Question about 2002 Honda Accord

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My 2002 honda accord check engine light has been on for the past month. i took m y car to get the engine codes read and it said cyl 2 and 4 misfired. the car drives good but starts losing power when i go up a steep mountain. i put a new distributor cap, rotor button, and ignition coil on but it still idles funny. it reminds of how my grandfather's old john deere tractor idles

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  • philschneide
    philschneide May 11, 2010

    When was the last time you changed your spark plugs??

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You did part of the tune up what about spark plug wires and spark plugs? change these also

Posted on Nov 17, 2009

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Did anyone check the spark plugs and wires? Make sure the Spark plugs are the correct NGK Spark plugs, nothing else. Fuel pressure is another thing that need to be verified under a load, lke the mountain you are having trouble with.

Posted on Nov 12, 2009

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Nov 28, 2015 | Cars & Trucks

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Cylinder #1 continues to Misfire


What DTC code(s) are you getting?
You performed a compression test on cylinder #1; did you test cylinder #2?
Compare the readings, if there is a significant difference in compression readings between the two, you may have a bad head gasket, a bad valve, etc.
The bottom line, the problem is internal to the engine.

Dec 09, 2013 | 2002 Buick LeSabre

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Is there an erg valve on a honda accord 2008 4 cyl


code p0300 refers to--random/multiple cylinder/s misfire detected...Causes---spark plugs---HT leads---injectors---ignition coils ---low compression ---wiring
code p0302 refers to cylinder 2 misfire detected Causes ---engine mechanical fault---wiring---ignition/fuel system ---ECT/MAF sensors ECM
code po303 refers to cylinder 3 misfire detected Causes Engine mechanical fault---wiring---ignition/ fuel system ---injector---ECT/MAF sensor ECM The common fault to all is the fuel/system ignition
I would have the injectors checked and have a pressure test done on the fuel manifold to check pump and fuel regulator valve.

Apr 05, 2013 | 2008 Honda Accord

1 Answer

2002 elantra cyl 2 random misfire


Hi there:A P0300 diagnostic code indicates a random or multiple misfire. If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A P0302 code, for example, would tell you cylinder number two is misfiring. Unfortunately, a P0300 doesn't tell you specifically which cylinder(s) is/are mis-firing, nor why.

For example, a P0302 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #2; same condition in P0301 - cyl #1, P0303 - cyl #3 and P0304 - cyl #4.

A code P0300 (or 301, 302, 303 or 304) may mean that one or more of the following has happened:
Faulty spark plugs or wires
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector(s)
Burned exhaust valve
Faulty catalytic converter(s)
Stuck/blocked EGR valve / passages
Faulty camshaft position sensor
Defective computer

About your possible solutions, if there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.

Random misfires that jump around from one cylinder to another (read: P030x codes) also will set a P0300 code. The underlying cause is often a lean fuel condition, which may be due to a vacuum leak in the intake manifold or unmetered air getting past the airflow sensor, or an EGR valve that is stuck open.


Hope this helps.

Mar 09, 2012 | Hyundai Motor 2002 Elantra

1 Answer

I have s 1997 Honda accord that has the check engine light on. Had the codes read and it says there is a misfire in two of the cylinders. I replace plugs, wires, cap, and rotor. Stills has the problem. Not...


did you have the cods cleared ever ? or is it a misfire you can feel when the motor is on, if this is the case check the fuel injectors in those cylinders, this will toss a misfire code also

Jul 22, 2011 | 1997 Honda Accord

1 Answer

I have a 1999 honda Accord EX. The engine check light comes on in the last couple of days and never goes away. I took my car to Advanced auto parts and one person in the store read the code of my car. The...


  • If you can please list the code that was read and also the symptoms for me I may be able to give more specifics on the code itself. As for a misfire in any cylinder I will lists some things that are indicative of this.

  1. Spark Bad fuel injector
  2. plug
  3. Plug wire
  4. Coil
  5. bad 02 sensor
  6. bad computer.
  7. out of gas
  8. bad catalytic computer
  9. burned exhaust valve
  10. poor compression.

  • Symptoms can be a hard to start engine.
  • Hesitation or bucking when accelerating.



  • A rotten egg smell from the exhaust can indicate a bad Catalytic Converter.
  • If it has been a long time since a tune up then plugs and wires may be in order.

Hope this helps and thank you for using FixYa.

Regards, Tony

Jun 22, 2011 | 1999 Honda Accord

1 Answer

I have a 2002 honda accord. The engine light is on. I bought original spark plugs and wires for it about 6 months ago. Light turned off for about 2 weeks. And has been on since. About 2 months ago it...


you need to provide the trouble code and not depend on guys at the parts store to diagnose your car. there are a thousand reasons that light could be on.

Sep 05, 2010 | 2002 Honda Accord

1 Answer

Check Engine Light coming on


get the soft ware up grade. and have the coils checked.

Mar 03, 2010 | 2002 BMW Z3

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