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What is your question?
i am getting misfire codes also p0140 p0170 and p0172 i changed my DS O2 sensor about a year ago because i was getting p0172 and circuit/voltage codes for bank 1 sensor 2 after i changed the O2 sensor everything was ok but few months later p0170 p0172 and misfires showed up and the last to show up after all the other codes was p0140 so im thinking something from the other codes is making the no activity code show and ideas anyone?? car runs ok but losing little power, hesitating up hills, bad smelling exhaust, and when floored car hesitates and begins to misfire once misfiring if i turn the car off and right back on then its back to running ok with no missing only if i punch it will start it missing...thank you very much for any help!!!
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Sounds like maybe a back pressure issue , or a short somewhere Would be happy to check out for you If you could bring it by . A few to many things going on to guess . Best if taken in , anytime you have any kind of misfire . Nothing good can happen if you continue to drive while missing A&M Auto Care 578 Cleveland St Elyria , OH 44035 440-219-4062 Will even be in this Sunday noon -4 June 4th Even if it just to steer in right direction .... Codes can only tell you so much Hope this helps Thanks, Mike