Hi there we have a wrx 1998 impreza, finally found a 10month on going issue, is that only half the cycle is firing, this is due to the coils not firing , we take leads off say piston 2 and 3 and its fine, 4 and 1 are juttery sparks and not consistant, we have changed the pack but still no difference.

I have heard it can be the voltage going to the one pack that plays up, any ideas guys?????

 

anyone there??

 

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