2004 Mitsubishi Endeavor xls

What is your question?

timing belt got replaced. you have to press the gas pedal to get it started, then car will not stay at idle it dies out. Do you think if its couple of tooth off, it will cause this, also oil got into the spark plug on the front side. I did not check the back side.

What makes this problem better or worse?

stay the same cold or hot

How long has your 2004 Mitsubishi Endeavor had this problem?

got the car from a friend and its been sitting for a while.