ECU upgrades when deleting smog equipment?

[IRQVET]

So my 1998 Tahoe was a California rig, so it was equipped with a ton of smog equipment and sensors. Fast forward to this year, and I live in an area with no smog requirements. And I was forced to upgrade to the Jegs Y-Pipe due to a rust issue and I removed the cats. I went with the Jegs Y-Pipe because it stated it had the bung holes for the sensors (Half truth) and I attempted this modification to fool the o2 censors:

watch

It didn’t work and the Y-Pipe had bung holes for 2 sensors, but my rig had 3 (Dam you California).

So I’ve been driving my rig with only 2 of the 3 o2 sensors attached, so obviously my check engine light is on. So I’m wondering, has anyone upgraded their computer so the o2 sensors can be deleted completely?

Saw these guys, but don’t know if this can be done?

16258815 | 1998 Chevrolet C/K Series 1500 5.0L PCM Engine Computer ECM ECU Programmed Plug&Play | 16250279

Engine Computer fitting all1998 Chevrolet C/K Series 1500 2.4L models with matching computer part number 16258815. This unit is also compatible with the following part numbers 16258825, 16258835 & 16250279.

www.fs1inc.com

 

[PlayingWithTBI]

So I’m wondering, has anyone upgraded their computer so the o2 sensors can be deleted completely?

@kennythewelder did a trick to eliminate the post Cats O2s. You don't wanna delete your pre-Cat ones, they tell the computer how rich/lean it's running so it can adjust your fueling, giving you better performance and mileage.

 

[618 Syndicate]

You need the pre-cat O2 sensors, but you can delete the downstream ones and turn them off in the tune.

 

[b454rat]

I put spark plug non foulers in my old 98. Light never came back on. Was like that for months before I got an ECM that was tuned, then they turned off the down stream ones. But for $10-15 whatever they cost, worth a shot!!