Misfire 1 & 3

[1-3-2-4]

I need to get this stuff done soon..

I already have the CEL on for the 2nd 02 sensor which I hear is not really adjusting anything on the car..

however I've been getting the misfire for 1& 3 and sometimes it will blink when just idling.. I have no power loss, i've noticed the idle of the car has been more up and down, then it will idle fine without going up and down in the idle again.

I know from my records I'm 11,467 overdue for spark plugs They are normal copper plugs and not that platinum I will put in, but 1 & 3 on the same bank can't just happen over plugs right?

I notice I have a exhaust leak right at the front cat and the header I need to replace the headers anyways.. That might explain the idle and why it's like that.

[chuckthefuk]

holy problems that are not taken care of ..
could be coil pack, plugs, wires, timing is off, injectors..
http://www.sl-i.net/FORUM/viewtopic.php ... &view=next (http://www.sl-i.net/FORUM/viewtopic.php?f=11&t=22078&view=next)
Exhaust manifold cracks wont cause a miss fire.

[Dead91silvia]

Get the right plugs in that poor thing. You only do it every 60K anyway.

I had a miss fire code and it was fixed with a new coil pack. But it could be like Chuk said. Plugs, wires, coil, or any number of things.

1st I would get some plugs. Yes, they will be $50-60 bucks. Next I would say wires if they are original.

[chrish8r]

Make sure your cat has not broke apart(like mine did) and is blocking your exhaust. That caused a misfire on 1 and 3 on my car.