Nissan11
Well-Known Member
- Joined
- Nov 29, 2005
- Location
- Marston, NC
Iim trying to diagnose a running hot issue in my Nissan frontier crew cab.
I hooked a vacuum gauge up to a port on the back of the intake near the firewall. It was my understanding that a healthy motor will idle between 17-22" and when the throttle is blipped, will drop to 3-0, then return back to its original position.
My truck shows 17 at idle, but when I blip the throttle it only drops to 15-16, then returns back to 17.
Here is a pic at idle.
Port
Idle
What does this mean? Am I hooked to the wrong port?
I hooked a vacuum gauge up to a port on the back of the intake near the firewall. It was my understanding that a healthy motor will idle between 17-22" and when the throttle is blipped, will drop to 3-0, then return back to its original position.
My truck shows 17 at idle, but when I blip the throttle it only drops to 15-16, then returns back to 17.
Here is a pic at idle.
Port
Idle
What does this mean? Am I hooked to the wrong port?