do you also notice a jerk when your moving and let off the pedal, say 30 mph or so?

 

Yes I do. And then giving it throttle again is another jerk

 

mgo5, yours is tranny related if you notice it more in higher tunes, i noticed in my auto the shifting of the truck absolutly blows in high HP settings and thats due to the e40d tranny being a giant POS stock.............but if you get it built up its the best thing since toliet paper

 

well i was worried about that, and wasn't quite happy with my first diesel after i got it, so i actually went and traded it off the other day....i got a dodge with a 5 speed and a v10

 

no info on the TPS ?

 

I know some chips can make the TPS super touchy. But this sounds a little more involved than that.

 

Its been like that before the chip. I also notice a knock when I let off the trottle and sometimes other knocks while moving with no throttle

 

Check your engine mounts I have a manual and it does the same thing I have yet to replace mine but I've read up on it and that's what it is supposedly