Coyote O2 sensor wiring routing?

[TXeverydayDad]

I’m planning and measuring where to pull all the wiring in the engine bay. I’ve got it mostly figured out but I’m wondering: how have those with Coyotes routed the O2 sensor wiring to the headers? Passenger side straight down from the PCM? Or routed along the foot box? For the driver side, (obviously lengthened) routed along the top of the engine with the other harness? Along the 3/4” tube? Along the firewall?

Many different options. Any best practices, optimal route?

Pictures would be greatly appreciated!

Thanks!

[dbo_texas]

I've got a GEN2 and didn't have to lengthen the DS. I routed it per the FFR Coyote Fitment instructions for the most part. Worked just fine. On the DS, I did end up routing it in front of the header tubes instead of behind them like shown in the instructions. I have a heat shield and footbox fresh air vent hose in the way so that's just where it worked best for me. Length was not a problem on either side (no extensions needed). My kit is from 2018 so not sure if it changed at all.


For the PS, I routed as shown and it skirts across the top corner of the PS footbox (secured w/ cable clip), then from there its a straight show to the connector on the back of the engine.

[TXeverydayDad]

Thanks Darryl!

The Gen 4x control pack looks quite different. I have a 3rd PCM connector which will practically only be for the o2 sensors. It’s short and will need extensions. I’ll probably just route it along with the other harness around the back of the engine to the DS.

I appreciate the input!
/Sam

[bartock]

My Gen 1 came out of a wrecked donor so the existing o2 sensors had some miles on them. I decided the easiest route was to buy o2 sensors for a same year model F150 coyote. Direct fit but have much longer cables so I didnt need to splice anything or do anything funky to extend them. They were like $40 a piece on amazon

[TXeverydayDad]

My Gen 1 came out of a wrecked donor so the existing o2 sensors had some miles on them. I decided the easiest route was to buy o2 sensors for a same year model F150 coyote. Direct fit but have much longer cables so I didnt need to splice anything or do anything funky to extend them. They were like $40 a piece on amazon

Thanks. That’s good to know. I’m making modifications to the harness anyway so making some extensions is not an issue, but good to know of alternatives!