Check the spark plugs, wires and ignition coils for a start.
Are you able to keep the engine running if you feather the throttle ?

Answered by KHLow2008 (expert)
39,806 answers provided

It does keep running with the throttle feathered, however it is not steady and does stumble.

Response from ryanokeefe
1 question asked

The idling speed is too low and I would suggest cleaning the throttle body and checking for vacuum leaks.

Answered by KHLow2008 (expert)
39,806 answers provided

I found a broken vacuum line coming from the heated air and purge canister nipple. I am going to get a vacuum splice to fix the line. Would that fix this issue?

Response from ryanokeefe
1 question asked

If it is a constant vacum line, it most probably would fix the problem. You need to get it fixed to know it that is the cause. You can try plugging the vacuum source to test.

Answered by KHLow2008 (expert)
39,806 answers provided

I have ran down all the vacuum lines. Made the repair I mentioned earlier and no improvement.

Response from ryanokeefe
1 question asked

Also, when I open the throttle, a white vapor comes out. Is that normal? The car develops a strong gas smell when repeatedly started and kept running by giving it gas.

Response from ryanokeefe
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If anything is coming out of the throttle, it could mean the ignition timing is too advanced.

Symptoms indicates the engine is running rich and if you have not checked the spark plugs and related components, go through them.

Answered by KHLow2008 (expert)
39,806 answers provided

I have checked those. I am going to check the timing belt next to see if it is okay.

Response from ryanokeefe
1 question asked