Holley EFI O2 sensor

Reply Subscribe

Thread Tools

11-11-2019 | 07:19 PM

tmmii

Thread Starter

Registered

Joined: Aug 2014

Posts: 1,025

Likes: 225

From: Ohio

Holley EFI O2 sensor

I believe mine is bad. Previous owner replaced it a few years ago with one from oreillys and said it worked perfect. Of course oreillys is giving me the normal “we can only look it up by car make and model” run around.

Anyone know the part number for a normal auto parts store for them?

11-11-2019 | 09:23 PM

Rookie

Registered

Joined: Jan 2003

Posts: 6,017

Likes: 1,519

From: Grand Rapids, MI

If it's a Holley EFI system you should be using the Holley O2 sensor. They are calibrated to work with their ECU's. They have different resistors wired to be matches with their systems. I took the hit bought bought the NTK wideband O2's. They are more moisture friendly. I also believe they have their own plug end on it.

https://forums.holley.com/showthread...168-Bosch-WBO2

https://www.holley.com/products/fuel.../parts/554-100
https://www.holley.com/products/fuel.../parts/554-101

Last edited by Rookie; 11-11-2019 at 09:43 PM.