IDK what, if any, experience you have with the Gen 2 LT1 platform but your advice is pure BS regarding using any junkyard 02 sensor in a LT1 because they are $3 or free. Free **** is still ****

02 sensors are a wear item so using any junkyard one even if it is the correct type would not be advised.

OP, just stick with the AC Delco or Denso ones. The Denso appear to be $8 less than the AC Delcos on rockauto.com

 

I wonder.....how much bud does one need to smoke to come up with this stuff? I think you missed the part where you put a turbo on it and was able to throw out the PCM, pistons, and crankshaft because it made the engine sooooo much more efficient.

 

Many people build their entire cars with junkyard parts. I don't know how that classifies as BS. Half my car is junkyard parts, which are OEM quality. When you think about it, OEM is often higher quality than many aftermarket parts. Try to focus on the objective here, the main goal. The main goal is to tune the engine with FI. You can't do that with a narrowband. So why do you even want one? Telling people on the internet that it's BS to use junkyard parts because they are free, and that they need high quality sensor for a function that we don't even want? Even the computer doesn't want to be at 14.7:1 lol

 

Just because you lack the ability to measure something, you should not discount it as important. Engineers stack power plants on top of power plants to save some few percentage of efficiency, trying to achieve or beat the impossible perfection of 'carnot', and believe me they are measuring it precisely. I personally can't afford to waste money on fuel; so economy was the centerpiece of my build. Absolutely every scrap of rotating energy must be conserved if you wish to achieve max economy and every single molecule of fuel needs to be accounted for by mass, which we can do by weighing it in real time and comparing what the engine claims to use with what it actually uses, thus measuring efficiency and setting a standard best to always try to beat in our exact current vehicle config. Thus changing our build over time to exceed previous bests, evolving through data optimization.

If you don't know where you are, If you don't know where you stand, you can't measure whether movement or energy expenditure resulted with any progress. It is possible to set an engine up to push air and fuel without returning any energy or moving the car. We can time one poorly and have it melt. By measuring this far extreme we must realize that tuning generally puts the engine somewhere between this point, and some other point, meaning we are never truly "perfect" on one point or the other, but in between. So measuring where you are between those two points is what we are trying to do with all this equipment, to run the engine more efficiently to save fuel, if we care about fuel economy.

And this is the part that kills me. These sensors are all about economy. Holding 14.7 closed loop is an economy feature, a corrective addition. Stand-alone tuning such as Haltech, Motec, AEM, Big Stuff, Commander 950, Power FC, etc... rarely involves a narrowband or closed loop operation because saving fuel is not any concern what-so-ever when your trying to make 800kW. So it is laughable to me when somebody scoffs efficiency, dismisses the prospect of measuring fuel and air and trying to achieve and understand how to make the engine output max work for minimal fuel input. And then complains on the internet about how we all need narrowband units to help save fuel for better economy. And on top of that, a narrowband is terrible because it puts you at 14.7, which isn't the best place to be. Even many OEM ecu contain "lean cruise algorithms" which can be turned on by end-user for additional fuel saving over narrowband's useless/unwanted original target. The list of reasons for you to just accept the tail-chasing in progress just goes on and on... Need to stop fighting yourself... just ask for clarification. Sometimes I have the time I can explain something down to the DNA in the cell. Would you like to discuss how the mood can be adjusted by reading words online? Because it is possible to excite or anger somebody with words... and I get the feeling tech talk without emotion is screwing alot of people up who can't dissociate the internet-words with actual life's important ideas, such as nutrition. In other words, don't neglect yourself, your body, over something on the internet, and keep in mind your mood is reflected in such things as diet, sleep, learning, etc...

 

If you want AC Delco, check out shbox.com for where to buy OEM parts at reasonable prices.

 

One thing I will say is this board has never been short of mental patients. Once one leaves another one appears. Don't change for nobody!

 

Hi Eric, as an EE I bet you own MORE than one scope.
I have several Scopes, OLD SLOW scopes with a CRT.
These are GREAT in the automotive field AND cost little today.
I ALSO have an EIGHT Channel Pico Scope.

MY data is based on EGO sensor measurement by a Scope finding that EACH pulse can be seen by observing that Wave Form.

I FOUND a wave /\ AND the ability to measure voltage change with respect to Lambda at EACH firing of the engine cylinders. (1984)

This allowed me to WIN a SEMA product of the Year award in 1994 with the FIRST 50 state LEGAL EFI kit. ( EO# D-346)

I have done so for MORE than 35 years.
When you trust NIST, you trust ME.

NOW, we see many here who "cut" a Spark Plug to allow a quality read.

MY GUESS is that I am the ONLY one here that has "cut" a EGO sensor in the same fashion.

Lance Nist

 

Without a doubt. I swear he's cardo0 jr. Just without the name calling.

I've got a couple of scopes, but am saving to get a Pico. The recording ability of the software is impressive.

 

you can't bottle it, but its fresh off the tap. Slice me off some of that O2 sandwhich plox, before it gets stale, kthx

 

 

There's a lot of information way off what the OP was asking.

Everything I have seen is that Denso is the supplier for AC Delco sensors. I just put some in and am having issues with slow switching, but from what I understand that may be because I used front sensors, not the rear Corvette sensors that apparently switch faster and have better heaters in them.

I have had bad experiences with Bosch sensors on the Ford side. Brand new they would not read anything at all and I was not able to tune until I bought OEM sensors. But my bad experience is just one, I know there are plenty that run Bosch sensors with no issues. Odd how that works out.

Aftermarket sensor companies can pass their QC with a much higher failure rate though.

 

Hi Tew, Yes I agree, this thread is ABOUT the Four Wire EGO sensor, my invention for NTK. (1984-1986)
The OP's 1996 Z-28 DOES NOT USE a UEGO sensor as fitted by GM !

I know little about Denso EGO sensors but AGREE with YOUR report.
I DO KNOW that NTK offers a Hot Start EGO sensor, different from their standard item.
This is the sensor I sell most often, the NTK Hot Start.
I should state the EGO sensor I sell most often has BOTH the OZA & Ford part number imprinted.

MANY here believe a EGO/UEGO sensor is MAGIC, I do not.

My observation is that the EGO sensor is just another type of SparkPlug, manufactured by those companies that ALSO make "plugs".
The EGO sensor ACTS as a sparkplug AND can be fouled. (No voltage report)
The EGO sensor can be cleaned, a fouled sensor, BY a propane torch's hot gas.
The EGO sensor reports a high voltage with Rich Mixtures OR when the mixture is VERY RICH, the sensor can be fouled with NO Voltage reported.
The now fouled sensor's report is that of a LEAN mixture causing the EMS system to ORDER MORE FUEL !

Lance