[Tippy]

ANOTHER UPDATE:

I am getting closer but discovered I have 2 problems - both fuel and ignition. I finally got the engine to run smoother, rev easier, and build boost sooner. The 8-position switch on the back of the DME did the trick.

I put it on position #2 (2 clicks clockwise) which is 2.8% enrichment according to "ischmitz". Wow, what a difference! It was lean after all as I suspected......fuel side fixed.

But, the surging and cutting out is still there! It has the classic signs of a coil dying; runs good cold, acts up as it gets warmer, and then acts really erratic once it is hot.

Replaced the coil this evening and no change.......

Did a new search using "cutting out" and found some interesting ideas of what may cause a Carrera to exhibit these symptoms (I am shocked at how many cars have had this problem!!!!!):

- CHT (mine checks out good but who's to say it doesn't short-out intermittently? I disconnected it once while it was running and the engine immediately died out)
- DME relay (don't have one hand....I know.......a death sentence)
- Loose trans ground (easy check, just need to do it but I am pretty sure it is good)
- Failing ignition switch (this one has piqued my interest as it gives power directly to DME and fuel pumps)

Regarding the ignition switch; my tach drops but my fuel pressure seems to remain the same when I get a cut out of power. I am assuming the fuel damper keeps the pressure up during the drops in power?

What would cause my tach to drop when the engine cuts out???