P0420 from my Berk Metallic HFCs
#41
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Im in the SAME freaking boat as you Solo. I put on my Berk Metallic HFC's about a year ago. NEVER had an issue. Ran great, Nismo has 4k miles on it or so then the Nismo just started throwing codes about a month ago at random. I finally got ahold of a ODBII reader this morning and as sure as the night is dark, P0420.
Only diff is my car isnt tuned yet. One of the things i been too broke to do yet.
Ill try the seafoam and see what happens. I been running on BP 93 since i got the car, since the BP station is right around the block form my house.
Only diff is my car isnt tuned yet. One of the things i been too broke to do yet.
Ill try the seafoam and see what happens. I been running on BP 93 since i got the car, since the BP station is right around the block form my house.
#42
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Update! I just got done driving 110 miles on this tank with Sea-Foam in the tank and back to Shell V-Power Gas. The light did not come on, and the car actually ran better! It came on last time after 20 miles or so. So it was either the Chevron gas, or the car needed some fuel cleaner ran through it to keep it from throwing the light on again. I will keep you guys posted.
#47
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have you tried anything to get rid of it?
i have an 07 g35 sedan, and after the first 5k-ish miles of CEL free driving, the light came on out of nowhere. i reset it and it came back about 200 miles later. i called Berk and theyre sending me the stainless steel wool to wrap my sensors. hopefully that works..
i have an 07 g35 sedan, and after the first 5k-ish miles of CEL free driving, the light came on out of nowhere. i reset it and it came back about 200 miles later. i called Berk and theyre sending me the stainless steel wool to wrap my sensors. hopefully that works..
#51
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my car has 27,000 miles on it, i really don't think seafoam is necessary. plus, it would only be a temporary fix. the way Berk explained it, i think the stainless steel wool SHOULD work. they said it'll raise the temperature of the sensor by about 300 degrees fahrenheit. i know theres nothing wrong with my exhaust system or my engine, the car is just not used to that much airflow going through the converters. i'll give the SS wool a shot, and see how that goes. if that doesn't work, i'll call Berk again and see what they say after that. if they don't give me another method to try, then i guess i'll just sell them? i dunno
#52
My car only had 14,800 miles on it, and it was obviously necessary. They tell you to run the stuff every oil change. The wool will help, but you drove many miles before it went off. So your car became less efficient. If it worked for me it will work for you. It won't hurt for you to try before you put the wool in there. So go put seafoam, fill up, and reset your light afterwards.
#53
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so i get in my car this morning, and my CEL is gone. =) i have no idea how or why that happened, i didn't reset it or anything, i did nothing to the car, and i know its extremely rare for CEL lights to just go out by themselves, but hey i'm not complaining. Berk is sending me the SS wool, but its taking a while to get here. regardless, when it gets here i'm still gonna put it in, just to help avoid this again, but it just goes to show just how sensitive our ECU's are. lets hope it doesn't come back on..
#55
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Okay, so my car now finally showed a code after 4k of miles. Can anyone tell me how to resolve this so it doesn't come back? I reset the ECU with my Cipher system. So it has been reset.
P0420 Catalyst System Efficiency Below Threshold Bank 1
I have the latest ones from Berk.
P0420 Catalyst System Efficiency Below Threshold Bank 1
I have the latest ones from Berk.
Last edited by BADASSTT; 04-08-2009 at 08:57 AM.
#60
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Well i cleared my code last week and threw in some top shelf Shell Fuel Inj cleaner the day after during a fill up. So far i put on about 350 miles and no SES light. And i've done everything from driving like a granny to driving like a mad man. I dunno.
But having said that i'll jinx myself and it will go on tomorrow morning on the way to work.
But having said that i'll jinx myself and it will go on tomorrow morning on the way to work.