OK. Let's back up a little bit. When you say that it loses spark, what exactly do you mean? If you mean that the engine (while it is running) shuts down for no particular reason, then we are on the right track.
The only things that can shut down a running engine includes, but not limited to:
- fuel pump
- fuel pressure regulator (in your case, within the fuel pump assembly - which has been replaced)
- fuel filter (you didn't mentioned it, but should have been replaced when the fuel pump was replaced)
- crankshaft sensor
- camshaft sensor (in your case, inside the distributor - which has been replaced)
- ASD (Automatic Shut Down) relay. Sometimes, when the relay goes bad, it will turn itself off thus shutting down the PCM.
I would check the relay. It is inside the power distribution center, under the hood.
Wednesday, January 7th, 2009 AT 9:31 PM