Errors From The Exhaust

[alex_55]

After I run hard the car I receive this errors :

-P0430

-P0420

Should I be worried about this ?

It seems that the tuner can't bypass the cats... how do you guys run?

Does anybody know if there is any difference between the european ecu and US one?

Is here someone from EU that runs w/o cats?

It seems that they cannot "bypass" the O2 sensors from the ecu...

Any help please!?

Thanks!

[Loren]

P0420 TWC conversion, bank 1 - above limit

P0430 TWC Conversion, Bank 2 - Above Limit

Possible fault cause:

- Oxygen sensor ahead of and after TWC exchanged

- Valve lift fault

- Aged oxygen sensor after TWC

- TWC faulty

If the CEL is flashing the car should not be run.

[alex_55]

P0420 TWC conversion, bank 1 - above limit

P0430 TWC Conversion, Bank 2 - Above Limit

Possible fault cause:

- Oxygen sensor ahead of and after TWC exchanged

- Valve lift fault

- Aged oxygen sensor after TWC

- TWC faulty

If the CEL is flashing the car should not be run.

Hi Loren, the errors are form the cats, I am running w/o cats and the who tuned my car seems that cannot bypass the cats :(

[Loren]

Do you have any O2 sensors? If not you are going to always get these faults.

[alex_55]

Do you have any O2 sensors? If not you are going to always get these faults.

yes i have them. today my tuner put another file in, hope that this time everything will be ok but a strange thing happen, after they install the file my fuel gauge was dead it was showing

that i don't have fuel!

this is the second time that it happens after they install a new file, first time the gauge went up and showing ok after i put gas.

anybody can explain why?

thanks!

[Loren]

Any time you change the program of the DME you are resetting everything.

You could try the RoW program for Germany - I do not think it looks at the after cat sensors in that profile.

[alex_55]

Thank you Loren, like always a fine gentleman :)