- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Its possible that the EEC Relay is bad, the EEC diode or the signals are not processing in the EEC unit itself. Sometimes the Crankshaft signal is missing and it is suppose to tell the EEC module where the crankshaft is, so the correct Fuel injector opens and the correct spark plug fires. Depending on the vehicle, your underhood powerbox may be marked with EEC and Diode. If you have an Owners Manual, look for the Relay box layout. Often the Horn Relay is the same part# as the other relays and can be used to test as a spare relay. A scanner could diagnose the problem if you own one or could borrow one.
There are three kinds of 302s made from 1982-2001.
5.0L HO This engine was used in 1983-1995 Mustangs, Mark VII Lincolns, and some T-birds and Cougars. All Explorer 5.0L engines are 5.0L HO engines as well. They use the 351W firing order, 1-3-7-2-6-5-4-8. Except for the 1983-84 Mustangs, all of these engines are roller cam equipped. They use a reverse rotation water pump and front cover. The 1994-5 Mustang and all Explorers use a unique front cover and water pump.
5.0L Full Size Car This engine was used in 1982-1990 Crown Victoria and Grand Marquis. They use the 289-302 firing order, 1-5-4-2-6-3-7-8. Most of these cars are not roller cam equipped, however sometime in the early 1990s they started using roller cams but retained the 302 firing order. They use a standard (clockwise) rotation water pump and front cover.
5.0L Truck (except Explorer) These engines are similar to the Full Size Car engines, except they use different intake manifolds and camshaft profiles. They also use the 289-302 firing order, 1-5-4-2-6-3-7-8. They also began using roller cams sometime in the early 1990s. They use a reverse rotation water pump and front cover.
Make sure it is not firing.Since you installed the ignition module,the plugs may be fouled out by fuel.If so,replace the spark plugs,and it will start.If there is no spark,the stater in the distributor will be the most likely problem.The stater is the other part that goes out,if the ignition module doesn`t.I hope this helps,let me know if I can help you any more.
I guess my first question would be when was fuel filter changed last? Fuel pressure tested? With an 89 it may be wise to take it for a scan (EEC IV) on that year I believe. Try filter first, then fuel pressure test if that doesn't help, then scan. To start replacing sensors without any codes to tell you where to focus your attention, could cost you more in the long run. It shouldn't cost much for a quick scan for trouble codes. let us know.