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Author Topic: oh dear, not another EM fault !!  (Read 972 times)

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bth2bth2

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oh dear, not another EM fault !!
« on: 30 October 2008, 17:54:06 »
hi all,
all's been well so far with my mv6 but yesterday em light started to flicker on/off at idle and also when under initial load.she also has started to misfire at idle and under load.not done any tests yet cos its too damn cold n wet....anybody got any ideas?
help is always apreciated.
brian :-/
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rickyboy

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Re: oh dear, not another EM fault !!
« Reply #1 on: 30 October 2008, 18:32:55 »
First thing is paperclip test (you'll find instructions in the maintenance guides).  Check for oil in the plugwells.  Most likely plugs, leads or dispack but could be a dodgy injector wire as well.  Post up the results from the paperclip test first.
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bth2bth2

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Re: oh dear, not another EM fault !!
« Reply #2 on: 30 October 2008, 20:48:05 »
cheers ,will do a test asap. did cam cover gaskets a few months ago also changed plugs and leads...hope its not the dispack.!!
thanks again
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bth2bth2

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Re: oh dear, not another EM fault !!
« Reply #3 on: 01 November 2008, 21:37:09 »
just a note......
i was thinking about my problem and i sussed that the fault started after id put some fuel in at my local fuel station.id filled my bike up too a couple of hours earlier.i thought the bike was running a bit iffy going to work but put it down to a bit of carb icing.(kwaks are prone to it) anyway...i decided to run the tank down as low as pos and put some more fuel in from a different garage + some stp system cleaner. low and behold the miss fire has all but gone and no em light.
the message is beware shit fuel !!!
 question....am i right in thinking that if the engine miss fires due to an ignition fault the catalist sensor would send the em into safe mode?

thanks
brian ::)
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feeutfo

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Re: oh dear, not another EM fault !!
« Reply #4 on: 01 November 2008, 22:08:02 »
Quote
just a note......
i was thinking about my problem and i sussed that the fault started after id put some fuel in at my local fuel station.id filled my bike up too a couple of hours earlier.i thought the bike was running a bit iffy going to work but put it down to a bit of carb icing.(kwaks are prone to it) anyway...i decided to run the tank down as low as pos and put some more fuel in from a different garage + some stp system cleaner. low and behold the miss fire has all but gone and no em light.
the message is beware nuts fuel !!!
 question....am i right in thinking that if the engine miss fires due to an ignition fault the catalist sensor would send the em into safe mode?

thanks
brian ::)
I dont beleive your car will sense a missfire. 2.2 3.2 and 2.6 do as they are obd2 and that list of codes,  includes missfire codes that are cylinder specific. If your car is obd2 4 digit codes then it will. If its not, flashes 1.2 three times for diagnostic start, then afaik it wont.
« Last Edit: 01 November 2008, 22:14:57 by chrisgixer »
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VXL V6

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Re: oh dear, not another EM fault !!
« Reply #5 on: 01 November 2008, 22:08:45 »
Will sense missfires via the knock sensors.
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