Perform a compression test. Each cylinder should around 150 PSI +/- 10-15 PSI, and max difference between high and low should be no more than 15 PSI.
Get the engine warm and check the fuel pressure at the fuel rail/pressure regulator.
Check the output of the coil when the engine is hot, it should be bright blue.
Run a bottle of fuel system cleaner through the tank.
Friday, July 1st, 2011 AT 9:46 PM