Bank 2 Lean code...?

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Dec 19, 2016 | 02:02 PM

AdrenalinPlease

Thread Starter

Winching

Joined: Jul 2012

Posts: 547

Likes: 4

From: Jackson NJ

Bank 2 Lean code...?

Bank 2 Lean DTC keeps popping up, first it was intermittent but now every cycle it comes back. any insight?

Dec 20, 2016 | 04:55 PM

EastCoast

Winching

Joined: May 2016

Posts: 614

Likes: 29

Have you looked at your o2 sensors or the cats themselves as a possible cause?

Dec 21, 2016 | 03:53 PM

AdrenalinPlease

Thread Starter

Winching

Joined: Jul 2012

Posts: 547

Likes: 4

From: Jackson NJ

They are present...lol

no but seriously, I am doing live data and the bank 2 sensor seems to be lagging a bit when looking at the mV

also the Fuel Trim long and short is higher and slower moving on bank 2.

Dec 26, 2016 | 01:18 PM

AdrenalinPlease

Thread Starter

Winching

Joined: Jul 2012

Posts: 547

Likes: 4

From: Jackson NJ

any input? what should I be looking at?

Jan 2, 2017 | 11:04 AM

djkronik57

Winching

Joined: Sep 2015

Posts: 531

Likes: 50

From: Boston, MA

Look for any air leaks, vacuum leaks, holes in exhaust piping, missing gaskets in exhaust pre-O2s that could be adding air to the system.

Jan 9, 2017 | 08:20 AM

jpc1818

Three Wheeling

Joined: Sep 2009

Posts: 54

Likes: 2

I would preform a smoke test with a cigar.
Did that on my LR3 and found that my intake gasket was no good.
I did also change my o2 sensors as they were original and I have 253k+ miles on the rig.