Honda Prelude Forum - PreludeDriver.com

Hey
Im trying to install Field SFC to my lude but im running short on the function of a few wires. I have search all over the net to try to sort out the wiring for this slightly dated vtec controller !! The unit that I got is second hand and was simply cut out of a honda. I have found the online PDF for it but there is 4 wire's for which I still have No function. If any one out there has ever installed one of these could you please bail me out, Thanks.

I have used several sources to obtain what I have so far which is:

(Note: these are the coloured wires that originate from the Field SFC vtec controller's harness)

Black- Ground
White&green- VTM-ECU side
Orange- Map-ECU side
Brown- Map- sensor side
Yellow- Vtec- ECU side
Dark Blue- Vtec sensor
Green- Taps into ICM on the ECU harness, RPM signal
Red - Taps into IGP1 on the ECU harness, Ignition Power
Purple- VSS- ECU side
Light Blue- VSS- sensor side

I still need to find the function of:
Pink-
White&red-
Gray-
White-

If you know the function of any of them it would be great

Thanks for your time

Hi H22A,

I'm going to guess that you actually don't need those wires. If you look further down in the PDF you'll see that those wires are used for the MIVEC signal, which may not be applicable for your engine. Sometimes electronics like this don't actually need all wires hooked up to work. Those wires seem to be for Mitsubishi cars.

Hope that helps.