What causes negative idle timing? I have adjusted the timing at idle, I have checked my fuel trims, I have ran a maf only tune, checked my maf, changed spark plugs done everything I can think of.
Whenever the car is at idle, timing is roughly -5 degrees. She idles fine, drives great, no issues at all but for someone reason the idle timing is negative.
This is on a 2006 lsj TVS 80lber car. Any ideas guys?