Long time stalker, first time poster. Be easy on me.
I'm currently finishing up my installation of a 2004 VVT motor into my 1994 NA. I've completed all the nuts and bolts and have begun the more challenging aspect of the swap--the electrical system.
NOTE: I'm aware that under my current setup I will not be able to control VVT out of the box. I have plans for this in the future. As of now, my main goal is to get the car running.
1.) Ignition Wiring: I'll be integrating the 2004 coil and plugs into my 1994 harness. After much research, I've come to the following conclusions (Please confirm).
(1994 Harness) ------------------------> (2004 Ignition)
Black (Ground) to Black (Ground)
Blue (12v) to Black/White (12v)??
Black/White (Tach Driver)
Brown (Trigger) to Black/Yellow (Trigger)??
Wiring Diagrams Used:
1994 Page 8 http://www.madracki.com/miata/images/wiring/94sys.pdf
2004: Page 11 http://www.boostedmiata.com/pdfs/MSM_wiring%20all.pdf
1a.) What is the best method to wire in the Tach Driver, seeing that the 2004 Coils don't require it? I'll be using the stock ECU.
2.) Wiring the gauge temperature sensor. I know, based on Joe Perez post, that the NA gauge temp sensor is a single wire on the back of the block. However, the VVT motor doesn't have this port. Is it possible to tap the sensor used for the ECU to operate the gauges as well (I have swapped over the NA sensor)? Or have some people tapped this housing and used the stock NA sensor temp gauge sensor?
CLOSED: Thank you Richyvrlimited!
Thanks in advance,