Narrow Band O2's......help
Can someone look at this log and tell me why the hell my NBO2's are zeroing out at WOT. I know the tune is off a little bit, but I was trying to mess with it a little before the wideband comes in and something doesn't seem right to me. Also I can't select the PIDS for injector duty cycle, and I can't figure that out either. This is on a cammed, bolt-on 04 Siverado w/5.3 and a 226/226 cam. Any help would be greatly appreciated.
Last edited by Rhino79; October 29th, 2006 at 04:38 AM.
Injector Duty Cycle is a Calc (calculated) PID, it is dependant on Injector Base Pulse Width and needs that info to be calculated. Select those (IBPW) PID's for both banks and your Injector Duty Cycle PID's and your Injector Duty Cycle will work.
WOT your factory narrowbands should be going .9 or so I believe.
Last edited by Beer99C5; October 28th, 2006 at 07:40 PM.
1999 C5 A-4 Convertible
1 of 245 Nassua Blue 99 Vert's, Blackwing, LS6 Intake, 42 # Injectors, Two Stage Nitrous System- Dry and a Wet Plate, EFI Live Scan/Tune V2, 1999 PCM with 2002 COS 5 OS Custom Nitrous Panel.
Maine USA
Yeah, I don't understand why they just fall off like that at WOT. The fuel trims are pretty close but the o2's are reading wierd.
When you go WOT the fuel system changes from Closed Loop to Open Loop at which time the O2's don't trim fuel. The trim value is held over from the point at which you enter WOT.
I suspect that is the case anyway
Andrew
EFILive Crew
Thanks, I am new to tuning so that makes me feel better. I kinda thought that last night because all the other times the o2's were on the money. Thanks again!
No worries, we were all new at some point
Andrew
EFILive Crew
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