Question about 2001 Honda Civic

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Codes p0300 p0304 p030 - 2001 Honda Civic

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

Molson02536
  • 3854 Answers

SOURCE: What is the meaning of 98 Honda Civic error codes

P0300 indicates that there is multiple miss fire in the ignition system. P0303 and p0304 indicates the miss fire is in cylinder #3 and #4. Replace the spark plug, and wire set, and rotor and cap if there is one. Can not remember if there are coil packs on the civic, the age thing. change the fuel filter and clean out the fuel injectors with fuel injector cleaner for the next 3 full ups. When the spark plugs are removed, inspect them for condition, if there clean or dirty with carbon build up. which would indicate how the engine is running. Keep me posted and drive safe.

Posted on Jun 04, 2009

  • 731 Answers

SOURCE: P0302,P0303,P0304;P0300 and P1399 found by the

From www.hondasuv.com:

 

The P1399 random misfire along with one or more of these codes: P0301, P0302, P0303, P0304 -- indicates a problem with the valves. The B20 engines in the 1997-2001 CR-Vs are known to have problems with valves tightening and then 'burning'.

So the first question is when was the last time you adjusted the valves? If you don't know or never have, then have them adjusted. Soon...

Posted on Jan 04, 2011

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How do you tell if the coil packs are bad


With an OHM meter to check the resistance

Contributing Member
mtl_4runner-2548.gif?dateline=1060047767
Join Date: Jul 2003 Location: Montreal, QC Canada Posts: 8,805 im_aim.gif So you got codes P0300, P0304 and P0305

You need to check primary and secondary resistences, not just primary as you did.
Primary = 0.67 - 1.05 ohms (You may have a bad multi meter if all read the same)
Secondary = 9.3k - 16k ohms Contributing Member
mtl_4runner-2548.gif?dateline=1060047767
Join Date: Jul 2003 Location: Montreal, QC Canada Posts: 8,805 im_aim.gif So you got codes P0300, P0304 and P0305

You need to check primary and secondary resistences, not just primary as you did.
Primary = 0.67 - 1.05 ohms (You may have a bad multi meter if all read the same)
Secondary = 9.3k - 16k ohmsSo you got codes P0300, P0304 and P0305

You need to check primary and secondary resistences, not just primary as you did.
Primary = 0.67 - 1.05 ohms
Secondary = 9.3k - 16k ohms

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I am workiing on a 1999 toyota carolla has a misfire


Here is a good site for OBD II trouble codes.  P0300: Random/Multiple Cylinder Misfires Detected, P0301: Cylinder 1 Misfire Detected, P0304: Cylinder 4 Misfire Detected.

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