Electronic Feedback Signal Not Detected
Table of contents
P1670 FORD Possible Causes
- Open fuse
- Faulty Injector Driver Module (IDM) relay
- Open or shorted Injector Driver Module (IDM) enable circuit
- Open/short in EF circuit
- Open/short in Fuel Delivery Command Signal (FDCS) circuit
- Injector Driver Module (IDM) powering circuits
- Faulty Powertrain Control Module (PCM)
How do I fix code P1670 FORD?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
- The problem means that there is no communication between the Powertrain Control Module (PCM) and the Injector Driver Module (IDM), most of the times the problem is a faulty IDM.
Cost of diagnosing the P1670 FORD code
The cost of diagnosing the P1670 FORD code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1670 FORD Description
The Injector Driver Module (IDM) provides the EF output signal to the Powertrain Control Module (PCM) to confirm that proper timing/duration of Fuel Delivery Command Signal (FDCS) was received. Additionally, the EF signal is used to send diagnostics of the IDM and injectors (electrical) to the PCM.