I've been having an issue with my Sprinter starting on cold wet mornings. It will crank for up to a minute before starting and when it does catch there is a cyclical idle issue for the first minute or so. There is no puff of smoke and it has never failed to start it just takes awhile. If it is dry and cold it starts fine but this is rarely the case here in coastal B.C. I've plugged it into a scanner and found no codes. Glow plugs, glow plug relay and battery were replaced about two years ago. I've been told it may be the crankshaft position sensor or possibly an air temp sensor. Currently has about 145K miles. Any help would be appreciated.
Thanks,
Derek
Thanks,
Derek