[Ruthlesszl1]

I have a 2020 zl1 catless tuned on flex fuel and I started getting this code after letting the car sit for awhile I thought maybe a o2 sensor was acting up so I switched them to see if the code would then show on bank 2. The code has stayed off for over a month and multiple drag strip trips but last night Decided to come back on. Everything seems to run great actually got a new personal best at the track last night and then after airing up at the gas station it popped up again. It seems fine it’s always had a little stumble here and there at idle but nothing crazy and my intercepted gauge doesn’t show any misfires when I check. Has anybody else dealt with this or have something I should be looking at? Would a catch can help possibly I’m just lost because the car runs great? Thank you!

Chevy Camaro P2096: Post Catalyst Fuel Trim System → Too Lean → Bank 1

[ctrlz]

This indicates a lean condition. Hook up a scan tool and check fuel trims.
If trims are OK check for air leaks where you did the cat delete.
This code specifically refers to a lean condition at the secondary O2 sensor.

Since this code "comes and goes," I would bet air leak.

[Ruthlesszl1]

Originally Posted by ctrlz

This indicates a lean condition. Hook up a scan tool and check fuel trims.
If trims are OK check for air leaks where you did the cat delete.
This code specifically refers to a lean condition at the secondary O2 sensor.

Since this code "comes and goes," I would bet air leak.

I’ve checked everything I feel like and also the interceptor gauge is showing some slight misfires mostly when idling and cold but a few random ones here and there I haven’t seen it show over 5 though I went through and tightens everything I could up I emailed the tuner but haven’t heard back.

[ctrlz]

Maybe try wrapping some of that exhaust tape around the cat delete joints in case there is a leak you can't see. That stuff is cheap enough.

[Ruthlesszl1]

I have the arh 2 in long system it has one of the almost like ball socket joints where it connects

[Ruthlesszl1]

Also my interceptor is getting some misfires more so when idling across all cylinders haven’t seen it go above 6 though is this normal

[ctrlz]

Originally Posted by Ruthlesszl1

I have the arh 2 in long system it has one of the almost like ball socket joints where it connects

Leaky schmeaky!
https://www.camaro6.com/forums/showthread.php?t=589791

[Ruthlesszl1]

Originally Posted by ctrlz

Leaky schmeaky!
https://www.camaro6.com/forums/showthread.php?t=589791

Thank you so much man I’m going to try this tonight I thought that was a good connection as I took it apart and it felt solid but I’ll try coating it tonight thank you so much!!

[ctrlz]

I have used this stuff on exhausts:
https://www.amazon.com/Permatex-8187...0002UEOPA?th=1

[Ruthlesszl1]

Originally Posted by ctrlz

I have used this stuff on exhausts:
https://www.amazon.com/Permatex-8187...0002UEOPA?th=1

I went looking for that one but they were out so I got the red one that says up to 2000 degrees I coated it last night and I’m driving around to see if it clears itself but that joint was definitely leaking I’m just wondering if the random misfires here and there are due to the pcm adding fuel because it thinks it’s lean.

[Ruthlesszl1]

Also I have the aero force interceptor gauge what am I looking for on the fuel trims I’ve never checked those before I mean I’ve looked I just don’t really get what I’m looking at but bank 1 is usually higher than bank 2 by a few numbers