Originally Posted by
morecircles
I spoke with my tuner about this. He turned off LTFT while MAF calibrating, so unplugging the purge should be irrelevant.
The car was boost leak tested downstream of the turbo outlet with 0 leaks. He recommended doing a smoke test at the filter inlet, but the symptoms do not point to a boost leak.
During throttle liftoff, the exhaust pops quite audibly. Especially coming off of a WOT pull. This was not the case with my previous trifecta tune.
Thanks. Any further thoughts welcome.