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Engine light on code is po440 - Solara Toyota Cars & Trucks

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P0440 Fuel tank vapor emission problem.
Could be as simple as a leaky gas cap.....or a missing gas cap.

Have you purchased gas and left the engine running as you filled it?
That will turn on the light too.

The P0440 is one of the most common codes and pops on the dash of 50% of cars on the road as they get older on a weekly basis.
An extremely small vapor leak on the fuel system will pop this code on.
Most of the time.....this code cannot be fixed......the answer is to buy a cheap OBD2 code reader and remove the code yourself every time it pops on........and on the 50% of cars with it......it shows up about 2 times a week.
When the engine light is on,you will loose 20% of gas mileage and has 20% higher emissions.....so turn it out!
Some cars will not go into overdrive with this light on.

Posted on Sep 04, 2009

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Posted on Jan 02, 2017

c17hydro
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SOURCE: 1997 toyota camry check engine light on,code po440,po420,po441,

P0420 is catalyst system efficiency below threshold (bank 1)

P0440 is evaporative emission control system malfunction

P0441 is evaporative emission control system incorrect purge flow

Posted on Mar 29, 2009

  • 323 Answers

SOURCE: engine light on PO441, PO344 and PO440 were the codes that came up. 2003 PT cruiser

P0440 and P0441 are refering to the NVLD pump. It is in the rear on the right side up near the fuel tank. P0344 is your cam position sensor on the rear (drivers side) of the cylinder head. The P0440 and 441 are probably why the check engine light is on and the 344 was stored from a previous event. Either way they are two different and unrelated problems. The NVLD (natural vacuum leak detection) pump is an emission item with no effect of the way it runs however it will keep the engine light on. The cam sensor will keep it from starting or intermittently run bad and not necessarily turn the light on. Both parts are easy to change. I hope this helps.

Posted on May 19, 2009

  • 625 Answers

SOURCE: 2000 cavalier check engine light code po440

I would try to replace the gas cap first. If that doesn't solve it, you wll have to take it yor local repair shop and have them perform a smoke test. The technician can pinpoint your exact problem. I just fixed a 2003 Cavalier and it was a split gas tank. No other way to find that problem without the smoke.

Posted on Jun 08, 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

ZJLimited
  • 17970 Answers

SOURCE: check engine light is on-

Causes: A code P0440 could mean one or more of the following has happened:
* The gas cap is not installed or working properly
* The purge solenoid has failed
* The canister is plugged and not working properly

Possible Solutions: With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
* Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
* Inspect the EVAP system for cuts/holes in tubes/hoses
* Inspect for damaged or disconnected hoses around the Evap purge solenoid
* Check and/or replace the sensor
* Check and/or replace the purge valve
* Have a professional use a smoke machine to detect leaks

Hope helps (remember to rate this).

Posted on Oct 12, 2010

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Po440 confirmed po440 pending why would it say that


Some fault codes require multiple stop/start cycles (operating the vehicle) before it will throw a check engine light. When the code says it is pending, the ECU has detected sensor values beyond the norm. It will monitor the systems and if the problem doesn't go away (the ECU continues to see erroneous values) it will confirm the code and turn on the check engine light.

Jan 31, 2016 | Cars & Trucks

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How to fix po440 trouble code


http://www.obd-codes.com/p0440

do the easiest cause first... did you recently get gasoline and didn't put the fuel cap back on correctly?

CLEAR the trouble code and re-seat the gas cap properly & then see if the check engine lights up with the same code... then go from there

i've embedded gbob59s link because it should have worked the first time

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Engine codes p0440,p0441


code po440 refers to evaporative emission (EVAP) system--malfunction ===causes --hose connections --intake leak--EVAP canister purge valve
code p0441 refers to EVAP system--incorrect flow detected===causes---hose connections --intake leak--EVAP canister purge valve.
once you fix the fault use a scanner to reset the engine light.

Apr 09, 2014 | 2005 Chrysler Town and Country

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What do all these codes mean PO135-PO300-PO404-PO102-PO440


po135 is o2 sencer on drivers side. will be the first one. po300 is random/multiple misfire.po404 is a egr code. po102 mass air flow circuit low input. po440 evap emission control system malfunction

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1999 Pontiac grand am wont let me put gas in tank,


sounds like you have a vent valve problem, po440 is that something is wrong with evap system, which vent valve is part of, start by checking that first make sure its not blocked with spider webing,good luck.

Oct 10, 2009 | 1999 Pontiac Grand Am GT

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I get a po440 and a po440 pd code


evap emission control system malfunction, po440

Jun 23, 2009 | 1998 Chevrolet Malibu

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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

1 Answer

1997 toyota camry check engine light on,code po440,po420,po441,


P0420 is catalyst system efficiency below threshold (bank 1)

P0440 is evaporative emission control system malfunction

P0441 is evaporative emission control system incorrect purge flow

Mar 29, 2009 | 1997 Toyota Camry

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