Hi

I'm looking for some advise on a annoying problem with my car

When I accellerate gently, or driving at constant speed, I get this annoying feeling that the car is having a wire attached to the rear, which is being pulled every one second. It is most obvious in 1st 2nd 3rd gear when the revs is arround 2-3000 rpm.
The "rytm" of the pulling feeling, is very constant

When driving at motorway speeds there seems to be no problem, but maybe this is because the problem is masked by the inertia of driving at higher speeds...?
When accelerating harder (2/3rd or flatout) there seems to be no problem at all

car is running MSD closed loop, and coil pack

any suggestion would be highly appriciated

Christian

 

It could be the the rear calipers are sticking after releasing the handbrake. After driving it on the motorway does it then start dragging again?

 

Thanks a lot for suggestion, but deffinately not (they would have to be warped quite a bit i guess) and there is nothing when depressing the clutch and the car is just idling but still up to speed..

the pulling feelling is kind of the same rytm all the time, in different gears (lower gears)
you could also say it feels like lifting throtle a little bit, and pressing it again, and keep doing it in 1 second rytms.

i seems to me that it must be electrically, as the "rytm" is constant
but I could be wrong

 

Its a lean or rich transition loop in your closed loop fuelling system, try adjusting the CO screw 90 degrees clockwise and see if it stops. If not, go 180 degrees counter clockwise from that point and test again.

 

Thanks a lot Stu - will try that

(btw I will place order on monday for the stuff we discussed on email)