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my 1999 ml320 has had an lpg conversion for 2 years, and up to last week was running fine. Over the course of a week it began to feel more and more underpowered, both on log and petrol, until one day it barely started and when it finally had it ran weakly and hesitantly on lpg. I've changed the...

i have a 2003 sl350 which has had a new bosch mass air flow sensor and 2 new coil packs but it is still misfiring and throwing up the same codes p2017 self adaption of mixture formation for right bank of cylinders at limit values (at idle speed) as well as p0300, p0301, p0302 could it be that...