Codes Pulled Again - PLZ Help Tech
 

Okay, got them pulled again last night Tech. Thanks once again for all your help.

Here is what we pulled. Also these were pulled before I replaced the plugs today:

P0455

P0488

P0432

P0422

RE: Codes Pulled Again - PLZ Help Tech
 

Here are the codes from VADIS: (no listing for P0455 & P0488)

P0422 ECM-4801 Three-way catalytic converter (TWC) efficiency Intermittent fault
P0422 ECM-4801 Three-way catalytic converter (TWC) efficiency Permanent fault
P0432 ECM-4901 Three-way catalytic converter (TWC) efficiency, bank 2 Intermittent fault
P0432 ECM-4901 Three-way catalytic converter (TWC) efficiency, bank 2 Permanent fault

and here they are from a generic list: (no listing for P0 488)

P0422 Main Catalyst Efficiency Below Threshold (Bank 1)
P0432 Main Catalyst Efficiency Below Threshold (Bank 2)
P0455 Evaporative Emission Control System Leak Detected (gross leak)

George

RE: Codes Pulled Again - PLZ Help Tech
 

Thanks for the info. That's pretty much what I got from the print out also. I am wondering what I need to do to fix them? I am guessing (haven't checked yet) that a new cat would be expensive. Should I go the hillbilly way and take them offf and try to bang all the stuff out or cut-em and run straight through? I don't think that is legal but that would not be my main concern. I just wouldn't want the car to sound loud like a 16 year old ricer Civic driver or anything. Also would this throw more codes if I ran stright through? Any and all thoughts and suggestions welcome. BTW, where in Vadis do I put in the trouble codes to get information? Thanks in advance.



EDIT:

Here's what the other two are showing from the Autozone readout.

P0448 Says: The PCM has determined that a short circuit condition exists in the electrical circuit for the vent control in the evaporative emission control system.

P0455 Says: The PCM has determined that a large leak exists in the evaporative emission control system.

RE: Codes Pulled Again - PLZ Help Tech
 

The evap valve might be bad.
Also check for a vaccum leak.

RE: Codes Pulled Again - PLZ Help Tech
 

Forgive my ignorance please:

Where is the evap valve?

Another newbie question. How do I check fora vaccumleak?

Should I check the retun lines for leaks. I am going to buy a new gas cap but that would probably just be luck if that's all it were.