Quote:
Originally Posted by fuffl
Did you have to do anything else to tune out the problems with low vaccum? I'm having the same problem with my new cam, the MAP is reading 100 at idle. Currently it actually seems to be misfiring, but I'd be greatly encouraged if I could just adjust the misfire tables. Any help would be greatly appreciated. So far I've checked:
-Pushrod length
-Cam degree and install
-Rocker tightness
-coil packs being on the wrong side
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I don't think your map should be reading 100 at idle, that is atmospheric pressure, even with a huge cam there should be some vacuum. If I remember correctly my map is 60 at idle, I think it was 30 stock. You need to check out that map sensor, maybe it needs to be reset or somthing. Does the reading ever change or is it stuck on 100?
After you figure the map situation out you will most likely have to adjust the misfire tables. I would only adjust the idle portion of the tables and I would just keep making it less sensitive little by little until you don't throw the code. This way you will still have real misfire detection.