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1998 Honda civic with codes p0301 and p1399

Can anyone tell me what the problem is and how to fix it? I took it to the mechanic and told me my head gasket is blown, but when I took it to the other mechanic he says it's not because there is no water in the oild and my car drives fine . Could you guys help me out? Thanks

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  • Cars & Trucks Master
  • 2,101 Answers

The code po301 is a misfire . just change your spark plugs,and the code po1399 is yourdown stream o2 sensor. you need a new o2 sensor

Posted on Nov 02, 2012

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  • 2 more comments 
  • Camille Dizon Nov 03, 2012

    I change my spark plugs and distributor cap already. The other code is P1399. Is that the same as p01399??

  • teds repairs
    teds repairs Nov 03, 2012

    yes it is the same . it is a po1399 that is your o2 sensor is bad

  • Camille Dizon Nov 03, 2012

    thank you!

  • teds repairs
    teds repairs Nov 03, 2012

    you are very welcome. and if you need help please ask thank you ted

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Posted on Jan 02, 2017

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SOURCE: my honda civic 98, had a check light engine ON P1361 and P1399

P1361 is an intermittent signal from the TDC sensor .. thats located under the top timing belt cover on the right side of the engine .. about half way down that cover is the connector for the TDC sensor .. check that connector and its wiring ...P1399 is an ignition problem .. and thats likely caused by the TDC sensor being intermittent .. you might be able to fix the connector if its loose or full of water but the sensor is hard to get to .. very tight place to work in but not impossible .. this is something that should be fixed soon .. no emergency but the timing may drift off if the problem persists ..

Posted on Feb 22, 2010

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  • 32 Answers

SOURCE: head gasket

see if you can buy the haynes / chilton or othere repair manual that will get you stated ,
also stop at a good year and see if they can print you out the alldata sheet for that procedure.

or go to alldata.com and pay for a printout .
then the fun begins

Posted on Sep 01, 2009

  • 1 Answer

SOURCE: How much will it cost

it cost me around $800 with labor, I was told mines was blown out pretty bad,,,,

Posted on Sep 17, 2010

  • 9 Answers

SOURCE: I have a 99 Honda civic that has been running hot.

Headgasket gone

Posted on Jul 01, 2011

  • 71 Answers

SOURCE: 1998 hona civic ran hot, leaking hose, replace,

look for coolant in your oil ,the oil will look ''milky'' if there is coolant mixed in it. if you have milky oil then you have a blown head gasket. if thats not the case then we have to look elsewhere. hope this helps

Posted on Nov 07, 2011

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1 Answer

Trouble Code p0420 and p1399


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Check engine light on and was reading a p0505 code drove to the store and engine like started blinking got home hooked the code reader and now have another code of p0309 and p1399


Code 505 is a problem with the idle air control valve.
Code 309 is noting a cylinder 9 missfire on engines with 10 cylinders which would not include yours. That may be a fluke or not the right number.
Code p1399 is brand specific and for Honda it usually means random miss.
The code 505 could be the idle control valve or a vac leak. The computer can not control idle speed by using the valve.
The miss codes mean the cylinders are not producing power when they should be. Which may or may not be ignition. It could also be fuel or mechanical problems.
If you have not replaced the plugs and done the usual maintenance stuff in the past year or two, I would start with the basics.
Be sure and look at the inside of the dist cap and rotor.

Jan 18, 2013 | 1998 Honda Civic

1 Answer

I have a 99 Honda civic SI with p1399 code I've


CHECK THE DISTRIBUTOR AND DISTRIBUTOR CAP FOR CORROSION PRETTY COMMON ON THOSE HONDAS.

Jun 29, 2012 | Cars & Trucks

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Honda civic 1998 EX check engine light on codes p300 p0301 p302 p303 p304


I don't think it is your catalytic converter because your light usually flashes and a bad cat I never heard of them causing a misfire. I ran your other code it is for a faulty EGR system. Exhaust gas recirculation excessive. You are getting too much exhaust gas back in the system. This will cause your misfire. Go-to a trusted mechanic and have them check out your EGR system.

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2000 honda crv p1399 and p0301 check engine codes


Code P1399 is specific to Honda - it is an error code for "multiple variable misfires detected". P0301-P0304 are common OBDC codes for all cars, specifically "misfire in cylinder X".

You will get the P0301-P0304 codes on your OBDC reader when you plug it in (if actually errors), but will only find the P1399 if you select Honda as the manufacturer.

Just got these errors today on my CRV 2000. Now I have to figure out what is causing two of the cylinders to misfire.

Mar 08, 2010 | 2000 Honda CR-V

1 Answer

My honda civic 98, had a check light engine ON P1361 and P1399


P1361 is an intermittent signal from the TDC sensor .. thats located under the top timing belt cover on the right side of the engine .. about half way down that cover is the connector for the TDC sensor .. check that connector and its wiring ...P1399 is an ignition problem .. and thats likely caused by the TDC sensor being intermittent .. you might be able to fix the connector if its loose or full of water but the sensor is hard to get to .. very tight place to work in but not impossible .. this is something that should be fixed soon .. no emergency but the timing may drift off if the problem persists ..

Feb 22, 2010 | 1998 Honda Civic

2 Answers

I have a honda civic lx 1998 I need to know what the troubleshooting code P1399 means? The engine number is D16Y7


Get your self a EGR valve it is sticking or the EGR port is blocked i can tell you how to test it you have a volt meter but i am 100% THAT WHAT IT IS
Code P1399 is a pending misfire code.
HOW TO TEST

1. Check EGR position sensor voltage on the White/Black wire at idle - look for 1.1 - 1.2 volts with the EGR valve closed. If the EGR position sensor voltage is higher than 1.2 volts, the EGR valve is stuck open.

2. Can unplug the EGR valve and apply power to the terminal on the EGR valve that the Pink wire would normally go to and ground the terminal on the EGR valve that the Black wire would normally go to and see if the engine stalls at warm idle.

Oct 14, 2009 | 1998 Honda Civic

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