Zsaltzman

Getting my HFCs in the mail today. Does anyone have a link to a forum post for the installation? I just want to make sure i grab all the tools ill need before i get home. Also if anyone has done this at home, did you have a second person helping, or is it necessary?

Mr_Mer

iTrader: (2)

Plenty of youtube videos on how to do this. Have a good amount of ratchet extensions and a good breaker bar. I cannot stress this enough: REMOVE THE O2 SENSORS FIRST!!!!!! Get couple cans of PB Blaster, soak all bolts overnight.

ChinkyChoy

iTrader: (2)

Believe Brad has one:


https://www.myg37.com/forums/g37-sed...y-be-atch.html


For test pipes but same thing

el_donks

When you install HFC's, be sure to use either anti-foulers or stuff a 1"x1" square of steel wool in the o2 ports (before you put the sensors back in). Also, make sure you do not over-torque anything (especially to the manifold) and that the gaskets are lined up/sealed properly.

I had a technician friend install my converters a few months ago. They were fine for a while then threw a code. Cleared the code, it came back. Had the car tuned, thinking the ECU would then adapt. Code came back a week after. We replaced the o2 sensor itself, it was fine for a week or two, and now the code is back. Either the converter is defective or my technician goofed something. Hopefully, he'll have a proper/full diagnostic by the end of today. I need to pass inspection this month

Point is, take as many precautions as possible to hopefully avoid any check engine codes.

Tachyon

iTrader: (2)

What year do you have? I've heard of this on the 2013s

Rybitron

All of this is right. Like you may have heard, there is at least 1 bolt that can be extremely difficult to get off. When I had mine done, 2 of my 02 sensors went bad due to the air gun vibrations.

IracknBack

iTrader: (4)

the shop I'm considering doing mine at said you can get a tune/reflash that is an "o2" delete and won't throw codes if the sensors are removed so they just plug the holes and call it a day.

el_donks

I actually have an '07 G35x but various internet threads can describe similar issues, on any year model. Had I known this would happen, I would've just ripped the rattling heat shields off of my stock converters and called it a day. Ah, the pains of pursuing more power.

el_donks

I'm not even so sure I can do that in NY state, with our emissions laws now following CA. Do you plan on going UpRev or ECUTek?

ZahyMatar

iTrader: (4)

The shop installing your HFC shouldn't have a problem installing your O2 sensors. If they mess them up, make them pay. It's not a cheap part. I paid $100 for HFC installation and everything works fine, nearly 5,000 miles later and still no codes. (Fingers crossed)


Love my Berks!

el_donks

Wellll... making them pay is an issue. I actually work at a dealership and hired a technician off of the clock, so the garage itself is not accountable. He is suggesting three possible fixes, which is irritating, since he wouldn't take the time to diagnose the actual source of the issue. His diagnosis was literally what the service manual suggests

shawnb1989