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Discussion Starter #1
hello,

after JRSC and BBK install, my car put´s out a dtc troublecode. my SCT X2 said P0303 - Missfire Cyl. 3 .

i geht this troublecode only after start up the enginge in the morning.
i have changed my sparg plugs, but the trouble code is still there.

the troublecode doesn´t came when i am driving !!!

what could be the reason ???
 
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