Studdering @ LOW rpm

ben04

Registered User
i went to get my car's valve cover/timing cover gaskets chagned cuz my car was leaking major oil, after i got it back, she was studdering at around 1500-3000 rpm, in 3rd gear if i put my foot into it.

we changed the 02 sensors and it cleared MOST of it up, the check engine light was on for the 02 sensors for a year i just ignored it.

so its running fine, then today i put my foot into it in low rpm at 3rd gear cuz im too lazy to shift to 2nd into a sharp turn, and it did a bit of a studder again...

what could this be?
 
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