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Have a 2002 Civic EX with a couple of issues that I wanted to see if anyone could make some suggestions on. I changed out the spark plugs about a week ago only to findout today that autozone sold me the wrong plugs and the computer pulled up that all cylinders were misfired. Went to the dealership and changed out to OEM plugs. Still running a little rough 100K miles any suggestions? I also have had problems with at little jerky in the driving ever since I used some bad gas about 6 months ago, have used all kinds of fuel cleaners with no luck even the FP-60 any suggestions here?

 
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You never stated any problems!

Sooo you had a CEL (check engine light) on, and took it to honda. They tured that off for you, but now it STILL runs rough????

On top of that you put bad gas in your car like six mounths ago!Soooo ... you put "Diesel" fuel in your car... im confused

You never stated a problem in this thread... Elaborate your PROBLEM for me...

-when does it run rough... idle, driving, when

 
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I am having a similar issue. I have an 01 EX Coupe 120k Mi. It sputters (misfires) at a low RPM under a load (like going up a hill at 2,000 RPM or less in 2nd or 3rd). It drives fine otherwise. Any Ideas, the only one I have is new coils but they are almost $200.00 for all four. Fuel filter is unchangeable on this car. Any Ideas or experiences with this?

 
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Ya, Im no guru when it comes to diagnosing problems... but at over 100,000 miles change plugs, coil pack (mabe, have honda check), then injectors.

In that order. Other then that, without being there

good luck

PS: Have both you done regular maintaince with your cars... 30,000 check up, 60,000 check up, & the 100-120,000 miles check up????

 
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Might need a new O2 sensor, I think I do. Lighht goes on and off sometimes.