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Nissan 370Z Forum (http://www.the370z.com/)
-   Intake/Exhaust (http://www.the370z.com/intake-exhaust/)
-   -   Post FI HFCs Install/ SES or CEL Help!! (http://www.the370z.com/intake-exhaust/64916-post-fi-hfcs-install-ses-cel-help.html)

eastwest2300 12-28-2012 08:09 AM
Quote:
Originally Posted by Sh0velMan (Post 2080967)
You use an impact on the demon bolt? Anything at all other than a ratchet/wrench?

Did you beat on the ratchet/wrench with a hammer?
Dude, we did EVERYTHING humanly possible to get that fricken bolt off.

eastwest2300 12-28-2012 08:09 AM
Im not even kidding. Im dead serious bro.

Sh0velMan 12-28-2012 08:22 AM
Quote:
Originally Posted by eastwest2300 (Post 2080977)
Im not even kidding. Im dead serious bro.
Then that sensor is dead.

They're really quite fragile.

MyKindaGuise 12-28-2012 08:25 AM
Quote:
Originally Posted by Sh0velMan (Post 2080967)
You use an impact on the demon bolt? Anything at all other than a ratchet/wrench?

Did you beat on the ratchet/wrench with a hammer?
We pretty much used every possible combination you can think of. By far the worst demon bolt we have ever dealt with.

MyKindaGuise 12-28-2012 08:27 AM
Quote:
Originally Posted by Sh0velMan (Post 2081000)
Then that sensor is dead.

They're really quite fragile.
That still doesnt explain how its the manifold O2. Ive never broken an o2 before either.

EW ill you send pics of where this o2 is at then.

MJB 12-28-2012 08:29 AM
Quote:
Originally Posted by MyKindaGuise (Post 2080920)
I dont see how it couldve been damaged on install. That error code relates to the sensor on the manifolds not the cats. That is a precat o2 code. Those were not touched at all during install of the hfc's. Did you make sure atleast that sensors are plugged in and are not loose in anyway?
Just the vibration alone from impact wrench can damage those sensors, even the ones on the manifolds. I've seen it happen with the 350z guys. Hopefully that's not the case with the OP, but it's sorts sounding like that's the case.

Sh0velMan 12-28-2012 08:31 AM
Quote:
Originally Posted by MyKindaGuise (Post 2081015)
That still doesnt explain how its the manifold O2. Ive never broken an o2 before either.

EW ill you send pics of where this o2 is at then.
The demon bolt connects the cat to the Manifold.. Any vibration put into that bolt is going to rattle everything in the system, but especially the manifold itself. The O2 sensor we're talking about is like 1.5-2 inches tops from that bolt...

It's dead, Jim.

eastwest2300 12-28-2012 08:34 AM
Quote:
Originally Posted by MyKindaGuise (Post 2081015)
That still doesnt explain how its the manifold O2. Ive never broken an o2 before either.

EW ill you send pics of where this o2 is at then.
thank you soo much bro, please.. please do that.

Sh0velMan 12-28-2012 08:34 AM
1 Attachment(s)
Quote:
Originally Posted by MyKindaGuise (Post 2081015)
That still doesnt explain how its the manifold O2. Ive never broken an o2 before either.

EW ill you send pics of where this o2 is at then.
attached.

eastwest2300 12-28-2012 08:35 AM
Quote:
Originally Posted by MJB (Post 2081025)
Just the vibration alone from impact wrench can damage those sensors, even the ones on the manifolds. I've seen it happen with the 350z guys. Hopefully that's not the case with the OP, but it's sorts sounding like that's the case.
Im leaning that way too, I've already started looking for replacements. I found a couple of them (used) on eBay. What do you guys think? good idea or bad getting them off eBay?

Sh0velMan 12-28-2012 08:36 AM
Quote:
Originally Posted by eastwest2300 (Post 2081040)
Im leaning that way too, I've already started looking for replacements. I found a couple of them (used) on eBay. What do you guys think? good idea or bad getting them off eBay?
Personally I'd get them from the dealer only.

Just me, tho.

They're expensive as ****, too. Had to buy a couple due to a few 'issues' after the header install..grumble grumble..

eastwest2300 12-28-2012 08:37 AM
Quote:
Originally Posted by Sh0velMan (Post 2081037)
attached.
Thank you soo much man.

eastwest2300 12-28-2012 08:38 AM
Quote:
Originally Posted by Sh0velMan (Post 2081045)
Personally I'd get them from the dealer only.

Just me, tho.

They're expensive as ****, too. Had to buy a couple due to a few 'issues' after the header install..grumble grumble..
I found them new for $125 on eBay. They are pricey as sh!t.

eastwest2300 12-28-2012 08:39 AM
Shovelman, will I be able to see it from looking over the engine? do you think?

Sh0velMan 12-28-2012 08:40 AM
Quote:
Originally Posted by eastwest2300 (Post 2081051)
Shovelman, will I be able to see it from looking over the engine? do you think?
Take off the brace, engine cover, and maybe intake tubes, and yeah you should be able to get to it from the top.

Edit: Oh and it'll be stuck on there pretty good. Invest in a high quality O2 socket and some anti-seize for the new one.


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