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another WHAT THE F**K is this?


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13 replies to this topic

#1 morgish

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Posted 15 February 2007 - 09:49 AM

Hey,

This thread is going to be very on going as I am relooming my engine bay.

Here is a picture of some wires that apear to do fu** all, goes from 8? wires to 2?

Posted Image

Edited by Umai Naa, 15 February 2007 - 05:45 PM.
Title edited - Mods.

Trying to drift an open-centre diff is alot like masturbation, it's alot of hard work, it's not acceptable in public, if you do it too often you deserve to go blind and in the end you're only f--king yourself.


#2 Ozchuck

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Posted 15 February 2007 - 12:20 PM

Mine has that too.
I dont remember what it does, but I do remember it being important.

Theres heaps of plugs from, the s12 that arent in the s13 and visa versa, so its probably worth while ripping the wire covers off everything and checking out if anything leads to nowhere.
Posted ImageMATTHEW - S12 Gazelle - THE NISSAN KE70!S12GAZELLE.COM - AUS12.ORG - CLUB-S12.ORG <- Lets all forget our troubles with a big bowl of strawberry icecream

#3 gerryb

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Posted 15 February 2007 - 01:16 PM

Workshop Manual?
I hate fat people!!

#4 morgish

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Posted 15 February 2007 - 01:54 PM

Don't have one?

Trying to drift an open-centre diff is alot like masturbation, it's alot of hard work, it's not acceptable in public, if you do it too often you deserve to go blind and in the end you're only f--king yourself.


#5 Pistonfreak

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Posted 15 February 2007 - 02:08 PM

I've got the manual lol doesn't everybody?

It's diaphram thar cut's your fuel pump out when the engine has too much or too little amount of vacumme.
It's a boost switch , and from what I can make from the diagram and from a stripped harness
God knows why Nissan put a boost switch on a N/A car lol
I have never tested the circut on a going car to see what it will actually do and my car doesn't have one any more
But if someone want's to see what it does put a bicycle pump in the vac. line going into the switch and block where it goe into the engine . Start the car add some presure and see if the car cuts out or fuel pump turns off whilst adding a little air. I wouldnt go over 20psi pressure or you may damage the switch
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#6 Lister

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Posted 15 February 2007 - 02:15 PM

its actually the map sensor that controls the second ignition(exhaust side) Coil on ca20e powered s12's, On the turbo version it doubles as a boost sensor.
Somehow i've ended up working for Toyota, If you need something special, or you have a friend in need, i'm willing to help. 07 4667 6025...Bloody Toyota's, Only good for keeping you in a job.....

#7 Umai Naa!!

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Posted 15 February 2007 - 05:43 PM

I suppose mine's redundant now, since I've bridged the coils :P

im usually naked anywayclothes are for rich ppl


Can do cash jobs!

I can even come to you!

#8 mats12

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Posted 15 February 2007 - 05:58 PM

My mechanic told me it was the fretzer valve. It cost me $370 for him to replace it.
Matt______________________________________________________________________________Insert funny remark here

#9 Umai Naa!!

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Posted 15 February 2007 - 06:34 PM

Owned!!

im usually naked anywayclothes are for rich ppl


Can do cash jobs!

I can even come to you!

#10 gerryb

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Posted 15 February 2007 - 07:22 PM

Mat your joking right? If not he really took you!!
I hate fat people!!

#11 Pistonfreak

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Posted 15 February 2007 - 07:27 PM

its actually the map sensor that controls the second ignition(exhaust side) Coil on ca20e powered s12's, On the turbo version it doubles as a boost sensor.



It's diaphram thar cut's your fuel pump out when the engine has too much or too little amount of vacumme.
It's a boost switch , and from what I can make from the diagram and from a stripped harness
God knows why Nissan put a boost switch on a N/A car lol


It's acually called a boost switch in the factory nissan manual
If it was a MAP sensor they would of called it one and it would measure Manifold Absolute Pressure with a value for air pressure. It just breaks the circut more like a hobb switch working in reverse. If it was a MAP it would also send a signal back to the ECU and we all wouldn't need MAF sensors restricting the intake
But as you said the ignition wire of the second coil also goes in through it
But it's not exactly a MAP sensor It's only function is on/off

Cheers
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#12 morgish

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Posted 16 February 2007 - 08:12 AM

I suppose mine's redundant now, since I've bridged the coils :P


I guess mines redundant with a CA18.

Thanks guys, an other thing to remove.

Trying to drift an open-centre diff is alot like masturbation, it's alot of hard work, it's not acceptable in public, if you do it too often you deserve to go blind and in the end you're only f--king yourself.


#13 ad411

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Posted 01 March 2007 - 08:26 PM

When I got my s12, If you booted it, bleah. it would just die.
if you drove it slowly though it went all right.
I had a talk with the previous owner and he said one day it just
stopped altogether, and he had it towed to the local sparky (not me!)
and had the ignition module replaced at great cost ($380!!!)
Anyway...when I bought it, I noticed a rubber hose at the back of the
engine bay had "fell off" that vacuum switch, so I put it back on.
Bad move. turned out the sparky had left the pipe off 'cause the new
ignition module wasn't the right one (a no-name black piece of s@*t)
and it only had provision for 1 coil.
every time the vacuum switch turned off, bleah. No spark.
If he had hooked up the coil that fires all the time and not the one
that turns off under load, nobody would of known!!!
As it was, I had a brand new bosch r31 pinny distributor, so I fitted that,
put the pipe back on, problem gone!!! ;)

#14 Lister

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Posted 02 March 2007 - 03:03 PM

One word of caution,, I have always had trouble with Pintara distributors causing pinging under load. The preset mechanical advance in the bosch dissy is too sharp and thus Pinging.
Somehow i've ended up working for Toyota, If you need something special, or you have a friend in need, i'm willing to help. 07 4667 6025...Bloody Toyota's, Only good for keeping you in a job.....




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