I have an 88 951 that I finally got back together after doing a headgasket and some other items and it won't start! This thing ran before I did the headgasket. The fuel pump runs fine. There is apparently enough pressure because a quick test of the injectors into a container shows a good spray pattern when hooked to the fuel rail. The injectors are getting a signal to fire, the "noid" light flashes like it should when cranking. The one thing I have found is the spark is strange. With a spark tester connected inline with the dist. cap I will get two good sparks during cranking and then no more! Any ideas? Could it be the DME? I'm about ready to give up...