holding back 350

[mhardy]

Guys, my 350i '90 starts good and idle when cold is ok.
when i drive with a continue rpm (2000rpm-3000rpm)it's holding back a bit and when accelerate it's perfect. When car is "hot" the holding back is slightly going away.But than idle is a litle fluctuating up and down.

Plus(ngk) and leads(magnecor)are new.

Idea's ..............???

Thanks
Matthijs (Netherlands)

[montegogt]

Sounds like a typical Wedge to me....

[mild2wild]

Hi
Sounds like the throttle pot, the track in it will wear in the most used section ie 2000 to 3000 rpm, you can check it on a volt meter, if it does not read steadie at a held posistion where your doing 2000/3000 rpm that will be the problem, in my opinion.

[danny hoffman]

Try unplugging the throttle pot and see how it runs then.

[mhardy]

danny, can you explane how to unplug??

and could it be a temp.sensor???

thanks,
Matthijs

[danny hoffman]

I meant unplug the electrical lead and see how it runs