[raccaro]

Here's the quiz. How could my 74' 2.0 be running perfectly one second and then have me stopped on the highway with a dead engine? Here's a brief history. The car had a consistent misfire with occassional good running in between. It also got to a point where it wouldn't rev above 3200rpm. Pretty frustrating trying to accelerate safely onto the highway. After checking my fuel supply system and resetting the fuel pressure(all to spec) I dove into the ignition system. I removed the distributor, changed and set the points, changed and checked the trigger points with an ohm meter, reinstalled and set the timing to specs. The car finally ran like I remembered with out a hint of a misfire and revving as high as I wanted. As I headed home from work a couple hours later I noticed some slight misfires or shudders but it kept running. I accelerated onto the highway and it pulled cleanly to 100mph and then as quickly went dead. After coasting off the highway I checked the wiring and everything looked good. It started and misfired for a few minutes and then started running like nothing ever happened. A few miles later I can barely keep it running. I rev the engine a few times, it comes up to speed and then drives perfectly the rest of the way home. I guess the trick question is what component or system can operate perfectly one second and lousy the next without simply failing altogether? Any ideas would help as I running out of ideas. Thanks