carb issues...

[LeviGideon]

I finally got my engine idling properly the other day after replacing a few cracked vacuum lines and the fuel filter, but I have found that in the mornings when I start the car it revs dangerously high while in neutral and I'll have to put it in gear before it revs. This only happens when the engine is cold though.

Also, when I hit the gas after stopping the car stutters like it's either not getting enough gas or getting too much gas. If I accelerate very gradually it's fine, but if I hit it too fast it will stutter.

This is a stock carb on an A15.

[hobbes_the_cat]

sounds like something is wrong with the choke. see if it is loose or stuck.

[datzenmike]

This could be normal. When the choke is on, a fast idle cam is also in use to rev the motor and warm it faster. Usually 1,500 to 2,200 RPMs is normal. Without a tach it's hard to say what you think is 'dangerously high'. Within 30 seconds you should be able to lightly tap the gas to release the fast idle down a notch. You should do this if an automatic anyway to prevent shocking the drive train.

[LeviGideon]

By dangerously high I mean it's the equivalent of flooring it in neutral. I'm afraid it will damage the engine if I let it keep going.

[LeviGideon]

So the choke isn't stuck, and it doesn't seem necessarily loose. I am able to move it by hand though. I adjusted the idle and mixture screws and now it doesn't cut out when I hit the gas too quickly. I'll have to wait until tomorrow morning to find out if they were related issues though.

[TENDRIL]

this dose sound like a warm-up issue

 

let us know 2maro.. GL

[LeviGideon]

Went out and started it a little while ago just to see what it would do. It immediately started reving again. Could it be a sensor somewhere?