I am still a little confused from the prior posts. I am using an E67 ECM, vintage air Gen IV with sanden compressor and binary pressure sensor; and understand to use the AC Delco PWM controller.
I am clear on the ECM pin outs:
E67 Pinouts that need to be added are all on the J3 (grey) connector.
AC Pressure Sensor
J3-21 (ground) wire color black
J3-37 (5V) wire color grey
J3-57 (AC pressure signal) wire color red/black
PWM output
J3-49 wire color green
PWM Fan Control Module - AC Delco 15-80803
Pinouts
1) Fan (-)
2) Battery (-)
3) Battery (+) fused
4) Fan (+)
6) PWM output from ECM (J3-49)
AC Pressure Sensor from C6 Corvette
Pinouts
1) ground (connect to J3-21 on ECM - wire color black)
2) 5V (connect to J3-37 on ECM - wire color grey)
3) Pressure signal (connect to J3-57 on ECM - wire color red/black)
My confusing is with the C6 pressure sensor. Here is my question:
To what are you connecting the C6 Vette pressure sensor? Are you still using the the vintage air binary switch with the native wiring, or are you replacing the binary with a trinary and using the additional blue signal wire from the trinary switch as the input to J3-57; or are you keeping the vintage air binary switch and also adding the AC Pressure sensor? If so are you connecting it to the service port on the sander; or are you only using the C6 pressure sensor in place of the binary switch and connecting this to the vintage air harness as well as the ECM?
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