Quote:
Originally posted by eric305TPI
Is the 730 ECM capable of controlling 2 fans independently? If so what pin does the second relay need to be connected to? Also what pin does the A/C high side pressure(fan control not high pressure cut out)switch go on or should I wire that directly to the fan control relay. |
Yes it can, $8D, SD as used in TPI Y & F body's.
Pin E8 is the primary fan control (stock as used in F body's)
Pin F8 is the secondary fan control (not used in F body's, but in use in Y body's).
Pin D12 is the A/C status input for fan control (stock as used in F body's).
Pin C9 is an A/C compressor signal to the ECM. Not sure what the ECM uses it for, probably IAC idle control.
RBob.
