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|3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.|
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Originally Posted by nukeduster
combustion chamber temps are too high.
how are your oil/water temps? got an exhaust temp gauge by chance? what are your EGT's?
check the condition of your spark plugs. it'll tell you alot about the health inside of your engine by looking at them. take photos of them if you can ands post them here..
But worse comes to worse it could be a cat that simply isnt up to snuff of burning off all the excess NOx. Get a catco or magnaflow cat. Those are two brands I trust, other then OEM.
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