Pic needed *sensor behind Intake Manifold*

[Vertiviper]

I'm considering doing my LS1 to LS6 intake swap myself, i've read through the writeups ad nausium and the only part that I hear is tricky is removing the sensor that is attached behind the manifold.

Does anyone have a picture of the part so I now exactly what I would be dealing with so i'm not fishin around back there blindly?

Thanks

[jiveass]

are you talkin about the oil sending unit?..refer to this thread,...

http://www.ls1.com/forums/showthread.php?t=133355

[shady milkman]

I'm considering doing my LS1 to LS6 intake swap myself, i've read through the writeups ad nausium and the only part that I hear is tricky is removing the sensor that is attached behind the manifold.

Does anyone have a picture of the part so I now exactly what I would be dealing with so i'm not fishin around back there blindly?

Thanks

you wont miss it..it is on the driver side...if you follow the brake booster line you will run right into it...here is a picture of my car .. see the sensor with the green top. sorry for the dirty valley ...this was pre ls6 valley install and before i cleaned it up.

[jiveass]

im guessin i had the wrong sensor? lol..

[shady milkman]

im guessin i had the wrong sensor? lol..

[ICRAZY6]

Or maybe a MAP sensor? Simply pulls right out. Has a nipple with a rubber gasket on it.

[shady milkman]

Or maybe a MAP sensor? Simply pulls right out. Has a nipple with a rubber gasket on it.

i doubt it..i bet he is refering to the opsu as it is the one that usually gets busted

[Cutlass]

heres the MAP sensor on the back of the intake

[az gt eater]

its pretty easy , just loosen all the bolts, and remove the ones you can. and pull it forward enough to spin it to the drivers side and unhook. mine didnt even have a hose clamp on it. p.s. wear gloves. the little plastic tabs under the windshield are razor sharp. youll look like you went two rounds with a bag of kittens.

[Vertiviper]

Just making sure...there's no point in physically unplugging the opsu, or is there?

[Vertiviper]

The more i've been looking around online, it just looks like as long as you unplug the MAP sensor and the small vacuum line on the passenger side of the rear of the intake, then guide the brake booster vacuum line counterclockwise, and do NOT pull forwards..I should be ok.

[c5z28]

^technically you should be okay, every car is different one I got over the opsu another the clip faced the back of the manifold and there was no way I could unclip the damn thing because my hand just couldn't twist that way, w/ the wire going over the brake booster I couldn't get around braking it, although now I realize I could have cut sliced the brake booster line on the manifold to slide it off and then I probably could have saved the opsu. I have also used a opsu socket (from local car parts store) and placed it over the unplugged opsu) so if I did end up bumping it the socket would be protected. Here is another pic
you can see that the tab on this opsu is facing away from the manifold so it is easier to unplug than the one I had to deal with.

[Vertiviper]

^technically you should be okay, every car is different one I got over the opsu another the clip faced the back of the manifold and there was no way I could unclip the damn thing because my hand just couldn't twist that way, w/ the wire going over the brake booster I couldn't get around braking it, although now I realize I could have cut sliced the brake booster line on the manifold to slide it off and then I probably could have saved the opsu. I have also used a opsu socket (from local car parts store) and placed it over the unplugged opsu) so if I did end up bumping it the socket would be protected. Here is another pic
you can see that the tab on this opsu is facing away from the manifold so it is easier to unplug than the one I had to deal with.

So you're saying unplug the opsu so that I can pull the brake booster line over the top, instead of having to fish it through?

[c5z28]

So you're saying unplug the opsu so that I can pull the brake booster line over the top, instead of having to fish it through?

You could fish it through but when your hands are bruised and cut-up, and swollen it's a little hard. If you can fish it through do it, if you find you can unplug the opsu easy enough do that so you don't try and fit 1' of rubber hose through that tiny space..

[Vertiviper]

You could fish it through but when your hands are bruised and cut-up, and swollen it's a little hard. If you can fish it through do it, if you find you can unplug the opsu easy enough do that so you don't try and fit 1' of rubber hose through that tiny space..

It's just a little clip, nothin fancy right?

[c5z28]

It's just a little clip, nothin fancy right?

Yep but like I said depending on how far that opsu was turned varies where the clip is facing, take a second look at my pic and the one shady milkman posted you can see the grey tab is in fact facing two different directions, So now you know the angle of the clip can vary from car to car, in these two instances it was accessible (in one of my cases it wasn't, just depends how far the last guy turned it). All those clips have those rubber boots on em so they might give you some initial grief but talking dirty always helped me.
So if you can unplug do it, if not fish it out

[Vertiviper]

Yep but like I said depending on how far that opsu was turned varies where the clip is facing, take a second look at my pic and the one shady milkman posted you can see the grey tab is in fact facing two different directions, So now you know the angle of the clip can vary from car to car, in these two instances it was accessible (in one of my cases it wasn't, just depends how far the last guy turned it). All those clips have those rubber boots on em so they might give you some initial grief but talking dirty always helped me.
So if you can unplug do it, if not fish it out

Thanks man, you cleared up a lot of guessing on my part.

[c5z28]

Everyone wants the next guy to succeed on this sight
2 more things, I don't recall if the how to says to unplug the fuel rail, I have never had to, after you take off the fuel rail from the manifold you can rotate it pretty freely and I usually spin it upside down and rest it toward the driver side (you'll see what I mean when you get the fuel rail off). Lastly when torquing down the manifold one of the injector(those 8 little electrical caps) found a resting spot in the head port (electrical cap was in the head and we tightened the manifold over the wire), we tightened the manifold down and realized what we had done after the fact (it was 1a.m) So we had to take it off and pull the little whore out. Just a little story to remind you to make sure you don't lose anything down there

[Vertiviper]

Everyone wants the next guy to succeed on this sight
2 more things, I don't recall if the how to says to unplug the fuel rail, I have never had to, after you take off the fuel rail from the manifold you can rotate it pretty freely and I usually spin it upside down and rest it toward the driver side (you'll see what I mean when you get the fuel rail off). Lastly when torquing down the manifold one of the injector(those 8 little electrical caps) found a resting spot in the head port (electrical cap was in the head and we tightened the manifold over the wire), we tightened the manifold down and realized what we had done after the fact (it was 1a.m) So we had to take it off and pull the little whore out. Just a little story to remind you to make sure you don't lose anything down there

lol..ouch, you didn't start the car did you?!

Yea the fuel lines i'm gonna keep connected, there really is no need unless you want to transfer the injectors separately.

[c5z28]

lol..ouch, you didn't start the car did you?!

Yea the fuel lines i'm gonna keep connected, there really is no need unless you want to transfer the injectors separately.

Nope just after we put the manifold back in the next step was those plugs and what do you know the last one I go to plug in I can't find Although i'm sure I told my buddy it would sound like it had a cam if we just left it. Straight forward fix just a time confusing itty bitty mistake.