fuel or electronic
Most likely an exhaust restriction, like a clogged catalytic converter. I'm guessing you have a check engine light on due to misreading's by the O2 sensor.
No check engine light. I had put some product in oil to stop leaks (causes gaskets to swell ). I put some gasoline additive in , car had been sitting awhile . Just passed emission test .
I'm surprised you don't have any warning lights; was sure you had a CEL on. Check the throttle body control relay and fuse. If they're OK, it's a clogged exhaust.
Thanks , I will mention this to mechanic I took it to.
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