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My 2001 cherokee xj won't pass emissions test has po455 code and the mod $D1 tests are low 11,13,31,33,51,52,53,61,62 the other are ok. what is the problem and how do you fix it?

I have an action cp9580a. And snap on MT2500 SCANNER

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  • Cars & Trucks Master
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Code 455 is for a large leak in the evap system.
The computer vents the gas tank to the vapor canister by opening and closing valves.
Have you checked the evap system for leaks ?

Posted on Jan 18, 2013

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Posted on Jan 02, 2017

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SOURCE: I FAIL THE EMISSIONS CODE# P0410- SECONDARY AIR INJECTION

I have a 2001 STS that had the same problem - Service Engine light and returned the P0410 code. It ended up being a small rubber hose that had pulled off one of the plastic lines in the secondary air system. In fact, I just fixed this last night.

Pull off the top engine shield (the one covering the motor and the fuel injectors, not the plastic one at the front of the car) and look for loose lines, hoses or wiring.

Also - if you remove the shroud under the engine (you just have to pull out a bunch of plastic retaining plugs) you can get at the lower elements of the SAS. Look for loose lines, hoses or wiring.

You could be fortunate and just have a loose line. Does the caddie run OK?

Posted on Aug 02, 2010

emissionwiz
  • 75842 Answers

SOURCE: 01 sonata gls v6...code po455, po442. what are

If you have an EVAP leak, you will get the following codes:

1. P0442 evap emission control system leak (small).
2. P0455 evap emission control system leak (large).

If these codes come up, you need to trace the leak. The most common place for the systems to leak besides the gas cap is at the service port under the hood, the hoses at the purge solenoid, and the hoses around the fuel tank. Check all your EVAP hoses from under the hood , all the way back to the gas tank. You can repair a split hose easily. Buy some 14.5mm EVAP hose at the auto parts store. Just cut the split or cracked section out and attach the new hose.

I can only say that u must fix the code issue and light to pass state emission test, if u reset the light they will know, the system will tell the tester that the system is not ready, this will cause a fail.

Posted on Mar 16, 2009

  • 8 Answers

SOURCE: 1996 doge intrepid wont pass emission test because IM monitors ar

Just maybe your O2 sensors are not operating properly. They may be requiring your engine to heat them up to get upper temperature readings but not lower. You can easily diagnose these and all other sensors and problems by purchasing a Hains manual at your local Auto Zone or Advance auto store which will greatly aide you in diagnosing all your auto needs. And the fault symptom index at the beginning of the book will ease your troubles with professional one on one advice with step by step instructions. Its like having your own ASE certified mechanic at your finger tips. Good luck.

Posted on Mar 05, 2009

  • 67 Answers

SOURCE: Emission test found some trouble codes

U0121 Communication error to ABS HU/CM

Posted on Apr 06, 2009

  • 3640 Answers

SOURCE: Failed Emision test

po442 is evap emission control system leak (small) 1 of the lines for emissions is leaking. po455 is-- emission control system leak (large). turn off light with code scanner after it is fixed.

Posted on Sep 01, 2009

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2 Answers

Emission leak po455


All you have to do is google the codes

OBD Code PO455 & your vehicle

Lot of info on the internet
Lots of blogs on your make car
You Tube Video to watch

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I I have a 2001 Jeep Cherokee xj : It Will not pass emissions test. These mod tests were all low: 11 13 31 51 52 53 61 62 all of the others were ok what does this mean?


Code 455 is for a large leak in the evap system. The evap system vents the gas tank to the vapor canister.
Have you checked the system for leaks ?

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Contact the dealer for a possible software update to cure this issue.

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The code should mean the memory voltage to the computer has been off at some point in time.
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2001 jeep grand Cherokee....code po443. What should I look for? Can I still drive it with this code until i fix it?


P0443 is for EVAP Purge Solenoid Circuit.
You can still drive it, but it'll cause emission related problems and you won't be able to pass emissions.
To replace it, it's under the hood, drivers side, near the rear corner and is shaped like a little cylinder. Fairly easy to go to a local parts store and replace yourself.

Apr 21, 2012 | 2001 Jeep Grand Cherokee

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Failed Emision test


po442 is evap emission control system leak (small) 1 of the lines for emissions is leaking. po455 is-- emission control system leak (large). turn off light with code scanner after it is fixed.

Sep 01, 2009 | 2001 Dodge Caravan

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01 sonata gls v6...code po455, po442. what are these and how can I pass emissions test in arizona


If you have an EVAP leak, you will get the following codes:

1. P0442 evap emission control system leak (small).
2. P0455 evap emission control system leak (large).

If these codes come up, you need to trace the leak. The most common place for the systems to leak besides the gas cap is at the service port under the hood, the hoses at the purge solenoid, and the hoses around the fuel tank. Check all your EVAP hoses from under the hood , all the way back to the gas tank. You can repair a split hose easily. Buy some 14.5mm EVAP hose at the auto parts store. Just cut the split or cracked section out and attach the new hose.

I can only say that u must fix the code issue and light to pass state emission test, if u reset the light they will know, the system will tell the tester that the system is not ready, this will cause a fail.

Mar 16, 2009 | 2001 Hyundai Sonata

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PO422 AND PO455 CODE KEEP COMINGN UP ON CODE READER


best bet would be to have it smoke tested. about a half hour labor at most shops

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hi !the three codes po353,351 and355 refer to the ignition coil po455 refers to evap emission control leak [LARGE} HOPE THIS HELPS

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