turns over but there is obviously no spark. I traced the wire back to the firewall, but the red/ltgreen wire does not trace back to the same wire. It was cut and runs into a larger gauge black/pink wire. When I followed the wire it goes into a connection just below the fuse box under the dash and appears to head towards the fuel pump relay. Also the Radiator fan is controlled from a stand alone switch on my console. I'm above average with a wrench but wiring is a whole other level. Any guidance would be wonderful.

wbrockstar

There's a fuse & a fusible link on the red/lt green wire between the ignition switch and coil.Check fuse #18 & the blue fusible link.The link may be on the wiring that runs down the steering column or on the wiring that passes through the rubber grommet at the driver kick panel area.Make sure the two yellow wires that go to the ignition switch have 12 volts.They power the ignition switch so if they're not putting out 12 volts,the ignition switch won't work and neither will the items being powered by it through the red/lt green wire.

wbrockstar

Haven't had time to go through the following site yet,but you might try searching it for relevant electrical info too for efi to carb conv.

http://www.carbdford.com/forum/

Jeffreycobra

I had a similar issue. Same car same setup. My issue was the MAP sensor ( Little Black box on firewall with vacuum line running into it.) on the center of the firewall. New one of those and she was good to go