dc_justin
September 3rd, 2006, 10:59 AM
I had a couple of wierd occurances for me today. In the process of AutoVE'ing a 2 bar custom OS. I've disconnected the bank 2 front O2 sensor and have my LC-1 installed there for the time being.
Driving along today, just in cruise cells, all of a sudden the truck felt like it dropped half into DFCO. Checked the log and the wideband went very very lean and the left bank started to switch like it was in closed loop.
Bank 2 sensor went from reading a default 440mv to reading over 1v, causing the pcm to pull all fuel from that bank.
Closed loop temp enable is set to max temp. LTFTs are disabled, STFT Idle Enable is disabled, etc, etc. OL tune has worked perfectly outside of this (other than trying to get the VE IAT multiplier nailed down for the metal magnacharger intake manifold)
This happened twice today, both times on the second run cycle after a re-flash, so the CEL was on in both situations... Any ideas? I've posted up a screenshot of the situation...
Driving along today, just in cruise cells, all of a sudden the truck felt like it dropped half into DFCO. Checked the log and the wideband went very very lean and the left bank started to switch like it was in closed loop.
Bank 2 sensor went from reading a default 440mv to reading over 1v, causing the pcm to pull all fuel from that bank.
Closed loop temp enable is set to max temp. LTFTs are disabled, STFT Idle Enable is disabled, etc, etc. OL tune has worked perfectly outside of this (other than trying to get the VE IAT multiplier nailed down for the metal magnacharger intake manifold)
This happened twice today, both times on the second run cycle after a re-flash, so the CEL was on in both situations... Any ideas? I've posted up a screenshot of the situation...