P0420 dtc off Grande Punto 1,4cc 5SF8

[sasy90]

Hi to all,

i need to P0420 off on this Grande Punto 1,4cc natural power with 5SF8


Only dtc off... the car run fine , but check mil light on.... i want to mil off with P0420 off..

thanks to all in advance...


366537

[lucim12]

don't think it exists solution for marelli petrol ecus... if anyone have im interested too

[sasy90]

I think is impossible... someone say how to do...helppp meee

[sasy90]

Help me pleaseeee

[mihaiservice]

Hi
Such dtc P0420 are realed to lambda O2 sensor,car are in limp mode after 50km/h ?

[CustomCars]

Yes related to lambda. I did today one of this ecu.
disable o2 hard cake, we don't have idea... but DTC possible to remove.

And that's ECU seems dont have limp for lambda.

[sasy90]

The car run right... no problem... only sometimes mil on e P0420 ... i need to dtc off... help me pleasee

[sasy90]

Also P1420 if possibile ( kat was already removed but sometimes appeared P0420 and P1420) . If possibile , P0420 and P1420 dtc off please?

[CustomCars]

Possible, but all of us needed take a rest from working... this job is MIND BLOWING many times.
It's not to simple and fast as you think !

And like you say car drive so it was not so urgent. But sure can be done.

[sasy90]

Yes is urgent for me.... i need to dtc off... if you won't help me , i attend someone that can help me for HELP .... not only for money....

[CustomCars]

I only say don't expect harder work after all working day, that's all.

[sasy90]

Ok i attend your help... Can you help me tomorrow?

[sasy90]

Someone can help me please??

[sasy90]

Noone??? Help pleaseee

[lucim12]

o2 off - not possible
for dtc off yes - have done one psa marrelli petrol ecu years go with same problem
can try do it for your car if you still need it

[sasy90]

Yes i need only dtc off P0420 and P1420.... Help me please....

[lucim12]

here try this

[luchettino]

Hello, did you find a solution ?

[pike]

Solution found. It is necessary to disable control of the second lambda.

[sa80libero]

pass please, I have the same problem