Question about Hyundai Sonata
Posted by Anonymous on
Sounds more like vacuum or intake gasket leak to me. Ecus do not cause that kind of behavior.
Posted on Jul 05, 2017
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Posted on Jan 02, 2017
tried testing the igniter also i would look into the injector, that will cause a single cylinder misfire and probably is your problem?misfires are not noticeable at higher speeds, which im sure you know but i would go that route, could have a pinched injector or a stuck one. one easy way to test is swap 3rd injector with another and see if that one starts misfiring instead, another rought is to get a cheap auto stethoscope and put it to each injector to hear if its opening and closing, compare with others. good luck.
Posted on Dec 11, 2008
If you are asking about the battery light, there is a battery temperature sensor at the front of the battery tray to the right of the battery holddown hardware. If the snow loosened the wires or blocked the airflow to the sensor, the battery light will come on. The battery and alternator voltage can be correct, and the sensor will make the light come on.
Posted on Mar 14, 2009
SOURCE: 91 LEGACY STARTED RUNNING ROUGH
The cylinders are numbered as on the spark pack you changed. You might have done better putting the seafoam in the tank as an injector cleaner. Not sure why you changed so many parts, you seem to know how to get the codes from test connector lead hookup and the blink pattern. You might also want to check the fuel rail pressure and the crank and cam angle sensors. Before replacing the injector, swap the #4 injector with the adjacent one and see it the code moves with the injector or stays put. If the code stays on #4, then check the injector wiring, if it moves clean or replace the injector.
Posted on Mar 21, 2009
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