hello everyone.
i got the motorola 3 bar and 4 bar map sensors.
i looked in xenocron's manual and it says that the first "guiding" pin or what ever should have a nouch on it.... but i didnt found any....


can somone please help....

thanks...

 

I have the same sensor, i also don't see a notch now that you have brought it to my attention. A nice write-up of the install would help .

 

man i hope somebody can come up with a answer to this. ive got a 3 bar and need to know also, i dont want to clip the wrong ones.

 

help bu

 

Generally on soic chips when you turn it so you can read the wording its the bottom left pin. So I would say the pin by the 'k'. I was just building something with a motorola soic chip that had no markings either, however it followed this theory.

 

All of these data sheets are available online. Do a search. Its not that hard.

 

if you know where to find the data sheets, can you post on where to find em' would really appreciate it. thanks!

 

google.com Not hard. Learn to use the internet.

 

alright man...chill out, you dont have to be like that, it was a simple ? the time it took you to post that you could of been a helpful person and, posted the actual page. but its cool.

 

Um, there is a very old saying; "Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime."

 

just fyi i looked at the data sheets before answering the post and it just says pin 1 is the chamfered edge. It looks like they're talking about the other available package. From the pic, that one doesn't look like it has any chamfered edge.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nowtype &raquo;</TD></TR><TR><TD CLASS="quote">Um, there is a very old saying; "Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime."</TD></TR></TABLE>

c'mon man.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueSi2k &raquo;</TD></TR><TR><TD CLASS="quote">just fyi i looked at the data sheets before answering the post and it just says pin 1 is the chamfered edge. It looks like they're talking about the other available package. From the pic, that one doesn't look like it has any chamfered edge.</TD></TR></TABLE>

They are certainly talking about the other package; I have that sensor on my personal build.
( http://www.freescale.com/files...A.pdf )

To the original poster - 5 out of the 8 pins are not used. It was quite easy to find a datasheet on that sensor, but it was still unclear within the documentation. Can you take a better picture of the bottom of the sensor please?

http://www.freescale.com/files...A.pdf

If I had to guess.... the top pins are not used. The pin all the way to the left is also not connected, leaving the remaining three pins on the bottom... but like I said thats just a guess.

Vs (+5v signal)
Gnd (signal ground)
Vo (output voltage)

Also-

From hondata's site for a B series harness
GND Green/White
MAP signal White
5V Yellow/Red

If this doesn't help, I may have one here in a lab... or I can order a sample and try it out here. I am sure the sample would make it to me in a timely manner given where I work

Let me know how I can help and I will

 

If you look at it from underneith (port facing away), you'll see one of the bottom corners has a different shape (chamfered). The pin closest is pin #1. With this package, they used a cap/top that didn't keep that chamfered edge from top to bottom, so you won't see it looking from top-down.


For theses sensor packages:

#2 = Vs (+5v signal)
#3 = Gnd (signal ground)
#4 = Vout (output voltage)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by HiProfile &raquo;</TD></TR><TR><TD CLASS="quote">If you look at it from underneith (port facing away), you'll see one of the bottom corners has a different shape (chamfered). The pin closest is pin #1. With this package, they used a cap/top that didn't keep that chamfered edge from top to bottom, so you won't see it looking from top-down.


For theses sensor packages:

#2 = Vs (+5v signal)
#3 = Gnd (signal ground)
#4 = Vout (output voltage)</TD></TR></TABLE>

you are right... i'm too stupid.
last night i looked at the dada sheet and the sensor , and then i saw it.

from what i understand from the sheet... this it how it should go....i think..
(ignor my ugly thumb)

whatcha think?

 

Crap - sorry for the delayed response, I didnt see it until now.

That looks good to me, I wish that documentation was a little more descriptive though.

 

Check out this thread at homemadeturbo

http://www.homemadeturbo.com/f...sg879

 

take anoter look on the second page.... i posted there too...

i even talked to madmax and he dont remember....

 

ive got vacuum lines bigger than that! lol

Did you say you got it from chris at xenocron?

 

well no....
i got it... from a friend

 

You got it from freescale.com. Its not a secret.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RACEPAK &raquo;</TD></TR><TR><TD CLASS="quote">take anoter look on the second page.... i posted there too...

i even talked to madmax and he dont remember....</TD></TR></TABLE>


There's a diagram on the first post of the thread.

 

You can buy these gems from most places that sell the ported 2.5bar, except - for less. Like $13+6 shipped for the one pictured. They don't make the 3bar in a ported version like the 2.5, but all thats needed is to put it in a small housing, box, etc and hook it to the manifold.

BTW thats a good picture, not many people know about the macro setting

 

For ease of making these fit on your vehicle, Dave B and I developed a small circuit board. Fits nicely inside a stock MAP sensor housing

http://www.xenocron.com/boards.htm

 

On a similar note... My OEM map does not have the yellow/red +5v wire. Its got

grn/wht (ground I believe)
white (Vo I believe)
yel/wht (+5v???)

Is the above correct?