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Hey Everyone. I have a 2001 Proton that just hit 80000 miles. Its been happening for a while but during cold startups the exhaust is really white and stinks like fuel. It eventually fades but after a decent time. I have had vehicles run rich before but this seems excessive. Especially since its 4.40 a gallon. haha. Anyone have any ideas of what it could be? I recently replaced the fuel filter and think its way to early for injector problems. I use 89 octane gas.
This may help:
http://www.vehicross.info/forums/sho...t=19793&page=2
Im gonna try the O2 sensor. Ive replaced fuel filter and and plugs already. Thanks.
Here's some interesting reading for Ya (once you get past all of the threadjacking):
http://www.vehicross.info/forums/sho...highlight=rich
It's not running rich, it's burning oil.
Either the valve stem seals are bad and it's burning the small amount of oil that leaks past the seals and into the cylinders when it sits or, more likely, it's burning a small amount of oil all the time but you only get visible, odoriferous emissions when the cats are cold. When they get up to operating temp, they do their job and the light scattering PM/VOC we like to call smoke never makes it out of the tailpipe...
Thank you. Have only had small noticeable oil loss. more When I continuously cross mountain passes snowboard in and hiking. but ill check it out
Keep an eye on your coolant temps and coolant level too. White smoke can mean a blown head gasket. (Which could also be the source of excess oil-burning.)