No. If the pump is going bad, it won't get enough fuel. Check the fuel pressure at the regulator. Pull the plugs and check their condition. Do they look wet with fuel? Check the quality of the spark being supplied to the plugs. They make a nice little "toy" that takes the place of the plug and clamps to a good ground so you can see the spark. It should be bright blue and audible.
When the timing belt was replaced, did whoever replaced it check the compression? Either way, do so again. You should see numbers of at least 120-140PSI, with no more than 15% variance from highest to lowest.
Tuesday, December 13th, 2011 AT 4:38 AM