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2001 MPV OBD code P0455

  #1  
Old 09-04-2007, 09:21 AM
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Join Date: Sep 2007
Posts: 2
Default 2001 MPV OBD code P0455

Need some help. Engine light is on and I have the following codes.
1 code P0455 MIL Off Monitors 1 Inc Catalyst .

I have a 2001 MPV

Any help or insight on how to resovle this will be appreciated.


Thanks
 
  #2  
Old 09-04-2007, 08:16 PM
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Join Date: Aug 2007
Posts: 1,324
Default RE: 2001 MPV OBD code P0455

I believe P0455 is an evap leak code, large leak i think. Could be the gas cap isnt sealing well but that normally sets a small leak code so look for loose or cracked vacuum lines under the hood. Could be leaking anywhere from the gas tank to the engine compartment. Some shops have smokers to connect at the gas filler pipe. It pumps smoke into the system then you just look for the leak in the form of smoke.
 
  #3  
Old 09-05-2007, 07:36 AM
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Default RE: 2001 MPV OBD code P0455

Thanks, I'll have to check the hoses this weekend.

Any idea of what will cauese the Catalyst Monitor to be incomplete?

Thanks again.
 
  #4  
Old 09-05-2007, 10:18 AM
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Join Date: Aug 2007
Posts: 1,324
Default RE: 2001 MPV OBD code P0455

Catilyst refers to the converter efficiency. Basicly there is an o2 sensor before and after the converter. The only thing the o2 behind the converter does is check the efficiency of the converter by comparing the before and after readings. Usually if you get that code it means you need a new converter.
 
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