Possible eratic narroband o2

[hot308vb]

hey guys
can someone please check out my log & see if the o2 sensor is dicky as it seams to spike up & down constanly and im not sure if its correct or not, i was just sitting idling with a few revs thrown in. much appreciated!
cheers
Rob

[hot308vb]

sorry i should have put that im using 12P with the latest plugin

[VL400]

It does look a little lazy but its prob better to got a for a drive and log it. During closed loop it should swing rich/lean and be generating cross counts. At idle it wont swing as the ECU shouldnt be commanding closed loop fueling anymore (after 20 seconds idling is the stock setting). It should be a tad richer than stoich and O2 voltage somewhere over 450mV - but if you have extractors and a non heated sensor it may mean it does not read well at idle due to a lack of heat.

BTW, it appears to be logging fairly slowly? Are you getting around 10Hz or less? TP is showing about 4Hz from the timeline.

[hot308vb]

Thnx for that vl ill log some driving to and from work tomorrow and check it out. My clubby has the std hsv pipe extractos and factory o2. And no ive always got between 8 to 10Hz too

[hot308vb]

Ive just seen what youre talking about it dips down to 3Hz, what could be causing that and how can i fix it?
Cheers

[VL400]

It could be a few things, laptop speed or what you view in tp when logging are the main ones. Try not to have a heap of things open in monitor view or just log with the dash or list view active.