Post FI HFCs Install/ SES or CEL Help!!

MyKindaGuise · 12-28-2012, 07:35 AM

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?

eastwest2300 · 12-28-2012, 08:01 AM

Quote:

Originally Posted by MyKindaGuise

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?

I lifted up the front end of the car, to put the steel wool in the J-bung, and I checked the 02 sensors, I didnt see any issues with them. I didnt look at the o2 sensors on the exhaust manifold, because Im not sure where to look for that. But its looking like thats where the issue is. It just makes sense.

Sh0velMan · 12-28-2012, 08:06 AM

Quote:

Originally Posted by eastwest2300

I lifted up the front end of the car, to put the steel wool in the J-bung, and I checked the 02 sensors, I didnt see any issues with them. I didnt look at the o2 sensors on the exhaust manifold, because Im not sure where to look for that. But its looking like thats where the issue is. It just makes sense.

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?

eastwest2300 · 12-28-2012, 08:09 AM

Quote:

Originally Posted by Sh0velMan

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.

MyKindaGuise · 12-28-2012, 08:25 AM

Quote:

Originally Posted by Sh0velMan

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.

MJB · 12-28-2012, 08:29 AM

Quote:

Originally Posted by MyKindaGuise

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.

eastwest2300 · 12-28-2012, 08:35 AM

Quote:

Originally Posted by MJB

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

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, 08:38 AM

Quote:

Originally Posted by Sh0velMan

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.

12-28-2012, 07:35 AM	#1 (permalink)
MyKindaGuise A True Z Fanatic Join Date: Feb 2012 Location: Pennsylvania Posts: 2,029 Drives: 11' 370z Sprt M6 Rep Power: 21	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? __________________ \|445whp398tq\| \|BW S259 Turbo\|3" Downpipe\Exhaust\|ID1000\|AeroMotive\|Tial\|EcuTek\|BC BR\|S0-4\|MaffFab\| MKGs-Single-Turbo Last edited by MyKindaGuise; 12-28-2012 at 07:53 AM.

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