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What does the codes p0301 and p034 and p0300 mean on honda odyssey 1999

The check ingene came on i getting the code p301 and p034 and p0300 please hell.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Question regarding a honda odyssey 1999 check engine light codes.

Ramon
P0420 relates to the catalytic converter. The computer sees little or no improvement in the exhaust before and after going through the converter. Either your oxygen sensors need replacement (3 total) or you need a new catalytic converter.
What is the mileage on the vehicle? Does it run well? Oxygen sensors generally start to fail after 70,000 miles. Catalytic converters usually fail because the engine is runnig rich and the owner ignores that fault for months. This causes the catalytic converter to overheat and fail.

P1456 relates to the evaporative emission system. This system holds the gas fumes in the system so they are not vented to the atmosphere. The most common cause of this code being set is failing to properly tighten the gas cap after refueling. Take the cap off and clean the sealing O-ring. Put it back on and tighten till it clicks 3 times. Make sure you have the correct gray colored gas cap. Clear the code and see if it resets within a few days. If it does, try replacing the gas cap.
Charlie

Posted on Jun 26, 2008

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  • 49 Answers

SOURCE: 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.

Posted on Jan 25, 2009

dsacco86
  • 1077 Answers

SOURCE: 1999 Nisian Maxima and need to know what codes mean?

P1320 Ignition Signal
Signal wire from distributor
P0325 Knock Sensor 1 Circuit Malfunction (Bank 1 or Single Sensor)
O2 senor ( The one before the cat converter )
P0300 Random/Multiple Cylinder Misfire Detected
The misfire detection monitor, a software strategy built into the computer, is designed to detect an engine misfire. The computer can also normally identify the specific cylinder in which the misfire has occurred. A misfire is nothing more than a lack of combustion, which can be caused by poor fuel quality or metering, low compression, lack of spark or unmetered air entering the engine. There are other possible, less obvious causes as well, such as uncommanded Exhaust Gas Recirculatin (EGR), flow. When the misfire monitor detects a misfire, it will trigger the check engine light with the specific cylinder number as the last digit in the P030X code. For instance cylinder 1 misfire is P0301, cylinder 2 is P0302 etc. In this case we have either multiple cylinders misfiring, or the computer simply can't determine the specific cylinder, and as such we are left with the P0300 in computer memory.
Possible Causes:
Fuel injectors, related wiring, sensors and computer issues
Running out of gas, or poor fuel quality
Evaporative emissions system (EVAP) concerns: fuel vapors leaking into engine
Incorrect fuel pressure

EGR system concerns: leaking EGR valve or restricted ports
Base engine concerns: low compression, valve train problems and timing issues
Ignition system concerns including, but not limited to:
Faulty spark plugs
Faulty coil or related wiring
Ignition module or related wiring issues
Ignition related sensor faults or wiring issues

Posted on Apr 13, 2009

  • 295 Answers

SOURCE: 1999 Honda Odyssey p0420 Error Code

Cat efficentcy. replace the converter.

Posted on Jul 07, 2009

merctechniqu
  • 229 Answers

SOURCE: 2003 mercedes Benz C240 codes P0300, P0301, P0302

P0300 Random Misfire Detected
P0301 Cylinder 1 Misfire Detected
P0302 Cylinder 2 Misfire Detected
P0303 Cylinder 3 Misfire Detected
according to this fault codes first mark ignition coils
3 ---------------- 6
2 ---------------- 5
1 ---------------- 4
RB-------------LB
this right banks and left bank, please remove Ignition coils with lids and spark plugs from right bank and swap with left bank, if fault code change as
P 0304 Cylinder 4 Misfire Detected
P 0305 Cylinder 5 Misfire Detected
P 0306 Cylinder 6 Misfire Detected
You can Identify it's a faulty ignition system then next swap ignition lids from ignition coils be careful each coils have two lids one short and other long bit deference and when you remove and fix it to the car keep in mind correct order because each coil two different fire for two spark plugs don't mix up, if you mix it can create the fault code.if you detect any fault ignition coils or spark plugs or lids replace that and also whether god or bad recommend to replace spark plugs, find the right that's most important thing, if this way couldn't found the any ignition fault next step is check fuel presser, when the engine running fuel presser must be around 4.5 bar without engine running must be 4 to 6 bar if the fuel presser too low need to check two different things one is fuel pump other is fuel injectors, in this case you can swap injectors from right bank to left bank and find is the injectors leaking, if not leaking faulty fuel pump.is this information helped you? if yes please leave a comment,

Posted on Oct 16, 2010

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1 Answer

PROBLEM CODES;P0301,P0302,P0304,P0300,P1399,07-02,09-02,07-03


po301 to po304 are miss fire codes, 301 cylinder 1, 302 cylinder 2 Etc, p1399 means that this must be a Honda manufactured vehicle. All are misfire codes, Could be plugs, wires, coils. ETC, Check and you will find the problem. God-Bless!

May 23, 2015 | Cars & Trucks

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2000 Honda Odysee P0300 - P0306 and P0740, TCS all at once.


You can get a reman trans for about $2500 or rebuild yours
for $1700 locally

The misfire could be spark plugs & a couple of ignition coils
you do for $100

Egr about $80 you do

You need the trans diagnosed at a trans shop & road tested

Nov 22, 2012 | 2000 Honda Odyssey

1 Answer

2009 sienna setting c.e.l. light multiple missfire codes


Change...distributor cap ..spark plug wires or spark plugs

Jul 30, 2012 | 2009 Toyota Sienna

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My honda odyssey 2002 has all this codes p0300,p0301,p0302,p0303,p0304,p0305,p0306,pp0307. Pls, what shall i do first 'cause i spend too much for gas.


These codes are for a cylinder misfire. Take it to a pro to find out which one(s). Could be an injector or an ignition coil

Aug 20, 2011 | 2002 Honda Odyssey

1 Answer

I get engne code p0300 what does that mean and what do i do already changed plugs and wires


check the coil, Normally when that code comes up its followed by more, as in P0301 02 03 , which would indicate which cylinder is being effected, P0300 Random/Multiple Cylinder Misfire Detected is what the code means and any of these could effect that code being thrown
  • 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

Jul 10, 2011 | 1999 Dodge Grand Caravan

2 Answers

Hooked up computer to dodge ram 1500 4.7 liter magnum code came up p300 p301 what does this mean


P0300 is the random misfire code. P0301 is the misfire code for Cylinder #1. When was your last tune up? non platinum spark plugs should be replaced around 30-60k along with the wires. With platinum plugs that extends out to 100k. I would try a tune up first plugs and wires. Reasonably cheap fix that is a prevenitive maintenace item anyways. If you have just recently had a tune up or it does not solve your problem you most likely have a bad coil pack on cylinder#1.

Hope This Helps.

Zeppelinx12

Mar 16, 2011 | 2004 Dodge Ram 1500

1 Answer

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.

Jan 25, 2009 | 1999 Toyota Camry

2 Answers

What do these codes mean?


Code p300 - random misfire
code p301 - testing and results
code p303 - misfire cylinder 3
code p306 - misfire cylinder 6

i love code questions!!! i'm so good in this!

Jun 14, 2008 | 2001 Lexus IS 300

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