Cold start high RPMs

Reply Subscribe

Thread Tools

Search this Thread

#21

12-22-2018, 08:27 AM

JigJag

Veteran Member

Join Date: Mar 2016

Location: North Carolina

Posts: 1,331

Likes: 295

Received 580 Likes on 361 Posts

Also temporarily seal the overrun valve intakes in the front of both air filter boxes to check that they are not the leaky bit.

Reply Like

The following users liked this post:

Greg in France (12-22-2018)

#22

11-04-2023, 02:14 PM

bavila

Junior Member

Join Date: Nov 2023

Location: O Porriño

Posts: 1

Likes: 0

Received 0 Likes on 0 Posts

PCV

Quote:

Originally Posted by leo_denmark

Throttle position Sensor. It's a potentiometer placed in the capstan tower sending a voltage signal to the ECU. 0,32V is idle, 5V'ish is fully open

I had a fair amount of air coming throug the crankcase vent valve connected on front of LH airbox. Blocking that lowered my RPM 150-200 (warm). I modified it by preloading the spring a bit more, that was the final thing that made my RPM settle correctly.

BR Leo

Hello Leo, I also have high revolutions when cold (1200) and when hot, close to 1000. I observed that the crankcase breather valve (PCV) allows air to pass at idle. It's right? If I lock it, it also drops to 750 rpm. How did you go about preloading the valve spring? Thank you so much!

Reply Like