Hi beugramble, Welcome to 2carpros and Ty for the donation
Next time it refuses to start don't wait immediately do below to determine if its fuel or spark related issue-Do below and report back with some testing results.
Camshaft positioning sensor to include the knock sensor?
Get a helper disconnect a sparkplug wire or 2 and ground it to the engine atleast 3/16 away from ground-have helper crank engine over-do you have a snapping blue spark? If so-you have a fuel related problem, check the fuel pressure to rule out the fuel filter/fuel pump/pressure regulator and listen to the injector/s are they pulsing or hook up a noid light. No snapping blue spark continue to troubleshoot the ignition system-power input to the coil/coil packs, coil's resistances, distributor pick-up coil, ignition control module, cam and crank sensors and computer Note: If it doesn't apply disregard it
Friday, January 15th, 2010 AT 11:42 PM