4-5k RPM retardation

[BADCLOWN]

Ive noticed it the last month or so and it may have been present before for all I know but:

I dont WOT my vehicle much, but when I do, there is a retardation of acceleration from 4-5k RPMs. It does NOT feel like a misfire, just a slight retardation in acceleration. Any thoughts? Not feeling an shudders/shakes/anything remotely violent when it happens.

[johnrando]

The infamous 4k dip? If so, google it. Lots of discussion, including our forum. Too many hits to link to just one article/discussion.

[BADCLOWN]

i tried searching the tech forum here and got no hits. maybe I'm retarded.

someone close/delete this thread please.



looks like DISA replacement and clearing the adaptations on the DME. happy coincidence i bought the GAS stuff......guess i do possibly need it.

[johnrando]

Closed. No worries at all, that's what we're here for. Glad you're on your way to a fix.