How did you run the wideband A/F cable into the car?

[LtNoogie]

I just got a wideband A/F gauge and the sensor unit needs about a 1 inch hole to feed through. The other end is a rectangular plug and needs a 1 1/4" square hole.

I figured the 1" hole would be easer. I'll be getting a bung welded to my midpipe right after the Megan header. The exterior cable with the two ends mentioned above is only about a foot long.

Is there a large enough feedthrough that exists or did you guys drill new holes into the car?

TIA

[CASTREX]

should move this to the FI section

[LtNoogie]

should move this to the FI section

It applies to anyone who wants to install gauges but is looking for a DYI on running wiring into the interior.

BTW. I've already used the hole in the firewall that is next to the ECU.

[PetersRedYaris]

Is there a rubber floor plug? Sorry, I no longer own my Yaris. Also, You could buy a correctly sized rubber gromet and get a 1inch hole saw drill bit...

[Black Yaris]

passenger side, where the floorboard meets up with the firewall there is a hole and grommet that you can use.... I seem to remember, but I am not sure, as I no longer have my yaris anymore and the wife will not let me lay a hand on hers

[LtNoogie]

Thanks, Red and Black Yaris. I'll look under the car.

[thebarber]

Thanks, Red and Black Yaris. I'll look under the car.

what did you end up doing for this?

[LtNoogie]

what did you end up doing for this?

I haven't. It took me too long to change the plugs and the intake, plus clean up the S/C cable that I did not get a chance to get to it. I can't have anything loose in the car for AutoX and having a gauge laying on the floor won't cut it. I think I'll get a chance next Saturday and will take it to the muffler shop. It should be easier to see my options when the car is up on the lift.

[Tamago]

i cut the stock o2 sensor grommet open (secondary) and slipped the wideband in with stock wiring, then glued it back shut