Question about Hyundai Motor 1998 Accent

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Codes po 123 po335 po446

I have codes and am trying to figure out wht they are for my accent , PO 123 PO335 PO446

Posted by kkleopard02 on

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1 Answer

Stephen

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  • Hyundai Master
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Code 123 is a problem with the throttle position sensor circuit.
Code 335 is a problem with the crank position sensor circuit.
And code 446 is for a EVAP control valve problem.
These components would need to be tested to find out if they are faulty.

Posted on Dec 13, 2012

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5 Related Answers

freetek

Steve Allison

  • 5569 Answers

SOURCE: SONATA V6 2000 DOES NOT START NO FIRE CODE PO335

The crankshaft sensor determines when to fire the plugs; if it has failed, no plugs will fire.
If you have no mechanic friends who know how to test this sensor, you should probably invest in an aftermarket service manual. They have simple tests for most sensors and conditions that don't require costly equipment or detailed knowledge.
I prefer Haynes and they are available on line here:
Haynes Sonata Manual
You may also find them elsewhere for a few dollars less.

Posted on May 18, 2009

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mike mountain

  • 1916 Answers

SOURCE: trouble code PO335 for a 2000 hyundai accent

P0335 is your crank sensor, it is either on it's way out or is finished, it is essential that it be replaced or you will be stranded-not too hard to do if you are somewhat handy, part is usually not too expensive either.

Posted on Dec 23, 2010

motor1258

Mike Butler

  • 6674 Answers

SOURCE: i have Hyundia accent 2001 with the code po335

That is the code for faulty connection to, or bad Crankshaft position sensor. Not 100% sure of exact location but should be near flywheel, or at front near crankshaft.

Posted on Feb 02, 2010

Anonymous

  • 100 Answers

SOURCE: MY CAR WAS PUT ON

hi p -codes are as follows po 301 cylinder 1 missfire detected
po 304 cylinder 4 missfire detected
po 335 crankshaft position sensor A circuit malfunctio
po 750 shift solenoid A malfunction

Posted on Feb 23, 2011

dttech

dttech

  • 4803 Answers

SOURCE: I have a 2004 Sante Fe 4 cyl. The check engine

OK To start with, you need to forget about the air conditioner until you get your engine running correctly. The HVAC is controlled by the Powertrain Control Module (PCM). The PCM is probably not allowing the HVAC to run due to all the engine misfire codes you are getting. It may be someting else, but until you get your engine running right, you could be spinning your wheels.

I have no clue what you are talking about when you say "Ignition Sensor" - there is no such sensor on any vehicle that I am aware of. There are many sensors that can affect the ignition like the Crankshaft Position Sensor, but none are called "Ignition Sensor".

P0300 Simply means that there is more than one cylinder misfiring.
P0301 means that cylinder #1 is misfiring, P0302 means that cylinder #2 is misfiring, P0303 means that cylinder #3 is misfiring, and P0304 means that cylinder # 4 is misfiring. (these are what are known as "current faults". The codes ending in "P" mean the same thing, but they are "pending" codes. Current faults MUST be dealt with FIRST.

The P0446 is not a valid code for a 2003-2005 Hyundai Santa Fe as far as I can tell. I tried to look the code up by application and it simply is not there. You may want to read the code again. Sometimes, if you are reading the codes with a "generic" OBD code reader, it will give the closest description it can for a "Vehicle-Specific" code. They are not allways correct. You may want to scan your computer with a scanner that is equipped with the Vehicle-Specific software for your vehicle. You will probably get a different rendering of the code.

The "generic" description of P0446 is "Evaporative Emmission Control System Vent Control Circuit" Again, the DTC list for your vehicle lists similar codes: P0445, P0447 and P0448, however it skips over the P0446 code. If you in fact have a problem with your EVAP vent solenoid circuit, it could, concievably be the cause of your misfire problem. It is possible that the vent solenoid is causing a huge vacuum leak. NOT LIKELY that it is causing the misfire codes, but POSSIBLE.

