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Code p1399 misfires like code is p1399 is it egr

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philschneide
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SOURCE: po300 random mulitple misfire detected p1399

If only one of your cylinders was misfiring, you probably would be getting a more specific code than P1399.
Also check the distributor rotor along with the cap and coils and wires (as mrgreenz suggests); the EGR valve to make sure it doesn't leak; your fuel pressure which can cause random misfires if the pressure is too low; and injectors if they are really dirty. If you have really high mileage, I probably would first just change out the plug wires with a new set, then reset the DTC and see if the code comes back.
Hope this is helpful as well.

Posted on Nov 27, 2009

Testimonial: "I changed the plugs and put an additive to clean the fuel injectors and changed the egr valve. Still running rough when at idle"

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emissionwiz
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SOURCE: 2002 Honda Odyssey has a miss under acceleration. Code p1399 AND multi miss fire codes.

Please read the web page at this LINK on misfire diagnosis and testing, it is the best i have found for learning what causes a misfire. The info is copyrighted so I can't copy and paste it for you.

Posted on Jul 02, 2012

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2001 honda odyssey has a p1399 code changed spark plugs and checked coils but still has a rough idle maybe egr valve or ports blocked with carbon


code p 1399 refers to random misfire ===causes --fuel /ignition--MAP sensor---IAC valve ( idle air control valve )
misfires are more from faulty injectors and low fuel pressure than from electronic problems
unless you have been burning lots of oil , the ports will be clean so have the injectors serviced

Aug 31, 2016 | 2001 Honda Odyssey

1 Answer

2002 Honda Odyssey has a miss under acceleration. Code p1399 AND multi miss fire codes.


Please read the web page at this LINK on misfire diagnosis and testing, it is the best i have found for learning what causes a misfire. The info is copyrighted so I can't copy and paste it for you.

Jul 02, 2012 | 2002 Honda Odyssey

1 Answer

I have a 2000 honda accord se and the obd scanner pulled up a p1399 code im trying to find out what the decription is


right off all data

p1399 is a random misfire code and honda has reported for various models that this could be caused by clogged egr ports, in addition there is the possibility that the valve clearance spec may be out of range.check plugs and wires first and proper gap.

Aug 09, 2011 | Honda Accord Cars & Trucks

1 Answer

Changed cat p1399 code came up and random misfire codes


Probable Causes
1- EGR block passage
2 - Valves out of range.

May 19, 2011 | 2001 Honda CR-V

1 Answer

After changing out the spark plugs, wires, rotor, and rotor cap, the check engine light remains on. (Took it in to diaganostics at Auto store, they get the reading that there is still a misfire, even after...


Honda does not supply a diagnostic flow chart for this code. P1399 is a random misfire code and Honda/Acura has reported for various models that this could be caused by clogged EGR ports. In addition there is the possibility that the valve cleareance specification may be out of range

May 03, 2011 | 2001 Honda CR-V

1 Answer

What is scan code P1399 and how to fix the problem.


P1399- Manufactures control Ignition system OR Misfire

If only one of your cylinders was misfiring, you probably would be getting a more specific code than P1399.
Also check the distributor rotor along with the cap and coils and wires; the EGR valve to make sure it doesn't leak; your fuel pressure which can cause random misfires if the pressure is too low; and injectors if they are really dirty. If you have really high mileage, I probably would first just change out the plug wires with a new set, then reset the DTC and see if the code comes back.

Sep 30, 2010 | 2001 Honda Accord

2 Answers

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

4 Answers

Po300 random mulitple misfire detected p1399 misfire any cylinder


If only one of your cylinders was misfiring, you probably would be getting a more specific code than P1399.
Also check the distributor rotor along with the cap and coils and wires (as mrgreenz suggests); the EGR valve to make sure it doesn't leak; your fuel pressure which can cause random misfires if the pressure is too low; and injectors if they are really dirty. If you have really high mileage, I probably would first just change out the plug wires with a new set, then reset the DTC and see if the code comes back.
Hope this is helpful as well.

Nov 27, 2009 | 2000 Honda Accord

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

2 Answers

Have code p1399 on a 1999 acura integra 1.8 dohc


P1399- Acura = Random/Multiple Cylinder Misfire Detected

Acura forums state that It could be a coil pack or O2 sensor, or EGR.

Sep 18, 2009 | 1999 Acura Integra

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