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2007 X3 N52 3.0si Issues
I keep getting a cylinder number 4 misfire code. Sometimes I get a DME code and sometimes I get a Vanos code, but always cylinder 4 misfire. I have replaced plugs and coils and checked all of my ground wires. I have done a leak down test on cylinder for and got 3% leakage. Also switched #4&5 injectors, still cyl 4 misfire. Continuity is good on DME harness wires from unit to coil plug and from coil plug to ground. Idles like crap, runs fantastic.
I used to work at Pelican as a Porsche guy, but the BMW's are not completely in my wheelhouse.
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Last edited by Jason Porter; 03-19-2019 at 11:47 AM..
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03-19-2019, 11:29 AM
