I'm getting bored of limp mode triggering now!
I think given the plug change seemed to improve things, I'm gonna go ahead with replacing the coil in cyl 4. Seem to be £50 inc vat and del on Bmminiparts - any one know any where cheaper?
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Car: e91 330d with Viezu map
Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)
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