Hey guys, another problem. I noticed that when I'm sitting at idle, whether the car is in nuetral or clutched, I can feel the engine sort of pulsate. Like the vibration goes back and forth between smooth and rough every few seconds. I noticed that when the A/C is turned on, it stops, guessing because of the slightly higher rpm's. Wondering if anyone knows why it would do this at lower rpms and how I can fix this, since it's pretty muchg driving me uber-crazy, thanks.

 

same things happening to me too....and answer to this would be great.

it kinda goes from 600-900 rpm...just on its own, in neutral, without me touching anytinhg.....im considering the fuelk pump upgrade with fpr

 

One thing I did to stop this (before I upgraded the fuel pump and fpr) was to turn the idle up to about 1200. This way even when it drops slightly the car does not shake and it is usually hard to tell it even happened. Hope this helps!