Help Hole in Y pipe causing P0420 code?
07-30-2017, 07:09 PM
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Hole in Y pipe causing P0420 code?
My 09 G37s coupe threw a check engine light today. I had the code read at autozone and it came back as a P0420. I found a hole in the steel mesh part of the Y pipe. Could this cause the P0420 code and would buying a Stillen Y pipe correct my issue?
https://www.z1motorsports.com/exhaus...pe-p-8325.html
I was looking at the Stillen Y pipe because it doesn't have the mesh sections in it. Is this a good option or does the Y pipe need the flexibility of the mesh?
https://www.z1motorsports.com/exhaus...pe-p-8325.html
I was looking at the Stillen Y pipe because it doesn't have the mesh sections in it. Is this a good option or does the Y pipe need the flexibility of the mesh?
07-30-2017, 11:25 PM
#2
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Originally Posted by Bmxr215
My 09 G37s coupe threw a check engine light today. I had the code read at autozone and it came back as a P0420. I found a hole in the steel mesh part of the Y pipe. Could this cause the P0420 code and would buying a Stillen Y pipe correct my issue?
https://www.z1motorsports.com/exhaus...pe-p-8325.html
I was looking at the Stillen Y pipe because it doesn't have the mesh sections in it. Is this a good option or does the Y pipe need the flexibility of the mesh?
https://www.z1motorsports.com/exhaus...pe-p-8325.html
I was looking at the Stillen Y pipe because it doesn't have the mesh sections in it. Is this a good option or does the Y pipe need the flexibility of the mesh?
07-31-2017, 07:03 AM
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My Y pipe is are nowhere near as bad as yours. I could feel air coming out of it though, so maybe it's just a small but deep cut. I'll look at the Y pipe again and check my vaccum and pcv lines today and keep you guys updated. Thanks for the help.
08-01-2017, 07:47 PM
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All vaccum lines and pcv lines look good. No cracks or holes that I can find. All lines feel soft and flexible. I guess it's time for diagnostics.
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08-27-2017, 02:13 AM
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I replaced my cats with berk hfc's and found something unbelievable...
The previous owner gutted the passenger side converter, and left the driver side converter OEM.
The code seems to be cleared now. The berk hfc's paired with the motordyne xyz resonated Y pipe have a great, clean sound with no rasp. Very happy with the results.
The previous owner gutted the passenger side converter, and left the driver side converter OEM.
The code seems to be cleared now. The berk hfc's paired with the motordyne xyz resonated Y pipe have a great, clean sound with no rasp. Very happy with the results.
