I've been having problems with my 00 Sonata with a 2.4L 4 cyl.. Stopped by the auto parts store to run the codes and this is what came up. P0300, P0110 and P0102.. Running rough when started. Have to push gas pedal to start or stalls after running for a few seconds.. Sluggish/jerky starts when leaving for work or after. Runs fine after warmed up. At highway speeds (75 MPH) I get a jerking like the engine is missing or not getting enough fuel and very slow accelleration. I am in the process of replacing plugs and wires and cleaning the mass airflow sensor. Not sure about the P0110 (intake air temperature circuit malfunction) code (possibly due to the P0102 (Mass or Volume air circuit low input) After plugs and wires I'm assuming coil packs? If the mass airflow sensor cleaning doesn't work I'll replace that also. Any other suggestions???
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I changed the fuel filter last week.. No change.. Just changed out plugs and cleaned the mass airflow sensor. Took the sonata out for a test drive and no problems.. I still have plug wires on order though. Wish me luck!
OK, That was short lived.. Went out today and the check engine light came back on. Stopped by the parts store and code P0171 -System to Lean Bank 1. Parts store recommended new O2 sensors. ???
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