> Don't want to be firing those injectors then.. > unless you want some jet propulsion as well ;-) Nevermind, duh. closed intake valve = no problem. Guess you could use the crank as a signal but um... you'd need 2.5 pins? So I suppose digital logic along with the hall sender would be necessary to say, use five pins with a divider circuit? -Marc- 87 4ktq 88 90q