All right, let me start by saying I ran high octane race fuel in my cobalt, leaded fuel actually, and now I have a bunk oxygen sensor. Is anybody using an aftermarket oxygen sensor, I've been unsuccessful trying to track down someone who makes and aftermarket and the stocker at my local chevy dealer is $148.00!

I checked the Denso website and their information is only current until 2004 which made me curious but nonetheless I still need a sensor. Let me know what you guys are running, what works and what doesn't.

(Leave wideband out of this topic I'm not considering that as an option)

 

Send a PM to ENUFPWR, he runs 112 octane leaded all the time and replaces 02 sensors all the time as well.

 

Why are you not considering a wideband? You can get an LC-1 on ebay for 180.

For the extra $30 I'd take the extra tuning ability.

 

$148 isn't bad for an O2 but Im used to being bent over on them for BMW's.

Is it a 3 wire or 4 wire sensor? Over in BMW land some of us would go buy the Bosch O2's for the Mustang 5.0's and splice them on to our wire connectors. Those mustang O2's were like $40. The actual sensor was the same, just the wire connector on the end was different. Might be able to do the something similar like that here. Or you can search the net and get lucky with an online parts house. Going wideband makes total sense too.

 

yup did the same thing too.... time to order a new o2 sensor.... oh well damn shitty o2 sensors can't take alittle lead... only ran a mix of 4 gals of c12 with the rest 93 octane been thowing codes all week since... ****

 

I wonder if there is a... I guess it would be lead resistant O2 sensor?

 

Autozone had an O2 sensor for my cavy for like $68, so the price for the cobalt shouldn't be too much different than that.

Sidenote - What is the benefit/point of running leaded fuel?

 

leaded fuel = insanly high octane rating = a **** load a timing = lots of power

 

Autozone does have a remedy, but it's also 129.99. I can't walk into autozone and just pick it up either I have to wait for it to be shipped and I'm not even sure if they are producing it yet or if it's a "future product"

The reason I don't want to go wideband is because my friend is going to buy this car and he's going to leave it stock, I was going to put stage 3 and nitrous with a 8k tune on it but he said he wanted to buy it and take over to loan so I'm going to part with it.

I just want to get a stock solution in the car, get rid of all the codes so he has a solid car to go to college with.

As far as doing the solution such as buying a cheaper oxygen sensor and splicing them together thats a great idea and a little soldering and shrink wrap never scared me, so I'm going to look into that further, I'll probably go to my chevy dealer and get a good picture of the o2 sensor and see if I can compare online -- unless of course anybody has already done this and they have a friendly suggestion that they would like to lend me!!

Thanks for the help guys, and keep em coming because this could be a good future write up on o2 sensors if we keep good info in here.

 

I was browsing the net today before work and I found this website...

http://replacement.car-stuff.com/par...howdc=true#top

By the looks of it the Cobalt SS Supercharged sensors have a four wire connection, the one on the top looks identical to the one at the Chevy dealership I was shown when I asked to see it so I'm guessing that my oem replacement [a little curious as to why it's almost forty dollars cheaper here but oh well I'll save the money]

Back to what EricDFW said about splicing in a mustang o2 sensor or something of the like what other vehicles utilize the same physical o2 sensor as the cobalt ss but have a different harness, I'd be more then willing to grab one cheaper and try it out!