2000 Protege #2 cylinder misfire

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2000 Protege #2 cylinder misfire

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Mazda >> Mazda Vehicles >> Mazda Protege >> 2000 Protege #2 cylinder misfire

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2000 Protege #2 cylinder misfire - 1/13/2007 8:58:51 PM

MrMan

Posts: 2
Joined: 1/13/2007
Status: offline

Hi all, new guy here. I'm working on my friend's 2000 Protege 1.6L with about 100k miles. The check engine light is on with a "#2 misfire" code. I cleared the code but it came back in a few days. According to my friend it runs fine and the car is otherwise in good shape.

I plan on replacing the spark plugs and wires first. How about the coils? Are there any known problems with the coils on this model? It looks like there are 2 coils on the top of the engine. I'm assuming if one of the coils was getting weak, it would cause a misfire in 2 cylinders. Is this true? I just want to be sure before I tell the owner to spend $$$ as they are on a tight budget.

Thanks!!!

Post #: 1

RE: 2000 Protege #2 cylinder misfire - 1/16/2007 3:52:06 PM

babyhuey

Posts: 2759
Joined: 7/28/2005
Status: offline

New plugs would be a great place to start off with. Use NGK plugs for best results. Protege with 1.6 calls for a ZFR5F-11 plug. Not likely to be a wire though as only #1 and #3 are supplied spark thru wires. Have not seen a lot of problems with coils but a few here and there. While replacing the plugs try swapping the coils. If missfire then moves to #4 cylinder with a P0304 stored then you will know the coil is at fault.

(in reply to MrMan)

Post #: 2

RE: 2000 Protege #2 cylinder misfire - 1/22/2007 10:10:26 PM

MrMan

Posts: 2
Joined: 1/13/2007
Status: offline

Thanks for the info Huey I really appreciate it. Turns out the plugs were shot (the electrode was almost gone) and the spark gap was huge. Replaced the plugs and swapped the 2 coils just to be sure. The car is running great so far.

Thanks again!!

(in reply to babyhuey)

Post #: 3

RE: 2000 Protege #2 cylinder misfire - 1/24/2007 4:08:28 AM

babyhuey

Posts: 2759
Joined: 7/28/2005
Status: offline

Glad to hear it was just some worn out spark plugs MrMan without having to replace some more expensive coils/wires.