What is wrong with my car?

[Jayrcr3]

I'm posting a log of my car. Could someone look at it and see what they think is going on? Runs rich as heck, O2's stop cycling and just sit around 900mV. Suspect MAF is failing. Any thoughts as to WTF it is are welcome. Just started running like this in last couple of days.

[joecar]

I can't view your log at the moment...

but if the HO2 voltages are around 900mV then you have extra fuel being burnt for some reason...

if the LTFT's are going negative, then the ECM is trying to remove the extra fuel, but it is not succeeding...

[Jayrcr3]

It's running really rich. I have a WO2 gauge and its reading around 11.9 AFR during light throttle cruise! Under PE its normal 12.7. I have no idea what's causing it. It has to be a sensor or something.

[joecar]

If it just started happening, measure rail pressure with engine running and immediately when turning engine off... this may point to leaky injector(s) or failed FPR.