Intermittent P0300

:
2002 Madza Protege LS
I've read through most of the posts about people getting the P0300 code thrown and everyone seems to have it coincide with a significant, sustained loss of power.

In my case, it only happens intermittently and when it does, I only lose power for a fraction of a second - it feels like I suddenly let off the pedal but then the power comes right back.

I am slowly (least $$$ to most $$$) working through the causes that YenkoZL1 posted here (http://www.mazdas247.com/forum/show...ire-symptoms&p=5596648&highlight=#post5596648). Has anyone else seen these intermittent symptoms or have any ideas?

Thanks.

Rick
 
coils plugs wires
Quite possible. Also could be malfunctioning EGR valve. When does this loss of power usually happen? Cruise speeds? When car is warming up? When it's hot/cold out?
 
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