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I need to know what codes PO440 and PO446 are for Nissan pickup.

My Nissan Pickup check engine light came on and I checked it with computer. Codes po440 and Po446 came up but can't find specifics in repair manual.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 327 Answers

SOURCE: need to know what PO440, PO441, and PO446 codes

p0440 is the evaporative emission control system p0441 is incorrect evap purge flow and p0446 is evap vent control circuit this means the charcaol canister is defective the only problem is they are in the rear of the car above the gas tank and they are metal when you gas up your car there are warning signs DO NOT TOP OFF TANK meaning when gas pump shuts off do not put in more gas ! reason being is the gas overflows into the metal canister and gets trapped and absorbs moisture , and you know what water does to metal .... rust ! no signal to solenoid = check engine light and codes sorry to say you are looking at about 600-700 dollars to fix

Posted on Aug 04, 2010

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johnr1959
  • 56 Answers

SOURCE: 94 nissan pickup se how to reset check engine light

disconnect the negative battery cable re hook it back on.. this is only a temp solution if there is a problem it will come back on in the next 100 miles

Posted on Jan 30, 2009

stevehinrich
  • 61 Answers

SOURCE: 1997 maxima emission code repair on 400 & 500

P0400 is auxillary emmisions control and P0500 is vehicle speed idle speed control auxiliary inputs.

Posted on Mar 02, 2009

  • 1 Answer

SOURCE: 2001 Camry code po440,po441,po446 after engine

2001 camry code po440,po441,po446
what kind of problem and how can be solved
sam

Posted on Jun 30, 2009

  • 110 Answers

SOURCE: how do i check my codes in a 86 nissan z24 pickup

The self-diagnostic system identifies malfunctions of signal systems such as sensors, actuators and wire harnesses based on the input signals received by the ECCS control unit. Various malfunctions are coded and displayed on the control unit by a series of blinking red and green lights. Results of the self-diagnosis are retained in the control unit's memory and are displayed when the mode selector, located on the rear of the control unit, Fig. 122, is switched to the On position. When displaying malfunction codes, the code number can be determined by counting the number of light pulses. The red light represents the first digit of the code, while the green light represents the second digit of the code. For example, a Code 32, would be displayed as three flashes of the red light, followed by two flashes of the green light. Malfunction codes can be translated as follows:

  1. Code 11 -- Crank angle sensor circuit malfunction.
  2. Code 12 -- Air flow meter malfunction.
  3. Code 13 -- Water temperature sensor circuit malfunction.
  4. Code 21 -- Ignition signal malfunction.
  5. Code 23 -- Idle switch circuit malfunction.
  6. Code 24 -- Transmission switch and clutch switch circuit malfunction.
  7. Code 32 -- Starter signal malfunction.
  8. Code 42 -- Throttle sensor circuit malfunction.
  9. Code 43 -- Injector circuit malfunction.
  10. Code 44 -- All monitored systems satisfactory.

Posted on May 10, 2010

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1 Answer

Check engine codes: PO441,PO446,PO440


These codes are for the evaporative emission control system , the system has detected a malfunction of some kind . Check your fuel cap for proper fit and seal.

Dec 12, 2015 | Cars & Trucks

1 Answer

I replace the evap emission but i still have the codes po440,po446,po441 what the next step.


Check all the vacuum lines especially around the intake, make sure the are all attached and there is no cracks in them.

Sep 22, 2014 | 2000 Toyota Corolla

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My 02 camry le failed emmission test whats wrong error codes po440, po441, po446, po420


You have codes for a failed exhaust converter,PO420,
EVAP System problem PO440,Incorrect Purge Flow PO441,
Evap Vent Control issues,PO446

Your car is all messed up

That should have been all checked, BEFORE you spent time
in line for inspection

If all the codes are for real & not a false report

You will need new spark plugs,ignition & fuel checked,
new exhaust converters,new evap purge valve,new evap
vent solenoid & possibly vacuum leaks resolved

You either bought someones neglected vehicle or never
do a thing but drive it

May be easier to get a different vehicle,your repair bill
will start at $1,000 & go up, from not being proactive & taking
care of what is required in owning any vehicle (lack of knowledge)

You will need the oxygen sensors also & no, they won't fix the
amount, of what appears to be several failed items, all at one time

So much for Toyota being better than other vehicles

Apr 03, 2013 | 2002 Toyota Camry

4 Answers

My check engine light come up w/ all these code P0305,P0440,P0441,P0446 what's wrong Thanks


po305 is related to missfire on #5 cylinder
po440 is related to fuel tank pressure
pO441 is for evaporator purge flow malfunction
po446 relates to vent control valve electrical circuit malfunction

missfire is seperate from the other codes
as for the other three codes replace the vent control valve solenoid located near the charcoal canister the oth3er codes can relate to a faulty solenoid

after replacing light will only go out if you clear through a scan tool or three drive cycles of over 10 min each

Jan 10, 2011 | 2000 Lexus RX 300

1 Answer

My check engine light comes on at highway speed goes off in town.


Hi,


The only way to get rid of check engine light problem is to have a diagnostic computer hooked up to the computer and read the engine codes. You can test your own codes right from here with just a flathead screwdriver. You can also go to autozone.com and register for full free online repair manual for your vehicle.

Thank you !

May 20, 2010 | 1994 Nissan Pickup

2 Answers

Check engine light is on


The only way to tell why the light is on is to have a diagnostic computer hooked up to the computer and read the engine codes. I have a 93 nissan pathfinder with the computer under the passenger seat, You can test your own codes right from here with just a flathead screwdriver. You can also go to autozone.com and register for full free online repair manual for your truck

Oct 13, 2009 | 1994 Nissan Pickup

3 Answers

Toyota seinna po440, po441, po446


you have to understand that there is a leak in the system other than the gas cap for the evaporative system. The system needs to be professionally closed, and smoke introduced into to find the leak, and a through component check, eg.. purge valve vapor canister vent solenoid all functioning correctly

Jun 17, 2009 | 1998 Toyota Camry

2 Answers

2001 Camry code po440,po441,po446 after engine


2001 camry code po440,po441,po446
what kind of problem and how can be solved
sam

Jun 08, 2009 | 1998 Toyota Camry

2 Answers

1997 toyota camry check engine light on codes are po441,po446


p0446 is an evap code for incorrect purge flow, check the rear vacume switching valve. its above the rear sub frame

Apr 05, 2009 | 1997 Toyota Camry

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