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[eliteomegaman]

Will do & thanks again 
If this works i'll leave u a little something in my will 

[tidla]

in the old days carbs and stuff a misfire could be caused due to a weak mixture.
i know with closed loop system its supposed to self regulating..
if excess air is getting in from other than measured sources..
the lambda sensor is registering a rich mix and turning things down..
might by worth checking the exhaust readings.. :-?

[tidla]

in the old days carbs and stuff a misfire could be caused due to a weak mixture.
i know with closed loop system its supposed to self regulating..
if excess air is getting in from other than measured sources..
the lambda sensor is registering a rich mix and turning things down..
might by worth checking the exhaust readings.. :-?

just re read your topic..

1. is the cam covers still leaking?
2.the plenum chamber and associated pipework needs to be checked for splits disconections/ air leaks.
3. no codes.. concentrate on mechanical items.
4 checking/inspecting is cheap.

5 .egr valve sticking allowing dirty air in.
6.idle valve sticking slightly open.