No ballast on an '88. Everything gets it's juice through the ASD relay,the computer grounds the neg. side of the coil when it receives a signal [change in resistance] from the hall effect. Check upstream and downstream of the ASD,see if there's 12v to/from the relay. Let me check my FSM. Think there's only supposed to be 5v to the hall effect best as I remember.
Last edited by lugnuts; 12-19-2008 at 08:01 PM.