Could be bad coil pack maybe? Pull the cover over the coils and see if you see a light show happening! I know from other 24V owners that the coil packs can cause all kinds of weird things to happen. Hope that helps you out,
Jon
Jon
Yes, they are not super cheap but I would not say for sure it is the problem until you diagnose them. They could have fine cracks in them causing arching. The rubber boot sometimes can get cracked, etc...Maybe put some kind of insulation between the coil pack and the valve cover. Maybe get a sheet of rubber and cut some kind of base that would go underneath the coil packs. I know junglejustice tried I think Mylar, but still had problems. Interestingly while chatting with a 164Q owner at the alfa meetup on saturday he said that he replaced all of his coil packs because his car was running poorly. Took him a while to figure out why, but now he sais that the car runs better then ever. Problem is I think those suckers are not cheap, but look at it this way, even if it does not solve the problem, you have new coil packs! For a source I know that Alfissimo sais he has some new ones at a fair price, give him a call if the insulation try does not work. Best of luck,
Jon
Helps somewhat if you start engine and pull fuel pump relay near coil (one without red stripe to kill engine and fuel pressure before you remove fuel filter.Fuel filter is slightly messy, but not too bad, I had a bear of a time with mine, though having the proper size spanner for the filter would have made it a snap. Instead I had to use my king size crescent wrench, not fun.
Where abouts do the cracks occur? Will try and take a look at mine. Thanks.Maybe putting some epoxy on the cracks can help? This is one instance where I am glad I do not own a 24V car. Then again, when I got my foot down in my L I wish I had the extra power, all in all its a trade off.