Question about 2005 Ford Focus

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What does the code po456 mean?

The check engine light code came on and i got it checked out it gave me the code po456.I need to know what that means.

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Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn't properly tightened. Any of the following could also be the cause:

* A small leak in any of the EVAP hoses or fuel tank hoses
* A small leak in the purge valve or vent valve
* The EVAP Canister may be leaking

Posted on Jan 08, 2013

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6ya6ya
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Posted on Jan 02, 2017

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sharcnet
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SOURCE: check engine light codes

Here is a link with everything you need to know.

http://groups.google.com/group/Windstar/web/imrc-trouble---p1537-p1538

If you find the info useful, please rate my solution.

Good luck!
- Jim

Posted on Jul 09, 2008

SOURCE: Check Engine Light

my steering column is no good

Posted on Jul 23, 2008

ZJLimited
  • 17970 Answers

SOURCE: what does this code mean?

P0460 Code - Fuel Level Sensor Circuit Malfunction.

I'm not sure what you mean by you mixed gas, does that mean you switched to a different station or octane level? Does the gas gauge still work fine? As long as it works fine you could keep driving for a few more tanks to see if the problem goes away. If you overfill or run the tank too low it can cause issues with the fuel sender.

When the pump clicks off, you're done filling. Though at 175K miles the fuel sender could just have gone bad. If you start to see symptoms then take it into the shop definitely. About the only thing you could do prior to that is if you're comfortable you could use a digital volt ohm meter (DVOM) and measure the sensor readings at the tank (at the electrical connections).

Good luck.

Posted on May 11, 2010

Mackmech11
  • 122 Answers

SOURCE: check engine lights on 99 ford ranger ODB codes

DTC P1506 is set when the PCM detects the engine idle speed is greater than the desired rpm. This is most commonly caused by a dirty or bad IAC valve. Cleaning the throttle body will, most likely, cure this problem.

p1131 means that the bank #1 O2 sensor, the bank closest to the firewall, cylinders 1-3 is showing a lean mixture. Could be a vacuum leak, a misfire on that bank, an exaust leak upstream of the O2 sensor, fuel control or injector problem on that bank, a faulty O2 sensor, faulty PCM, faulty wiring in the engine control wiring harness.

P0171
In the vast majority of cases, simply cleaning the MAF sensor does the trick. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling also Inspect all vacuum and PCV hoses, replace if necessaryCheck for a dirty fuel filter and proper fuel pressure

Posted on May 19, 2010

SOURCE: What does check engine light code po 1405 mean?

P1405- DPF EGR Sensor Upstream Hose Off or Plugged

Posted on May 26, 2010

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Hi Jeff
Fault code P0456 means evaporator emission control small leak detected.
you need to check the tank filling cap, evaporator valve, hoses and connection for leak.
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What does the code p0456 mean?


Here's what comes up.click on link.Trouble Code: P0456

EVAP Small Leak (0.020") Detected

Possible Causes:


EVAP fuel tank or canister vapor hoses leaking or damaged.EVAP system component leaking, fuel cap loose or missing.Leak detection pump damaged or leaking.

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1 Answer

Check engine light gave me the po456 code


Usually this P0456 code is caused by an incorrect or faulty gas cap. Filling the fuel tank with the engine running could conceivable cause this code as well or if the cap wasn't properly tightened. Any of the following could also be the cause:

  • A small leak in any of the EVAP hoses or fuel tank hoses
  • A small leak in the purge valve or vent valve
  • The EVAP Canister may be leaking

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Check your gascap, make sure it is tight. Check your PCV valve and look at large hoses going to a canister. This code means you are not getting the proper vacuum in the system that vents your gastank or engine.

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Hi, both codes mean: Evaporative Emission Control System Leak Detected (very small leak).
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