DTAForum.com - a forum for the DTA ECU

Posted: **Sun Feb 13, 2022 3:59 pm**

Hi, do I need to use all 4 pins on coil pack or just 3? Pin 1 for cyl 1&4, pin 2 for cyl 2&3, pin 3 for 12v supply from ecu.

Thanks

Posted: **Mon Feb 14, 2022 5:51 am**

Strange - I thought all Ford 4 cylinder Coil Packs were 3 pin - 12v in with 1/4 out and 2/3 out ? No idea what the 4th would be for!

Posted: **Mon Feb 14, 2022 8:01 am**

Fourth pin on Valeo/GM coils is for noise isolation on OEM wiring.
Not generally used on aftermarket ECUs.

Posted: **Mon Feb 14, 2022 9:47 am**

Alex DTA wrote: ↑Mon Feb 14, 2022 8:01 am Fourth pin on Valeo/GM coils is for noise isolation on OEM wiring.
Not generally used on aftermarket ECUs.

How do you know which is the extra one ?

Posted: **Mon Feb 14, 2022 4:24 pm**

Pin 4 isn't used.

Posted: **Mon Feb 14, 2022 5:10 pm**

Thanks guys for the help
Dave

Valeo / Ford 4pin wiring