EML after exhaust Y piece fit anyone had this??

[BenM]

Hi guy's

 

As per the title a couple weeks back i had a custom Y piece manufactured and fitted at Infinity exhausts in Bristol.

 

I went for a custom Y piece as the flanges on my cat's didn't look to be in the best condition following years under the car and thousands of heat cycles so to save the cat's the flanges were cut off and the pipes welded directly.

 

All was well until a few days later the EML came on. I've now got my hands on a basic OBD2 reader and the codes it's flashed up are:

 

P1147

P1167

 

Both oxygen sensor codes.

 

So my question to you wise bunch is have you ever seen o2 sensor codes coming up following the fitment of a Y piece?

 

I'm going to take it back to look under the car and see if anything was damaged/dislodged on the sensors and i'm going to clear the code to see if it comes back but any experience anyone has with this would be useful

 

Ta