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HELP!!! What is going on here??

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gophishy10

10+ Year Contributor
350
7
Apr 17, 2012
Boston, Massachusetts
I have no clue what is going on here. Please help! My afr's are jumping all over, my o2 is weird, and combined ft all over.
 

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I have an innovative mtxl in the front 02 spot running nb sim. I actually just started it back up and ran a log and it seems fine now. I don't know what happened there. I still have some questions though. Why are my o2 volts so square? I seems like everybody else's are round on top and bottom and also fluctuate more often.
Also, (I'll post another log here) if you look at when I'm idling after a cruise, my afr is rich and my ftcombined is about -15%. It stays like this unless I hit the throttle a touch and then it goes to a normal afr and ftcombined. What the heck is this about???
One other one: when I let off the throttle as I'm coming to a stop, or slowing down, my afr jumps all the way up to 22.4. Any suggestions as to why this is happening? This didn't happen until after I put my 750cc injectors and walbro 190 pump in.

Here's what I'm talking about with the idle thing and my ftcombined and afr.
 

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