Hello.
I am working on a 2020 Jaguar E-Pace. It is having an issue staying running. if left at idle in park the vehicle with hunt and surge and potentially will stall and shut off completely. No issues under load and no check engine light. When vehicle first arrived and codes pulled are the following:
P2169-13; Exhaust Pressure Regulator vent solenoid control - circuit open
P2600-13; Coolant pump A control circuit / open
P219F-84; Cylinder 4- Air fuel ratio imbalance
P26CB-72; Variable coolant water pump performance / Stuck off
I have replaced the mass air flow sensor due to when unplugged the vehicle ran smooth. Spark plugs do not look fouled or soaked. Took a bore scope and looked down the cylinder and there is not a lot of wetness from oil or fuel and fuel pressure in the rail is reading about 2800 in/Hg.
Any advice would be greatly appreciated.

 

Also to add the symptoms only happen when the vehicle is in park or neutral. Will not happen in drive or reverse

 

Didn't see this when you posted, is there a vacuum leak at the PCV cover vent on top of the breather? I have seen them do something similar with no faults to explain it.