Anyway, there are literally HUNDREDS of parts that can be the cause of a misfire. This needs to be PROPERLY DIAGNOSED to determine the cause. It could be anything from worn-out spark plugs, a vacuum leak, a faulty fuel pump, all the way to a blown head gasket or cracked cylinder head. Whatever the actual cause may be, it is obviously affecting all 4 cylinders. (This will rule out some things).

Please also review this article:
What Else Could Be Wrong?

Posted on Jun 21, 2011

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2 Answers

Code P0446 2008 chevy tahoe


PO 446 Evap System Vent Solenoid issue

Nothing to do with the canister

Have to test parts & only replace those that fail

Smoke the system & test all the evap components

Scan tool data may help

Google your codes

Type: OBD PO446

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Codes po 223 po 123


PO 123 Throttle Position Sensor Circuit High Input
PO 223 Throttle Position Sensor Circuit High Input

Probably two different switches on the sensor. I'd say get a new Throttle position sensor. Try starting it with light pressure on the gas pedal, if it satrts it's definetly the TPS.

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PO 446 --Evap Vent Control Circuit Malfunction

You need to work from factory diagnostic charts
& have an Evap Smoke Machine not be changing parts
until you find the problem

Mar 06, 2013 | 2003 Pontiac Grand Am

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Car dies while driving


Your fuel pump needs cleaning, I had same problem

Feb 24, 2012 | 2002 Cadillac Seville

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MY CAR WAS PUT ON A MACHINE AND IT CAME BAC THE FOLLOWING CODES: PO 301, PO304, PO335, AND PO 750. I DONT KNOW WHAT TO DO MY MECHANIC SAYS THAT THE SHIFT SOLENOID IS LOCATED IN MY TRANSMISSION AND HE...


hi p -codes are as follows po 301 cylinder 1 missfire detected
po 304 cylinder 4 missfire detected
po 335 crankshaft position sensor A circuit malfunctio
po 750 shift solenoid A malfunction

Feb 23, 2011 | Hyundai Sonata Cars & Trucks

1 Answer

Check engine light is on in my 2005 altima 2.5 got it scanned and the codes i got were P0335 /P0725/P0420 also car keeps stalling


po335 and 725 bad crank sensor and this is also reason for stalling.po 420 catalyst has lost efficiency....needs new catalytic converter ...covered under 8year 80000 mile emmisions warranty.

Feb 08, 2011 | 2005 Nissan Altima

1 Answer

Nissan Altima 2.5, service engine light on car is hard to start


you need to hook up a scan tool to see what fault is causing check engine light.i would be willing to bet you will get a po335 crank sensor or po 340 cam sensor.high failure rate on these vehicles.

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05 corolla, after gassing up, whether partial or full fillup, car is hard to start. will crank but runs rough before going dead. after 3-4 starts and runs fine. toyota dealer checked codes; po 171 system...


Sounds like you may have an issue with the check valve on your in tank fuel pump. When these go bad, you have to crank several time to build up enough pressure in the fuel rail for engine start. With a good check valve, the fuel pressure will not bleed off and the pressure is retained for the next engine start.

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1 Answer

SONATA V6 2000 DOES NOT START NO FIRE CODE PO335


The crankshaft sensor determines when to fire the plugs; if it has failed, no plugs will fire.
If you have no mechanic friends who know how to test this sensor, you should probably invest in an aftermarket service manual. They have simple tests for most sensors and conditions that don't require costly equipment or detailed knowledge.
I prefer Haynes and they are available on line here:
Haynes Sonata Manual
You may also find them elsewhere for a few dollars less.

May 17, 2009 | 2006 Hyundai Sonata

2 Answers

Trouble shooting po441/po446


Go and buy a VSV for CCV. That should fix your problem

Jul 12, 2008 | 1999 Toyota Camry

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