First,thanks for your [...] for engine vacuum 19" at idle,on snap throttle vacuum drops to 9" then snaps back to 22" then settles at 19-20' the MAP voltage is 1.2v at idle pid shows 19.8".CTS and IAT appear [...] start CTS 140 IAT 99 deg. Batt temp.2.6v at 73d... Login to read more.