Where is the EEC power relay on a Mustang?
The EEC power relay for only the engine control computer is on top of the engine control computer located behind the passenger side kick panel. This is the same for all Mustangs from 86-95.
What does the ECT sensor on a Mustang tell you?
The ECT sensor tells the computer if the engine is essentially cold, warm or hot. To ensure the sensor is getting the proper voltage from the EEC make sure the signal wire is getting 5 volts. A faulty ECT can throw code 21 which means reading temps less than 50 or more than 250 (engine off) and less than 180 or more than 250 (engine running).
How many items can be logged in a 93 Mustang?
This has allowed some manufacturers to market cars and parts that are emissions legal (e.g. Kenne Bell – for which Mike Wesley has done work, and Saleen). Approximately 900 items in a 93 Mustang can be changed or logged. For example, during a shift, the EEC might look at spark, load, TPS, fuel, and transient fuel.
Can You unplug the MAF sensor on a fox mustang?
Sometimes you can unplug the MAF sensor when the engine is running, doing this should just about stop the engine from running. Make sure there are no air leaks from the MAF to the throttle body and also make sure your MAF sensor isn’t all clogged up (albeit a dirty MAF isn’t going to completely stop your fox from running).
The ECT sensor tells the computer if the engine is essentially cold, warm or hot. To ensure the sensor is getting the proper voltage from the EEC make sure the signal wire is getting 5 volts. A faulty ECT can throw code 21 which means reading temps less than 50 or more than 250 (engine off) and less than 180 or more than 250 (engine running).
This has allowed some manufacturers to market cars and parts that are emissions legal (e.g. Kenne Bell – for which Mike Wesley has done work, and Saleen). Approximately 900 items in a 93 Mustang can be changed or logged. For example, during a shift, the EEC might look at spark, load, TPS, fuel, and transient fuel.
Where does the power come from on a Ford EEC relay?
This voltage comes from the ignition switch. Power (in the form of 10 to 12 Volts) is always present in circuit 4 . This voltage comes directly from the battery positive terminal across a fusible link on the starter motor solenoid (on the fender). Ground is always present on circuit 1.
What causes the EFI sensor on a Mustang to fail?
These sensors don’t fail very often, most causes could be damage from backfiring, age and oil/carbon build-up. This sensor would produce code 64 in the event the computer finds a failure. You can clean the thermocouple (bulb thing inside the “cage”) with throttle body cleaner and a Q-tip.