A bad O2 sensor would not cause this issue.

The cruise might be dropping out due to idle speed control issues. This car should have a throttle control computer correct? I'd start there.

I started working on my ETA throttle so I started taking things apart.
I found that the throttle return spring was broken and I also found a disconnect vacuum line near the back of the intake manifold.


However, I can't see to find the darn plastic vacuum line that is supposed to be connected via a rubber vacuum hose.


The small black rubber hose was gummy and broke apart in my hands.
There are supposed to be two vacuum lines connect beneath the back of the intake manifold. The one that is still there has a clearish plastic vacuum line and the other is missing.


Does any one know if the on of the vacuum nipples is just supposed to be capped off with a rubber boot? Does any one have a vacuum diagram of the area in question?


Thanks.