Hey everyone,

I got a check engine light with codes P0138 and P0141. After some searching it looks to be either my O2 sensors are bad or some leak.

While listening for weird noises, I hear a constant hissing near the rear passenger side. Internet searching says it could be fuel filter or bad fuel pump.

My question is could this be connected? Or are they separate issues?

Thanks for your input.

Not sure if this freeze frame helps.



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