Dual Widebands Stock Locations

I appreciate the literature and have seen it before, but I really wonder if they are either being overly cautious or are basing their recommendations on obsolete information/tech.

Maybe the first widebands had big troubles with them, but with OEMs using them in stock style locations it seems pretty safe to me. I know that narrowbands are a bit of a different tech, but you'd think if the O2 housings got hot enough to kill a wideband it would kill a narrowband. Also, the stock o2's are right next to catalytic convertor material, so surely that saw a lot higher temps than we see with open o2s.

It might make sense to use the cooler things, but I am not sure there's enough room, up front especially.

I'm not confident the open o2 housings hit 1300 degrees, seem's like at that point your gaskets would be on fire and your fans, and your firewall, etc. Maybe erron runs that type of temp :)

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Originally Posted by UTRacerX9

Hmm. I seem to recall Trevor or Phalse had tried it and burned up their sensors. I know the AEM states that it's supposed to be 24" or 36" away from the turbo, can't remember which.

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I think I recall something similar, he was running them really close to the turbo IIRC. Could have been killed by the heat, maybe leaded fuel, over rich, not sure.

It's worth the $110 for the sensors to try to me. If I kill them oh well, but would suck to setup the wiring neatly and careful and have it not work out. Was hoping more folks had tried this, I guess not a lot of people don't use the narrowbands.

Gas is gas so I'm figuring the rotary vs piston difference wouldn't skew things much.

http://www.rx7club.com/race-car-tech...o-egts-358196/

I moved mine up into the stock 2nd gen locations due to faster response times (there is an issue with lag in the downpipes).

Will be keeping an eye on things but from what I've seen the Bosch is a very robust sensor.

Running closed loop you need the fastest response time you can get.

I have both of mine in the stock location with no problems. If you are worried about it you can buy your sensors from advance auto and warranty them out for free, I think they carry a one year warranty

I ran an Innovative WB + NB02 in the stock rear bung. Worked perfectly except for one big issue. I had to re calibrate it often. Went back to a stock NB and moved the WB to the downpipe.

That said, if you are not using your NB a WB should work there, at least I didn't have issues. But since I use the NB, every time the calibration went off my cars tune would be off.

-John

https://www.google.co.uk/search?q=oe...ePEdzIsubkM%3A

Click link above, the Nissan GTR-35 uses wideband sensors just after the turbos (where our narrowbands normally sit). Not common to have a failure and this is an OEM factory application.

I'm not worried now about running in the stock 2nd Gen locations :).

I'm interested in the results as I would mind trying it out in the near future as well.

looks like I may end up replacing both widebands as well, lsu 4.9 sensors are the new thing. The old ones are 4.2.

http://www.ecotrons.com/technology/b...su_42_sensors/

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Originally Posted by Forest Gump

looks like I may end up replacing both widebands as well, lsu 4.9 sensors are the new thing. The old ones are 4.2.

http://www.ecotrons.com/technology/b...su_42_sensors/

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Yep, good call. They should be a bit more durable but more importantly MUCH quicker acting.