If the fuse keeps blowing, you probably have a short to ground in the power dircuit. You can make a few checks here. Start by pulling the EEC power relay. See if the fuse still blows. If it does, you have a problem in the power distribution box. If not, you need to check the 12-volt supply wire for shorting to ground. This is a RED wire that goes through the EEC system to provide power to the injectors, HEGO sensors, and some of the actuators. Disconnect the 60-pin connector at the EEV processor, and check for short to ground at pins #1, #37, and #57.
You can get a halfway decent diagram in the Haynes manual for your car, or in the Ford Electrical and Vacuum troubleshooting manual. The Haynes manual is easier to get, and a lot less expensive. You can get the Ford manual from places like eBay.
Saturday, May 30th, 2009 AT 5:09 AM