Hi all, I did some logging today with datamaster, and I noticed that the long-term C count(BLM) was fairly low, I was wondering if someone knows what can cause that, and what do I need to look for in order to fix it, besides burning a new prom. I added an image of the data logging, so you can see the data, maybe there is something else that is not right that I should know about.
The car is mostly stock 305 with 180 stat and 180 fan switch, and gutted MAF.
Thanks in advance.

 

any codes? an adjustable fuel pressure regulator and lowering fuel pressure helps a little, otherwise you need a tune.

 

Are you suggestion cross counts are BLM? I was not aware of a relationship.

there is I found this in stickies from RBob

" The INT is updated whenever an O2 sensor x-count does not occur within a certain time frame."

 

Thats what I understood from reading few threads about the subject over here.
Long term cross count=BLM
Short term cross count=INT
But anyway, I got bigger issues with the car right now, but that would be belong to a different thread...

 

This is a good read on all that is involved with NB02 feedback.....

https://www.thirdgen.org/forums/diy-...uide-book.html

 

Everything seems to point to a motor running rich. The BLM is bottomed out and it looks like the INT isn't high enough to pull it up. I'd look at adjusting my IAC counts at idle. 54 seems a bit high so you could start by adjusting the Min Air.