vented opti question/rough idle
06-15-2009, 10:39 PM
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vented opti question/rough idle ever since installing my vented opti...i have left the vacuum line unhooked. being that the vacuum port that the opti usually plugs into was being used on my EGR solenoid. recently i replaced my intake gasket seal and since i put on headers, i havnt had the EGR hooked up...i capped off the egr solenoids, egr valve, and the port on the manifold that used to go to the egr solenoid...i got my opti a little wet when i did the intake swap but being that it is vented and the fact that it was 104 degrees that day..i didnt think it would be a problem...now the car idles rough but smoothes out after 1000 or so rpm
i have two questions.....a) should the opti vacuum line be plugged into the vacuum port on the manifold that the EGR solenoid was originally hooked to (middle of driver side of intake)?...what does this vacuum do for the opti?
second question is....what could be causing this rough idel? it acts like a vacuum leak, but i cant find anywhere unless i have a manifold bolt causing a leak...
i have two questions.....a) should the opti vacuum line be plugged into the vacuum port on the manifold that the EGR solenoid was originally hooked to (middle of driver side of intake)?...what does this vacuum do for the opti?
second question is....what could be causing this rough idel? it acts like a vacuum leak, but i cant find anywhere unless i have a manifold bolt causing a leak...
06-15-2009, 10:42 PM
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Take starting fluid and lightly spray it around the intake and see if it idles up then you'll know if you have a leak the vacuum line to the opti is to keep moisture out of It
06-15-2009, 10:58 PM
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i also thought about dumping some seafoam in the tank ...just for good measure on the injectors
06-16-2009, 07:41 AM
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The opti vacuum line needs to be hooked up to the intake elbow.
I would check and see if your EGR valve is working correctly .
Push in the diaphragm and hold your finger over the nipple were the vacuum line goes. if it release and takes in air while you have your finger on the nipple it bad.
I would check and see if your EGR valve is working correctly .
Push in the diaphragm and hold your finger over the nipple were the vacuum line goes. if it release and takes in air while you have your finger on the nipple it bad.
