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Alright so, this started about 7 months ago, and I've been swapping parts out cuz I've been getting different codes.

>Bout 7 months ago, got a CEL light, said MAF issue along with system too lean, system too rich Vibrates on idle, stalls out.
> I previously put a cheap MAF cuz after I changed to a cold air intake cuz the old MAF was throwing a code.
>Replaced MAF
>CEL still on this time it said system too lean, system too rich , o2 sensor bank 1 sensor 1 issue. Replaced with OEM part
>CEL still on, Vibrates on idle, stalls out. Said System too lean, system too rich ,and a couple other things, which pointed towards a thermostat issue.
> Replaced thermostat
> Car started running better, held up for a few days but still vibrates on idle, stalls out. CEL came back on, system too lean, 02 sensor bank 1 sensor 1 issue.
> Replaced O2 sensor with another OEM part.
> Still vibrates on idle, stalls out. CEL back on.
>System too lean, system too rich without o2 sensor code this time, replaced intake gaskets (just the rubber thingys).
> Still vibrates on idle, stalls out. CEL back on again, this time says system too lean at idle with o2 sensor and bank 1 sensor 1 issue.

*Ofc, after every time I put on a new part, I cleared codes.

What the hell do I do? I'm running out of options, could this be a problem with the catalytic converter? I mean there could be a number of things that could be wrong with this, I havent yet checked for vacuum leaks but I'm hoping that because I've replaced the gaskets it shouldnt have a vacuum leak.

Thoughts?
 
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