zekew64
Member
- Joined
- Oct 4, 2011
- Messages
- 207
- Reaction score
- 2
- Points
- 18
- Location
- Carbondale, IL
- Vehicle Year
- 1992
- Make / Model
- Ford
- Engine Size
- 2.3L I4, rebuilt from a '91
- Transmission
- Manual
Hey all...I know this has probably been done to death, but I have been researching doing an e-fan upgrade to my 2.3.
The problem I'm running into is two-fold: First, the "fan temperature switches" advertised as aftermarket parts will not work, due to the 2.3 not having any hole drilled in the engine block to mount this kind of thermal resistor.
Second, I want to use the same signal voltage that the PCM uses to turn on the fan circuit (this would be the SIG RET wire at the ECT; it has a lower voltage reading, due to the ECT's resistance).
Does anyone know if an aftermarket controller could be adapted to use the SIG RET voltage signal, as such a controller uses a thermistor (the radiator probe) to turn on the fan circuitry, and I do not want to use another thermistor, when it would be easier simply to splice into existing wiring?
Has anybody tried to work an e-fan circuit in this fashion, and if so, how did you do it?
PS: I have also the option of using my hood light circuit, as I found out that the switch and wiring off of the connector were corroded and shot. For an e-fan upgrade, this would be a second option for low-voltage power and overall circuit ground.
The problem I'm running into is two-fold: First, the "fan temperature switches" advertised as aftermarket parts will not work, due to the 2.3 not having any hole drilled in the engine block to mount this kind of thermal resistor.
Second, I want to use the same signal voltage that the PCM uses to turn on the fan circuit (this would be the SIG RET wire at the ECT; it has a lower voltage reading, due to the ECT's resistance).
Does anyone know if an aftermarket controller could be adapted to use the SIG RET voltage signal, as such a controller uses a thermistor (the radiator probe) to turn on the fan circuitry, and I do not want to use another thermistor, when it would be easier simply to splice into existing wiring?
Has anybody tried to work an e-fan circuit in this fashion, and if so, how did you do it?
PS: I have also the option of using my hood light circuit, as I found out that the switch and wiring off of the connector were corroded and shot. For an e-fan upgrade, this would be a second option for low-voltage power and overall circuit ground.