p02279

[t595]

hi first post hope this is in the right place :-
2012 relay van , randomly goes into limp mode ,it might not do it for months ,might do it a few times per day.
p02279 error code intake air leak ........ me thinks its actually an electrical problem .
if it was a air leak it would do it every run ?
ive removed the turbo pipes from the van , blanked the pipes , pressure tested them , no leak
any one got a clue about this ???
thanks

[t595]

update got diagbox up and running ..............run the air loop test , every component in the test field failed !!!!!
egr valve , throttle body , etc to me this proves that the ecu is communicating with every thing ?? [ie no broken wires that these vans are known for ] ??

any thoughts cheers