Dumb question, but my car seems to be running too efficiently; I installed:
-Manzo headers
-Circuit Werks test pipes w/ clamp-on heat shielding
-Cargraphic exhaust(super sound version)
-RoW DME
-New upstream O2 sensors
-New MAF
on my 1999 986 2.5, yet I don't get any pops, bangs, or burbles on over run. What gives?
notes:
-I disconnected the battery to help the DME adjust to the new exhaust several hundred miles ago.
-I can smell gasoline-laden un-catalyzed exhaust.
-Cleaned the throttle body (btw do this if you have even a slightly rough idle)
-I'm using 93 pump gas in the north-east US.