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Old 11-15-2012, 12:31 PM
nwilson44 nwilson44 is offline
Officially Welcomed to the 'Fest
Location: Humble, Texas
Join Date: Mar 2012
Posts: 306
Mein Auto: 2002 BMW 540i/6
My M60 didn't do that but it was moody when cold too. I put royal purple 20w-50 in it, dinan chip, New o2 sensors, and replaced the resonator with an X-pipe and it was much happier in general and especially when cold. I also did a tune up and changed the fuel filter and added a K&N stock replacement filter. It ran like night and day after all these changes. Just make sure the throttle body is clean and your intake snorkel doesn't have a hole in it. Also check your throttle position sensor.
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