Hey all, I recently developed a loud gurgling/rattling noise with low speed deceleration coming from the driver side. Soon after, I am now throwing both downstream O2 codes from that side P0157 and P0158.

I self installed Ripp headers and supercharger about 2 years ago on my 2011 manual JKU.

On quick inspection, I see nothing wrong with any wiring coming from the O2 sensors.

The noise (like a bunch of metal bouncing around in a can), and the codes have to be related, I would assume.

Could the catalytic converter on the driver side be shot?

Thanks

 

That does sound like the cat may have internal failure. Maybe the RIPP rep will chime in to see if this has been seen before.

Would like to know what the diagnosis is.

R/
Will

 

I sent a PM to RIPPMODS to let them know about this thread... see what they have to say...

 

Please inspect the cats by removing the O2 sensors and using a Bore/inspection scope. Check from both the top and bottom through the O2 sensor bungs.