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2.0 changing CEL

got a beater 97 2.0 jetta....when i bought it, it was running alil off with a CEL and a rough idle after a about 45 seconds of just idle....got it checked and codes were p1128 (Long Term Fuel Trim mult.,Bank1 System too Lean) and p0341 (Camshaft Pos.Sensor Circ Range/Performance)...now ive read up on the p0341 code and that can be alot but i fixed some vaccum lines and got the codes checked again...now it comes up with p0341 and p0172 (Fuel Trim,Bank1 System too Rich)...does anyone know why it would change from lean to rich like that???

Modified by schubby at 10:25 PM 4-29-2010
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