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I have just bought a 2009 LCI 318i, with the N43 2.0l engine. (before anyone spits flames, I got it REALLY cheap!)
I bought it with a misfire that comes and goes. When cold it is at its worst, with the gearstick and cabin vibrating at idle. After it warms up it gets better but is still bad, however sometimes it disappears almost completely and pulls hard to the redline, but most of the time it is a pig to drive, with no power and struggling to rev/idle.
I have proof the previous owner replaced the Coilpacks, Plugs and injectors, Both fuel pumps and High and low pressure senders, plus both lambda's with genuine parts. He has told me that only the NOX sensor was yet to be replaced.
I have INPA, and a full scan shows 3 main codes - cylinder 1 + 3 misfire, and random multiple misfires probably caused by the first two codes.
I really dont want to fork out £300 for a sensor to find out it does naff all!
And I find diagnosing bits with INPA a lot harder than working with VCDS for VAG cars!
Any ideas chaps?
Thanks, Tony.
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