Mazda pr5 misfire

Bustypr5

Member
:
Mazda protege 5 2.0
Hey guys, I got this Mazda protege 5 and it has a really bad misfire... Anyone have any ideas what it is? Let me know.
 
have u done any work to it recently? check and make sure your spark plug wires are in the right order?
 
CEL on? If so, it may show 'random misfire' on OBDII reader I got this before I replaced a
coil pack. As has been noted, check plug wires and coils, plugs if needed.

If you let a misfire go too long, it'll take out the cat (s) with unburned fuel; I know from very
expensive experience. I knew it had to be a coil, but I stupidly let it go for a week, because
it would clear itself while running, then return.

Coils are around USD27/ea. at AutoZone. Just as good as OEM. Plug wires around USD50/set,
same source. dealer cost around USD320 for wires/coil packs.
 
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