mariovr6 0 Posted April 19, 2004 hi about a month ago my ecu last its memory n the car couldnt idle (as some already know!! cheers) got the car tuned by a muppet who told me engine was mash up?? turned out he left ht lead 5 off.... anyway i took all the spark plugs off n they all seemed matt black... so i cleaned them all while waiting for my new plugs to come.. just changed all the plugs today and PLUG 1,2,3,4,5 ALL are what i think in good condition dry light black/grey with a bit of rusty brown colour... but spark plug number 6 is dry matt black all over n smells strong of fuel whats this mean?? Quote Share this post Link to post Share on other sites