As some my know I am trying to track down a light missifre at approx 2,000rpm.
I have just read about the PCV being a common failure and that a sympton is breather air being sucked into the intake in during vacum, which is where it would be during light throttle/2,000rpm
A test for this seems to be attempting to remove the oil filler cap to see if it runs rough or has suction.
When I initially viewed the car I took the oil filler cap off to check for contaminants/head gasket failure while it was running and the car imediately stalled.
Would this indicate a PCV issue ?