by Don
(Brooksville florida)
spark plugs on cylinder 1&5 keep fouling with dry black carbon.
dealer sent injectors out for cleaning, cleaned vst, synced throttlebody and still have the same issue. Dealer says all cylinders are good at 180 psi.
Motor runs well at throttle but rattles like a can at idle. I was thinking that the idle may need adjustment but then why are 4 out of six plugs good, makes no sense. Dealer checked coil/electrical and all passed.
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Thank you