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Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Misfire Code for Cyl's 1 and 4...but car funs perfect?

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Old 12-17-2004, 01:14 PM
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Default Misfire Code for Cyl's 1 and 4...but car runs perfect?

Referring to this thread

https://honda-tech.com/zerothread?id=1088038

Went to Autozone, got the codes read. P301, P304, and P300.

Cylinder 1 misfire, Cylinder 4 misfire, random/cylinder misfire. HOWEVER, the car runs perfect. Like I stated in the earlier thread, CEL comes on when it's being started and it's cold outside. Plugs are new, wires are relatively new, and I will check the distributor cap.

What's causing this code, yet no loss in performance or a misfire? The car runs like a champ.


Modified by ****** at 4:34 PM 12/17/2004
Old 12-17-2004, 01:38 PM
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Default Re: Misfire Code for Cyl's 1 and 4...but car funs perfect? (******)

Have you done a compression test? When you change the dist. cap might as well change the rotor, and fuel filter.

Also have your injectors tested, they may be clogged/dirty.
Old 12-19-2004, 05:22 PM
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Default Re: Misfire Code for Cyl's 1 and 4...but car funs perfect? (SpdFrk)

Compression's good, fuel filter is less than 10,000 miles old, spark plugs brand new, injectors are good, I checked the distributor cap. I haven't changed the dist. yet, but it's a little dirty inside, not too bad.

Is there some connection between the engine being cold since the weather's so cold, and the dist misfiring? Maybe just because it's getting old? I plan on changing the dist cap and rotor when I have the $$, just wondering in the meantime. The car runs fine before and after the CEL comes on. Like I said, it comes on within 10 secs. of the car being started. TIA.
Old 12-19-2004, 07:00 PM
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Cap + rotor I picked up for $18 shipped from the performance forum, FYI.
Old 12-20-2004, 04:45 AM
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Default Re: (jlacoy82)

I know it's cheap, it's only about $27 before S&H from Majestic Honda...however I have $1.75 until Thursday...so I'm a little short.
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