Hesitation bug, and bad idle

[Mustang Billy]

Originally Posted by Jeff Chambers

Two things usually lead to a surging idle, (1) lean condition and/or (2) too much timing. C&L meters are notorious for creating lean conditions at the low end of the transfer function. By any chance do you have an open breather on the car?

Exactly what jeff said....

Also check you TP Sensor and see what you voltage is and if it is reading right...If it is working right ,get an "VOLTAGE" meter and set it too .98-.99 for best throttle response...

Check at night after it has bee driven and in the dark and see if you have any spark plug boots arcing on something or down in the holes and arcing too the block...I have had them do that before also when at a higher gear and under a low rpm trying too cruise,it would do that and drive me nuts...Just another opinion...

[1989GT]

get an ohm meter and set it too .98-.99 for best throttle response...

Actually that'd be Voltmeter, but I'm sure that's what you meant.

[Mustang Billy]

Originally Posted by 1989GT

Actually that'd be Voltmeter, but I'm sure that's what you meant.

lol....Yeah, My mind and fingers aren't on the same pace...I do that often...

FIXED....