05 2.7L Kia Sportage with codes for all six cylinders, have a misfires.
Quick history on the engine in this car, it was taken out of a same exact year and model rollover car to replace the engine that had the timing belt break the engine that was put in. Had all six plugs replaced all six fuel injectors, replaced, and timing belt kit installed. Also has had all 4 O2 sensors replaced and mass airflow sensor replaced The car drives fine with no issues, but sometimes has a rough idol, especially coming down from a high idol like pulling up to a red light or stop sign. Not sure Direction to go in from here been suggested to try camshaft position sensor and purge valve.
Had all six plugs replaced all six fuel injectors, replaced, and timing belt kit installed. Also has had all 4 O2 sensors replaced and mass airflow sensor replaced ... been suggested to try camshaft position sensor and purge valve
Were the replacement sensors and fuel injectors OEM?
It would be better to try some diagnosis and troubleshooting rather than further loading up the parts cannon. A diagnostic scan for codes and live data would be a good place to start, though of course you can always check low-hanging fruit such as filters, fuel pressure, and vacuum leaks and clean the throttle body.
@chucktobias no, all parts were not OEM. They were AutoZone special but were replaced because the car was upside down for an extended period of time and spark, plugs, fuel injectors, etc. were soaked in engine oil did thoroughly check for vacuum leaks, and. Throttle body was cleaned, but was also from the original engine that was not upside down
@1590926 Critical parts like sensors and fuel injectors frequently do not work properly from the aftermarket. (I've experienced it myself.) As I said you need to scan for codes and live data to get an idea of what's going on. Throwing parts at a problem rarely yields a good result.
@1590926 You could also take a look at the troubleshooting section of the site FAQ which has information on diagnosing misfires, and more.
