i need help with my o2 sensor. my ac auto technic oil pres. gauge was installed with the o2 sensor, but now my psi is at 0 when acceclertae it goes up and decelerate goes down lil by lil until it hits 0... i went to my shop and they todl me i need another o2 sensor so ima go check that out.. but i need to know if that is the only problem that may have arrised..
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