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      07-26-2007, 09:23 AM   #183
tintivilus
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Drives: E92 335i
Join Date: Sep 2006
Location: Lake County, IL

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2007 E92 335i  [0.00]
2003 325i  [0.00]
Quote:
Originally Posted by HyperM3 View Post
Its not a CEL, that light is the "half-lit engine" light. The Service Engine Soon light is an emissions/exhaust related light. And correct me if Im wrong, but the valve you are now tampering with is quite exhaust related.
Agreed it's exhaust related... but is it affecting the net emissions of the car? The only effect I've heard so far that might be emissions-related is that it might help the cats to heat up faster. If this valve had that big an emissions impact, CARB wouldn't let you have an after-market exhaust without it.

If my dash explodes into technicolor warning lights I'll plug the solenoid back in and ask my shop nicely to re-set the ECM, otherwise I like the change. My only real issue with the stock exhaust so far has been that when there's only one cloud in the winter it looks like a single exhaust with a dummy tip. Likewise, the pasenger-side tip usually gets dirty faster than the driver's-side, which looks kind of odd until they're both pretty black.
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