Valeo / Ford 4pin wiring

Wiring best practices and loom building technique
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pinkracer
Posts: 4
Joined: Sun Aug 19, 2018 3:29 pm
ECU Model: S40 Pro

Valeo / Ford 4pin wiring

Post by pinkracer »

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
katana
Posts: 455
Joined: Sun Jan 27, 2013 6:08 pm
ECU Model: S60 Pro
Firmware Version: 29

Re: Valeo / Ford 4pin wiring

Post by katana »

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!
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
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Re: Valeo / Ford 4pin wiring

Post by Alex DTA »

Fourth pin on Valeo/GM coils is for noise isolation on OEM wiring.
Not generally used on aftermarket ECUs.
katana
Posts: 455
Joined: Sun Jan 27, 2013 6:08 pm
ECU Model: S60 Pro
Firmware Version: 29

Re: Valeo / Ford 4pin wiring

Post by katana »

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 ? :?
Alex DTA
Posts: 1622
Joined: Fri Feb 28, 2014 1:03 pm
ECU Model: S40 Pro
Distributor: DTA
Firmware Version: 79

Re: Valeo / Ford 4pin wiring

Post by Alex DTA »

Pin 4 isn't used.
pinkracer
Posts: 4
Joined: Sun Aug 19, 2018 3:29 pm
ECU Model: S40 Pro

Re: Valeo / Ford 4pin wiring

Post by pinkracer »

Thanks guys for the help
Dave
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