|
That idle dip could be one of dozens of issues
If its on stock tune its unlikely to be tune the 2017 should ide fine it was onlt early cars like 2012-2013 then 2015 auto that had idle issues but if its a used car you dont know if its stock tune
Check manifold pressure at idle is abour 0.4 bar (atmospheic is 1 bar)
Check long term fuel trims at idle is less than 10% when warm
Check AFR is steady at arround 14.7 AFR at idle
If those are not correct might give you a clue as to where to look
check intake and exhaust systems for leaks, clean maf sensor, clean air filter
Unfortunately intermittent faults like this are hard to diagnose is a fully equipped workshop and virtually impossible on the internet.
Many cars are modified then put back to stock, but tune left in car for mods
|