I have set the timing at 5 degrees with the wire on the fire wall grounded. when you take the ground off it goes to around 15 degrees. and thats what the manual says to do. is there something im missing? they all rev to 1500 to warm up? seems tough on a cold motor. are you speeking of the idle on top of the tb on the back side next to the vacuum line that goes to the purge valve?

many thanks
loren

92 montero rs 3.0 locked rear