Well my problem starts after I drive the car hard for awhile. The car seems to stall like it is not getting enough gas. When it occurs I'll step on the gas and it goes nowhere and the exhaust pops allot. If I turn the car off and turn it back on the car works fine. I thought it was the fuel pump so I bought Walbro 255 and installed it and I am having the same problem. I don't think it is the fuel filter b/c I replaced it 3 months ago. Any ideas?

 

bump

 

Timing, dirty fuel filter, dirty clogged injectors, bad grounds, bad plugs. Just a start.