So this weekend I got my car to start and idle using MS but it idles really high (around 2K) and runs very rich (the AFR gauge is reading around 10 or 11). However when I looked at the log I noticed that the afr reading was bottoming out at 7.5 which means its basically wasn't reading anything. I checked all my wiring, switched to a common ground between the ECU and WB, and now the car won't fire at all. The wideband is synced with the MS because when I turn the key to accessory and wait for the WBO2 to heat up, the reading on the computer is the same as the WB within a thousandth. I noticed that when I turned the key to crank the engine the WB power turns off (it was wired to the cigarette lighter) so I rewired the WB to the stock O2 sensor wire which is switched but stays hot during crank.

I've attached a composite log of when my car ran and idled as well as a datalog. I believe the issue is that the MS doesn't know what the AFR reading is during crank so it won't fire but I also noticed that my pulse width is a really high value. Any ideas? I appreciate the help!

My basic setup is:
DIYPNP Nippon Denso 76 pin Version 1.5 with sequential ignition add-on
Innovate MTX-L Wideband
NA alternator swap reading 14v at the battery
Toyota COP conversion
Stock injectors (rx-8 injectors ready to install)

 

AFR readings have nothing to do with starting. AFR readings are meaningless unless combustion is taking place. Your issue(s) is elsewhere.

EDIT: Is this the same subject as your other thread? Is your issue bad idle, or lack of start? I don't have means to open your attachments this week, so I'm only trying to help you clarify your request. My above answer concerns lack of start.

 

I believe that this is a separate issue than my other thread. I tried to comment on that one that it was solved, due to poor wiring on my part, but when I tried to post it said it had to be reviewed by a mod before being posted. I apologize for being new but it was my understanding that if you have a different issue you make a new post but if need be this post can be deleted and I can continue on my first post.

After fixing the wiring issue on my board I was able to get the car running, so I would classify the issue as bad idle instead of lack of start, although I did have an issue with lack of start due to a dead battery (duh).

I've attached a screenshot of a datalog. In my opinion the red flags appear to be AFR, PW and MAP but I'd love your take on it.
(the 13.5 max AFR is before the car starts)

 

I'm doing back and updating my old threads. I'm truly living up my my username on this one, I forgot to load the base tune back onto the megasquirt after updating the firmware I believe.