cutting out problem

[madman23]

It happens very randomly. Most of the time its either around a hard right hand turn or just going straight and flooring it. Its just a quick harsh jerk and then it gets back on. Sometimes more than once but most of the time its just once and then it will come back on. My fuel pump is about 3 months old, all of the wires going to it seem fine. The thing is I had this problem when I had my old motor in as well as my newer motor now so I know the problem isnt there. Help please.

Thanks

[Kristeun]

Heh was about to make a new thread but this is exactly the same problem I'm having. Used to be very frequent when I was running a 173 DME with a MarkD chip. Then I swapped in the stock 153 and the problem went away for a few months but now it's back...

[morerevsm3]

I had a problem that I thought was rev limiter cutting in randomly and way early, ended up being blocked cat...

[SpecM]

vaccum leak maybe?