CEL- Cold Start Bank 1- Map Sensor issue, anyone else ?

mike33176 · 09-02-2010, 05:02 PM

OK, I had a CEL after making 10 hard runs( 0- 160+) 2 weekends ago and it read"Increased Emissions" on the display. It was on for 2 days and turned off. It came back on a week later and turned off again. Took it to Active and the code read "CEL- Cold Start Bank 1". They said it's Map Sensor issue, anyone else had this occur? Any feedback would be appreciated.

JCtx · 09-02-2010, 05:28 PM

'Map sensor'? There's no such thing. Closest thing is a 'MAF' sensor, but we don't have one.
I've read about your issue many times with tunes, so if you have one (most likely), start there. If not, I've also seen it mentioned with bad gas. Do a search of the code. Good luck.

09-02-2010, 05:02 PM	#1
mike33176 Lieutenant 47 Rep 431 Posts Drives: 09 Jerez/ Black, E90 M3 Join Date: Nov 2009 Location: Miami iTrader: (1)	CEL- Cold Start Bank 1- Map Sensor issue, anyone else ? OK, I had a CEL after making 10 hard runs( 0- 160+) 2 weekends ago and it read"Increased Emissions" on the display. It was on for 2 days and turned off. It came back on a week later and turned off again. Took it to Active and the code read "CEL- Cold Start Bank 1". They said it's Map Sensor issue, anyone else had this occur? Any feedback would be appreciated.
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09-02-2010, 05:28 PM	#2
JCtx Major General 258 Rep 5,012 Posts Drives: No BMW yet Join Date: May 2008 Location: El Paso TX iTrader: (0)	'Map sensor'? There's no such thing. Closest thing is a 'MAF' sensor, but we don't have one. I've read about your issue many times with tunes, so if you have one (most likely), start there. If not, I've also seen it mentioned with bad gas. Do a search of the code. Good luck. Last edited by JCtx; 09-02-2010 at 05:55 PM..
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