I just got through putting in a new engine w/ a cobra intake ported stock heads and an e303 cam and I've been having problems with an occasional surging idle. Sometimes it happens when the car is cold sometimes it happens when the car is warm. And sometimes it seems to run fine.
So I've read through the surging idle checklist a few times and tried adjusting my idle speed w/ spout and IAC unplugged. But I'm having problems getting the idle speed down to 600 rpms (judging from the stock tack which may or may not be accurate). When I get down below 700 rpms the idle starts surging and the car eventually dies.
I've searched for vacuum leaks and I don't find any, though I'm not positive on the gaskets. I did check the intake manifold gaskets by spraying carb cleaner (yes I know it's dangerous) around it and didn't hear any change in idle speed. I'm not sure how much vacuum I should have (someone have a number for me?), but I have a gauge and could check it. I should have already checked it, but now I'm sitting at the computer and I don't want to go back out right now.
Is the e303 cam radical enough to cause idle problems and difficulty adjusting the idle speed? I thought it was supposed to maintain a near stock idle quality?
So I've read through the surging idle checklist a few times and tried adjusting my idle speed w/ spout and IAC unplugged. But I'm having problems getting the idle speed down to 600 rpms (judging from the stock tack which may or may not be accurate). When I get down below 700 rpms the idle starts surging and the car eventually dies.
I've searched for vacuum leaks and I don't find any, though I'm not positive on the gaskets. I did check the intake manifold gaskets by spraying carb cleaner (yes I know it's dangerous) around it and didn't hear any change in idle speed. I'm not sure how much vacuum I should have (someone have a number for me?), but I have a gauge and could check it. I should have already checked it, but now I'm sitting at the computer and I don't want to go back out right now.
Is the e303 cam radical enough to cause idle problems and difficulty adjusting the idle speed? I thought it was supposed to maintain a near stock idle quality?