Engine Light + Tractor Idle - Help

**cantfind1** · 03-05-2010, 04:28 AM

Sounds like a coil with the symptoms you are experiencing, lambda sensor would not produce that rougher running, and cats should not have failed so soon. Easy to diagnose which coil it is. Remove strutbrace, microfilter and housing, rocker cover, replace oil cap and breather tube from oil separator. Start engine then starting at coil 1 remove and note any change in idle or if engine cuts out. If there is a change or it cuts out it is not that coil. If there is no change then it is that coil(or spark plug). Once you have identified the coil you can then swap them over to see if it is the spark or the coil.

If you have the Bremi coils then just replace all six they are useless and will all go eventually.

Hope this helps.

03-05-2010, 04:28 AM	#11
cantfind1 S5, Sport Off, DSC M-track Join Date: Oct 2009 Location: Sydney Australia Posts: 675 Casino cash: $6490	Sounds like a coil with the symptoms you are experiencing, lambda sensor would not produce that rougher running, and cats should not have failed so soon. Easy to diagnose which coil it is. Remove strutbrace, microfilter and housing, rocker cover, replace oil cap and breather tube from oil separator. Start engine then starting at coil 1 remove and note any change in idle or if engine cuts out. If there is a change or it cuts out it is not that coil. If there is no change then it is that coil(or spark plug). Once you have identified the coil you can then swap them over to see if it is the spark or the coil. If you have the Bremi coils then just replace all six they are useless and will all go eventually. Hope this helps.