Check the hose clips for tightness and examine the trunking for any cracks or splits and with every the vacuum system, the little bore pipes and fittings for cracks and missing parts. The best showing off to find a leak is to have the engine doling out and warm and then spray can lighter gas /propane or brake cleaner in the region of each joint in turn. If the engine rev s stirring you ve found your leak.
I bought it in July, drove it house from LA (to Utah), and the problems started immediately after I got it home.Any new back up you can find the money for is appreciated. I don't know what else to get but recognize it assist to the dealer. I know I've got the shop foreman practicing upon it at the dealer, but I nevertheless tone its pushed to the support as its out of date and everyone loses in this situation.
have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you happening to date on all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms going on and is warmed up? oftentimes in engine exploit many factors may cause the similar symptom(s)