yeah i suppose what i think may be going on is, if the engine is rich at idle the plugs may be fouling then eventually they just get to where the car stops running al together. Bets to set best l;elan idle, then if they plugs are fouling iit isnt because of the idle circuit, actually the idlke circuit is only in play at idle from what I understahd,but ive had engines foul out plugs idleing..it isnt fast but over time the car will miss and run bad and youll think bad ignition and it is, but its fouled plugs.
