Everytime you make a change to any part of the fuel delivery system or air flow you need to adjust mixture! It is in no way automatic on a Mechanically Fuel Injected Engine. Even changing the fuel filter requires this and going to a higher flow air filter as well. And surely changing the injectors changes how fuel flows into the chamber! Adjust air/fuel mixture using a VOM. If you have one then you do not need a new one! I have adjusted the mixture so often on my M102 motor due to changes that I have it down to a less that 5 minute process!

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~Jamie
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2003 Pewter C230K SC C1, C4, C5, C7, heated seats, CD Changer, and 6 Speed. ContiExtremes on the C7's.

1986 190E 2.3 Black, Auto, Mods to come soon.....