Engine Light in 1.4 K11 2000

[Acoris]

Hi Again,

My engine light is on, what my be the reason? I have attached OBCII and below you can see the fault code and o2 sensors.

Many thanks

Serkan

 

[.Maarten]

Thats not the code. The code should start with a P.
Most likely causes are MAF or broken Lambda

 

[Acoris]

Thats not the code. The code should start with a P.
Most likely causes are MAF or broken Lambda

Hi,
Thank you for your answer. Code is p0420.
Can leak exhaust cause also this?
Also my second Lambda seems damaged outside but obdii shows voltage change

 

[Soup1]

Hi,
Thank you for your answer. Code is p0420.
Can leak exhaust cause also this?
Also my second Lambda seems damaged outside but obdii shows voltage changeView attachment 66834

Second sensor shouldn't change or change VERY slowly, if it changes your cat is probably f**ked

 

[Acoris]

Update:
There was a leak at exhaust. We fixed it with pasta and metal clamp.
Now the second sensor is stable. After that we have cleared the Fault by OBDII adaptor. It is gone since 2 days!
Lets see if it will come back

 

[richardwbb]

W

Hi Again,

My engine light is on, what my be the reason? I have attached OBCII and below you can see the fault code and o2 sensors.

Many thanksView attachment 66830View attachment 66831View attachment 66832
Serkan

What software was that, may I ask?

 

[Acoris]

W


What software was that, may I ask?

I used Torque Pro as the app and Autogenie OBDII adaptor.

 

[Acoris]

Update:
There was a leak at exhaust. We fixed it with pasta and metal clamp.
Now the second sensor is stable. After that we have cleared the Fault by OBDII adaptor. It is gone since 2 days!
Lets see if it will come back

Here is the after fix picture of sensors

 

[Acoris]

Hi Guys,
Here is the final situation:
We have changed both lambdasonnes and full exhaust.
Old owner emptied the CAT. The Cat is total empty.
Engine check light still ON.
My question is : Can I swap my ECU with any other NISSAN model? That i can find in scrapyards. Where can I find information regarding this.
Thanks in advance.

 

[.Maarten]

P0420 is a cat efficienty under threshold error. This happens because the cat is empty. And this will cause a check engine light.
You can try to fit a lambda faker in front of the 2nd lambda.

No you cannot swap another ecu in.