327_TPI_77_Maro

iTrader: (8)

It's been years since I messed around with logging and tuning 6E stuff but I'm back at it. I saw on my first datalog that it appears I may have used the wrong 4th gear switch in the 700R I just built, for this application, NC vs NO. The ECM is showing I'm in 4th gear when I'm not, and vice-versa.

Is there a flag in tunerpro to flip whether it's expecting an NO or NC 4th gear signal? I thought I had read there was a flag for that but it was labeled something not intuitive in the 6E XDF


Also my idle is super lean right now and the O2 drops off to zero volts idling, at which point it looks like the ECM falls out of closed loop. Is it normal for the ECM to drop out of closed loop if it's not seeing any O2 cross counts for an extended period of time (it's throwing the lean flag) or is something else to blame for closed loop cutting in and out in my log?

Thanks

Steve

RBob

iTrader: (1)

Yes, it is the one marked to select an analog MAF:

LC014: FCB $90 ; %1001 0000 Air Fuel Opt Word, W/VATS
;
; Bit 0 = MANUAL XMISSION
; 1 = SINGLE FIRE MODE
; 2 = NO/NC option bit for 4th gear switch (ANALOG MAF METER IN USE, (HLM))

RBob.

327_TPI_77_Maro

iTrader: (8)

Perfect! Thanks! Regarding my car dropping out of closed loop to open loop at super lean idle (no cross counts) is that a normal reaction to having no cross counts and a lean flag? (i have to go check and make sure I'm not confusing parts of the log where it was in highway mode which I think will show as open loop)