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S5 coil wiring question

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Old 05-23-04, 06:24 AM
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HEAVY METAL THUNDER

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S5 coil wiring question

I am currently installing a S5 TII into my 1st gen RX-7.
To have the engine run on a Wolf 3D EMS I need to install the coils correctly, but can't find out the correct wiring diagram.
The wire colors in my haynes manual are completely different from the coils I have.
Anybody who knows what wire goes where on a stock system?

leading coil:

2 pin plug: red
brown
1 pin plug: black (is this a ground wire?)

trailing coil:

4 pin plug: white
yellow
grey
red

2 pin plug: both are brown

the wolf manual explains all of the trailing four pin plug leads, and the red wire of the leading plug.
all the others are unknown right now.

can somebody help?

Thanks,
Bart
Old 05-23-04, 06:35 AM
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The brown lines are for +12V switched power (usually from the MAIN relay when the ignition is turned on). The pink (red) is the trigger signal, and as you probably know already the white is the toggle for which of the two trailing coils to be triggering. Yellow is for your tach. Grey is apparently not important.

This is from Brian D. Cain's website (http://bdc.cyberosity.com) - he's a haltech guy but the same basic principles apply to all aftermarket ECUs.

Good luck on your install!
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