What are normal MAF, Fuel Trim, O2 Readings for 3.0i

[upallnight]

For my X, the long term fuel trims in bank 1 and bank 2 hover around +5, whereas the short term fuel trims hover around 0. See the my video.

https://www.youtube.com/watch?v=ZHfy2QHfL38

[mendes9]

On your RPM / MAF what is the MAF reading is that Kh/h?

[btrvalik]

Originally Posted by 80stech

Looking at your earlier graphs you have to wonder why the long term trim reacts just as quickly as the short term ?? Is it maybe that "long term" isn't really the correct translation for that data and that is what's confusing everybody ?

My mistake - I added some additional data to my collection and it changed the column order - I had a longterm O2 on the bank 2 - now it's fixed.

[btrvalik]

just to clarify.. here is the pre and post O2 sensors for bank 2

[btrvalik]

I may have fallen into the trap of over analyzing. The original recommendation from my indy was to replace the MAF. When I went to order it, BravAuto suggested that I replace CCV and other maintenance items first - correlates with advise here and else where. While I still need and will replace the CCV, it seems to be working properly - and it's cold where I live. Yesterday, I finally gave in and threw a new MAF on - and now my fuel trims have fallen by nearly half after about 10 miles - I'm hoping they will continue to fall as I drive more.

One puzzeling aspect is that my CEL light when off after I tested my MAF with the propane test - and stayed off for the next couple of days / 4-5 trips. The fuel trims however, never came down - LT trims were sitting between 8-9.5 with ST trims bouncing all over. My post cat O2 also bounced around a lot

I must thank Kevin Kay for indirectly getting me to replace my MAF - we have been chasing and went he mentioned in a PM that he's changed everything except the MAF, I figured it was worth a try. Check our these plots.. not ready to call this solved since so many CEL solutions seem to be short lived, but I will report back in a few days if trims keep coming down and no more code - fingers crossed.