Dear all,

I have an íssue with my cold start rpm.
It toggles and imdialty raises up to 1500 and drops down.
I have to press hard the breaks because it is picking up speed without control, I can only push break to slow it down.

Like a wild horse.

Can someone explain me how this cold start unit works?
I had changed the water temparture sensor. No improvement.

Thank you for the help.