what Should The Timing Read On The Scanner For A1999 Silverado Pickup
The timing id controlled by the computer so the timing is not adjustable, if you turn the distributor you will be changing the Sync signal to the computer and will result in a check engine light, as you have already changed out the distributor you may have to take it to some one who can set the sync signal properly usually a Chevy dealer. As far as the scanner reading it could range anywhere from 10 to 32 degrees at idle in closed loop. Hope this helps.
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