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Auction B58 2018 m240i
I recently purchased my 2018 BMW m240i with 41,000 miles from an auction with a series of problems.
The car had bullet damage that caused multiple malfunctions including not receiving the correct rear wheel speed code.
The car starts fine, with no rough idle or power loss, but white smoke comes from the exhaust on start-up. Oringinally I suspect the pcv or valve cover to be faulty and had them replaced. The smoking stopped for a day but the next morning it started smoking again after a cold start. There are no codes that pop up besides P15DC and P15C8 which is for the rear wheel speed sensor.
Should I go for a pcv delete? Or suspect that it is a possible head gasket or piston ring damage?
With the rear wheel sensor, I have replaced the abs sensor and still have the same codes. Should I suspect I have a bad wiring harness?
I have spent countless hours trying to fix this nightmare, any help is greatly appreciated.
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