need help on a bunch of codes - Mercedes-Benz Forum

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post #1 of 4 (permalink) Old 03-12-2013, 05:09 PM Thread Starter
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need help on a bunch of codes

my 2000 c230 kompressor was running like crap and codes came up for mas and cam shaft position sensor replace the cam sensor and cleaned the mas ran great for a couple hours than started to misfire and stall so i replaced mas now runs worse than ever i now have 7 obd codes p1525 po170 po301 po304 po300 po341 po450 i know what this codes mean but i cant figure out where to start looking does anybody think it could be that i recieved a bad mas please help this will be much appreciated
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post #2 of 4 (permalink) Old 03-12-2013, 05:38 PM
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Whoa, slow down there, pardner.

First, please click user cp and edit details so you can add your vehicle and location to your profile, it's often useful information when you're seeking assistance.

Second, the new member forum is just that, a place for new members to say hi, not really to delve into technical questions about their specific car. For that you'd want to track on down to the W202 forum since that is the native forum for your 2000 C class.

Next, where did you buy the MAF sensor? If it's an ebay special (or a "rebuilt" one) that is the problem. Genuine Bosch from a trusted vendor, otherwise you're just prolonging the agony.

Also, I realize you're probably posting from a smartphone, but stream-of-consciousness run-on posts are very hard to read and many people won't take the effort. Breaking it up into sentences and tossing in a "carriage return" here or there really helps.

Good luck.

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post #3 of 4 (permalink) Old 03-12-2013, 07:12 PM
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post #4 of 4 (permalink) Old 03-13-2013, 03:06 PM Thread Starter
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sorry about that rambling on i replaced the mafs with a new bosch and i cleared 4 codes. but i still have 3 misfire codes po301 po304 po300 i do not know what the prolbem is i cant figue out y i am misfireing spark plugs r pretty new thanks for the help
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