7427 O2 placement question

Hi all,

Been away for a while. Truck has been running decently with occasional random high idle that seems to reset with an ignition off then back on, and occasional lean stumble with a VE spike at 1600rpm/40-60kpa, but more about that in a separate post.

This question is about the O2 sensor location. I'm currently running a heated 3-wire. Vehicle is my 87 R30 with a 454. Swapped over to a 7427 ECU. Stock location for the O2 is in the rear of the driver's side exhaust manifold. I would like to move it further back in my exhaust to pick up both banks of the engine, but the merge is >3' further down the pipe. Will my heated O2 be OK that far downstream?

Why am I looking to move it? I guess just being OCD and wanting to pick up all 8 cylinders vs just 1 bank.

Thanks!

Mark

I don't know what your particular bin calls it but there is a oxygen sensor delay function and you would need to at least double the time in all of the different rpm's if you are going to move oxygen sensor that much further downstream.