working intermittently...It's probably just coincidence..or your pulling is causing an intermittent connection on an adjacent connection...Sounds like the AIV's in the fender..it's basically an air pump...to i9nject air in the exhaust...it's right below the fuel filter..under the fender splash shield.
So I'm having this dream! I'm in my Z and these guys are after me, but they can't catch me...So they get a car, but they still can't catch me. So they get a plane, and just as their about to catch me....the TWIN TURBOS KICK IN!