hankthetank

Looking online today for a new 02 sensor. Came across 'Herko" brand...anybody have experience with this brand? Also, Delphi and Denso sensors if any one has any input on those as well that would be cool. Pretty sure mine hasn't been changed its whole life thus far.

Thanks for your time.

Gee oh Dee

Pretty sure I got a Bosch...iirc Bosch is OEM for Renix...

hankthetank

yeah. i guess i'm just hesitant to pay for one 'cause i hear a lot of 'bosch bashing' on here...how old is your sensor?

tjwalker

I wouldn't be hesitant to use a Bosch on an 87-90. They were the OEM supplier so you would be getting the exact same sensor.

But I recommend NTK on 91-01.

elevol92

I sell denso, never had a problem with them, just make sure its oe and not universal

Gee oh Dee

Mine? About a year old...maybe more...I don't exactly remember. Ibwas driving ng around for several months with it snapped in half and dangling down by the front diff.

He speaketh and therefore it shall be law!

robinz

Just did mine last week with a Walker. Exact match. Did a basic DIY YouTube video as well;

http://youtu.be/TExI8YnNWzs

car5car

I install 15122 Bosch sensor on all cars, it is about $20. I cut wires and use old connector.
I even installed it on 01 Saturn, which had 2 wire sensor. you just need to know which wires to use.
research O2 sensor wire colors

5-90

Bosch or ACDelco preferred (Bosch atop the list - they invented the thing!) and NGK or Beck/Arnley would be used if neither of those is available (IIRC, ACD is reboxed/OEM Bosch, and B/A is NGK anyhow.)

Nota Bene - the RENIX HEGO sensor differs in operation from most other HEGO sensors used, it is a variable resistance used to divide a reference voltage instead of an "air battery" used to generate a voltage signal. Ergo, most other HEGO sensors will not work with RENIX. I don't think anything will be blown - you'll just be stuck in rich trim from never getting out of open loop, and your fuel economy will suck.

Also, I don't like using "universal" HEGO sensors, as they require cutting the OEM connector off of the old sensor and reusing it. Given the operating environment, that connector should be renewed anyhow - and every time you add a connection in an electrical circuit, you add another potential point of failure.

hankthetank

ok. Thanks everyone for the input! i'll try the bosch (i won't try to reinvent the wheel this time). it is the cheapest locally @ $57 + tax vs. $94 for the denso.

cheers

DFlintstone

Just curious...Hows your idle? Also, you might want to check the heater power, guess you know that though....

To make it easy, I had my left front hanging with the wheel off, came from the front and chopped the wires so a 7/8 box would fit.

hankthetank

Idles funny after warm up (high then low then high...) bad mileage, smells pretty rich, hesitates off idle... Cleaned my iac, map hose is good...

i've got o2 sensor sockets. they work ok, although on some tougher ones, it seems they spread the socket pretty easy (rounded off one on a nissan once grrr)

DFlintstone

Hey, Bingo! That's what i was hoping to hear. I don't really get that cycle. Maybe being rich it loads up until the idle drops off enough for the puter' to open the IAC and hence the little surge. Just a guess. Then being back on the correct mix with the new 02 sensor it will smooth out for you. (also I hope). Another pleasant surprise for me was my heat coming on hot about twice as fast.
Now I need to sell my (8), 703's, and pick up some 4 hole 18.6 #(+--) injectors so I'm not running so rich in default/open loop. (taking longer to warm up to closed loop)

hankthetank

ya after my factory injectors popped, i put in the ford yellows (19 lbs), i thought i would see a major difference, but it was very minimal. And btw, when my idle goes up, it takes a REALLY long time for it to come down on its own...I 'make' it come down by stabbin the brake and letting out the clutch ever so slightly till the rpms drop to about 300-500 then let off and it usually stays. Its not a 'hunting' type idle, it just wants to rev higher when things are pretty hot under there...takes a long time to heat up though too...hmmm

cruiser54

I don't think the O2 sensor is causing that.