car dies when oil cap took off

[capwred]

ok i got ka24de. When the cars running and i take the oil cap off it dies. So if anyone can help with this it would be great.

I just got the car 2 days ago and it drives fine. has new plugs,wires,cap.

[Madmax3]

Why would you take the oil cap off while the engine is running?

[S13FASTBACKSR]

just dont take the oil cap off and your engine wont shut off..simple as that..theres no reason why you should take the cap off when the engine is running anyways

[0wn3r]

ok i got ka24de. When the cars running and i take the oil cap off it dies. So if anyone can help with this it would be great.

I just got the car 2 days ago and it drives fine. has new plugs,wires,cap.

yea what the heck? what is your purpose for taking off the oil cap while the car is running?

and it's, "I have a ka24de."

[nuts510]

your car runs a closed crankcase ventilation system, when you take the oil Off you are in effect creating a huge vacuum that's why it quits it's also normal

[guyaverage]

When you take the oil cap off, you arent creating a vacuum, you are destroying one. (You wouldnt create a vacuum in the crankcase by opening up a gaping 2 inch hole in the valve cover!) Anyway the crankcase is at a very slight relative VACUUM compared to ambient, when you take off the oil cap you are increasing pressure in the crank to equal ambient pressure, allowing unmetered air into the intake via the pvc valve, which causes an over-lean condition which is the cause of the stall.

Q. "Doc, my arm hurts when I go like this. What should I do?"

A. "Dont go like that."

= solves the problem. Leave the oil cap on. No reason to run the engine without it other than to watch the camshaft spin.