Matej
02-28-2011, 04:52 PM
Hello,
A few days ago I started up my car, but it idles higher than desired.
The motor has not been started in two years. During that time the timing/distributor and the idle air screw were not touched. However, I did remove all emissions and unnecessary vacuum lines, swapped the upper intake manifold portion for an S14 one, and overall stripped the manifold to only the necessities.
The idle is steady, actually it is more solid than it has ever been. It just idles too high. I assume a vacuum leak/open vacuum would cause the idle to be rough, so I am ruling that out. Or is that not necessarily true?
After searching the internet, I learned an air regulator that is stuck open will cause a high idle, and a faulty Throttle Position Sensor could be the culprit as well. Are there any easy ways to check either of those? What else could be the cause?
Thank you for any help.
A few days ago I started up my car, but it idles higher than desired.
The motor has not been started in two years. During that time the timing/distributor and the idle air screw were not touched. However, I did remove all emissions and unnecessary vacuum lines, swapped the upper intake manifold portion for an S14 one, and overall stripped the manifold to only the necessities.
The idle is steady, actually it is more solid than it has ever been. It just idles too high. I assume a vacuum leak/open vacuum would cause the idle to be rough, so I am ruling that out. Or is that not necessarily true?
After searching the internet, I learned an air regulator that is stuck open will cause a high idle, and a faulty Throttle Position Sensor could be the culprit as well. Are there any easy ways to check either of those? What else could be the cause?
Thank you for any help.