• Check EGT-ALL-FF switch setting (and connections).

• Check connections/crimps between instrument and fuel flow transducer. With the transducer unplugged from the FF harness, you should see around 12v +/- on the 'red' wire and 5v on the 'white' signal wire. If you do not see these voltages on the FF harness, then varify by taking these voltages off the EDM Fuel Flow pigtail itself. (Refer to your instruments install manual for pin#'s.) You may have a faulty harness. If you do not see these voltages off the instrument itself, then send in for repair. Call for RMA number before sending.

• Check with Fuel Flow Tester to verify that the instrument is working and the transducer connector is getting power and ground. This tester can be purchase at JPI for $35.00. Call the Sales Department at: 800-345-4574.