P1670 FORD: ELECTRONIC FEEDBACK SIGNAL NOT DETECTED
POST UPDATED IN June, 2023
P1670 FORD: ELECTRONIC FEEDBACK SIGNAL NOT DETECTED
With feedback, the actual output of a system is compared to the desired output, and consequently, an adjustment is made to the actual output so that an expected final result can be produced. In the case of the IDM (Injector Driver Module), the device in charge of the fuel injection system, provides the PCM (Powertrain Control Module) with the EF (Electronic Feedback) output signal, in order to confirm that the correct timing/duration of the Fuel Delivery Command Signal (FDCS) was received. The EF signal is also used to send diagnostics to the Injector Controller Module and the electrical injectors to the PCM.
The P1670 OBDII fault code is set on Ford brand vehicles when the Electronic Feedback Signal has not been received at the proper time or is not detected at all. This condition occurs because the communication between the PCM and IDM does not exist.
P1670 OBD2 diagnostic code is set for one of the following reasons:
The steps to follow to troubleshoot the DTC P1670 OBDII code are as follows: