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Bosch LSU 4.2 Wideband O2 Sensor

Posted: Fri Jun 10, 2011 3:06 pm
by JMather
Just looking for some direction on how to rig a Bosch LSU 4.2 Wideband O2 Sensor to a MS PNP.

Has anyone done it or could tell or show me how to install? :D

Re: Bosch LSU 4.2 Wideband O2 Sensor

Posted: Fri Jun 10, 2011 3:42 pm
by NitroDann
Haha. Youve missed heaps. Unlike narrowbands, widebands dont run on their own, they need a controller. Thats why everyone buys an lc1 or diywb off wb02.com.

The easiest way out, if you have bought one already, is to purchase the wb controller kit from jaycar for 70 dollars.

Dann

Re: Bosch LSU 4.2 Wideband O2 Sensor

Posted: Sat Jun 11, 2011 10:12 pm
by NitroDann
Why delete my post, I know him, hes a big boy. He will live, jesus i didnt make the gifs. and they are true.

Dann

Re: Bosch LSU 4.2 Wideband O2 Sensor

Posted: Sat Jun 11, 2011 11:26 pm
by PaulF
Lol, Dann, are you being nasty again?? :P :lol: A misunderstanding I'm sure. The mods probably didn't know that you know the guy.

Re: Bosch LSU 4.2 Wideband O2 Sensor

Posted: Sat Jun 11, 2011 11:45 pm
by NitroDann
It frustrates me that a few of my posts have been deleted without my knowledge or an explanation.
At least when the mods warn everyone on miata.net every 46 seconds they pm you to let you know.


Dann

Re: Bosch LSU 4.2 Wideband O2 Sensor

Posted: Mon Jun 13, 2011 4:15 pm
by JMather
I feel like I've missed out :frown:

I got one from a mate but I no know-how on how to rig it up.

Re: Bosch LSU 4.2 Wideband O2 Sensor

Posted: Tue Jun 14, 2011 12:38 am
by Steampunk
NitroDann wrote:It frustrates me that a few of my posts have been deleted without my knowledge or an explanation.
At least when the mods warn everyone on miata.net every 46 seconds they pm you to let you know.
Dann


You think the mods are trying to tell you something?
The majority of your comments (besides the ones on threads you have started) have been unconstructive to say it nicely, and your replies to the guy who asked "what is the best way to make power..." are head-shaking to say it nicely.
I mean, "... remove front and rear bumpers..." do you honestly think that was helpful? to anyone?

And when MINX asked how to preserve his wheels and your reply was "...man up"

also:

NitroDann wrote:The issue is when somebody posts to me rather than OP. Or directly contradicts a fact with an opinion. Or assumes that OP has the samemindset as the poster, If OP says for example, I just bought one, I want it faster, and someone suggests some cams, guess what that will make it faster, you dont go and say Oh no dont use cams your idle will be rough. FFS its a performance car forum not a knitting forum, man up people.

Dann


For someone who likes their facts, you sure post alot of opinions.

Just FYI, there are MANY forumites on here who are engineers, mechanics, race car drivers (not just MX-5's), editors & contributors to car magazines, and simply people who have learnt the hard way by driving many different cars over decades, who don't post replies simply because finding things out yourself is the best way to learn.

Take some time and investigate people like MX52NV, tinsfci, Matty, tbro, ORX626 are knowledgeable about.
This is a great forum, with a multidude of experience, we all do our best to keep things friendly, clean, and constructive.

Back on topic, I have a MSPNP and Innovate LC-1. I haven't made a comment yet because I usually wait for others who are more knowledgeable than I, and the OP asked about a specific product that I know little about.

Get where I'm coming from?

Re: Bosch LSU 4.2 Wideband O2 Sensor

Posted: Tue Jun 14, 2011 1:21 am
by NitroDann
Yay personal attack on someone you dont know time.

Unlike you i told him the exact correct answer in my first post in this thread. Read it again. It seems josh missed that as well.

As for my posts answering questions it seems like if i werent here often people would only get one opinion.
The best way to make power thread is a great example. I gave many examples of what is common for a reasonable price. All of them were true and i was the only person on the entire thread who said anything other than information that every noob knows.

OP can easily decide for himself if he wants windows or a heater, and he probably never considered the possibility of free performance, or realised products like MS were available and diy.
I guarantee you he already is familiar with putting a pod filter and an exhaust on a sports car.

I get many PMs from many members of this forum asking for advice or thanking me, including well known respected guys here.

Some people believe in reading the question asked and answering that question. Just because you think the 2 hp that your mania intake gives you is great wont help OP if he just sold his JZZ30 to buy his or her na6.

I am sorry that my giving blunt yet correct help offends you. Next time you scratch your rim ill tell you to contact 949 and complain or just cry in a corner, because that will fix it, rather than suggest a clear coat and dealing with it, even though that was the conclusion everyone including op came to, and I believe I was the first to suggest.

Dann

Re: Bosch LSU 4.2 Wideband O2 Sensor

Posted: Tue Jun 14, 2011 12:19 pm
by gslender
...getting back on subject, can someone explain what the wideband sensor/controler is doing, and why a kit like MS PNP still needs a seperate controller (with its own programming) to complement it?

I can understand why the standard ECU needs a supplemental controller to drive the standard ECU into thinking it still has the narrow band connected, but why does the custom ECU (MS PNP) also need this?

I guess, because I don't understand what the O2 controller does, I'm also not fully understanding why it is needed.

G

Re: Bosch LSU 4.2 Wideband O2 Sensor

Posted: Tue Jun 14, 2011 3:28 pm
by NitroDann
A narrow band sensor simply uses heat energy from the exhaust combined with a chemical reaction with itself and the exhaust gases to produce a voltage. Depending on what Air Fuel ratio passes through it changes that voltage between 0 and 1.1 volts.
Unfortunaately narrowbands dont produce a linear voltage, they will read very rich anywhere under 0.4v and very lean anywhere above 0.6v. So they are great at telling you what side of stoichiometric you are but they wont help you tune your car to exactly 11.8:1 at 6PSI.

A wideband can do this but does not produce a voltage all on its own. It requires a medium current circuit running to it to run its heater circuit, as well as a controller that can determine its exact temp and know when to apply that heater current. The controller has to provide the wideband with some crazy signal, only to recieve a much crazier one back, the controller then needs to decode this and turn it into a readable perfectly linear voltage.

As I said in the first reply on this thread, the cheapest controller circuit that can achieve this currently available, is from jaycar and costs 70 dollars.

A lot of megasquirt, and other ecu users, do not need or want closed loop fuell control. If this were on the board it would increase the cost by 70 dollars and stop the sensor from being able to unplug from one car and go and tune another. The total cost for computer and sensor would be the same but versatility would be way down, and some users would pay 70 for something they wont use.

Dann