So I just bought a turbo 2 with 144k on the body and 5k on a rebuild. I went to hook up the boost gauge to it and noticed there is no map sensor :-( the car has a micro tech stand alone, so im wondering if it was taken out because of the stand alone. is this a common thing? Where do I hook up the gauge, I noticed the line for the gauge leading to the blow off valve, is that the correct spot for it?

Thanks in advance

 

Put it where the sensor is gonna see boost and vacuum.Lots of spots on the engine.
Throttle body nipple.
Manifold nipple.passenger side.

 

So I hooked it up to one of the three nipples on the throttle body that is behind the alternator and now it reads body and no vacuum. I take it I'm getting closet, just have to wait for the car to cool off now, lol

 

Not every nipple on the intake are vacuums even though they all look the same. Check out the FSM or search for S4 vacuum diagram. The easiest will be to find the nipple that fed the OEM air pressure sensor.

Good luck with your project.

 

As suggested earlier, there is a lone nipple on the upper intake manifold facing the passenger side strut. That is where the factory sensor connects.

 

I got it, it works now

 

out of the 3 facing the alternator you happened to pick the middle one, which doesnn't read vacuum.

the microtech ECU map sensor is mounted inside the ECU and you shouldn't tap anything into its dedicated vacuum line. ie if your boost gauge line develops a leak it may bleed off boost pressure and cause a lean detonation.

 

Now I need to find someone to tune it in my area

 

Jesus Padilla of Kilo racing in central Fla specializes in microtech tuning.

(i swear i should be paid for advertising..)

 

Lol thanks. New question, I'm installng a boost controller and wad curious which lined go where, especially the line that is supposed to go to the boost sensor in the instructions

 

Install at the Turbo line that goes to the waste gate. From turbo, to boost controller, from boost controller to waste gate. Turn the boost controller ALL the way down and turn the boost up as needed.

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So I don't need to splice the line that its supposed to go to the sensor as indicated in the instructions?

 

Yes and no. I spliced that line on the uim to run my boost gauge. As far as the controller goes, splice it in where I said.



This is the line to splice the controller into.

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Okay so you plugged it into the turbo itself going from the wastegate

 

Your boost controller is directional only one way. So this is the direction of the line.
Starting At the turbo:

Turbo to controller,
Controller to waste gate.

done.

Turn the controller all the way down.
Start the car.
Drive and adjust up to desired boost.

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cool beans.

i should probably put the mods and such for my new toy =P I will do that on another thread

 

Remember your adding length to that line. Keep the lines as short as possible within reason.

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So as close to the wastegate and as close to the turbo as possible?

 

Minimal extra lines. I only add about 6" on new lines. But that's just my opinion. I have mine "floating" close to the turbo, but I also have an in cabin adjustment so I never have to touch it under the hood to adjust it. I'll take a picture if I can in a lil bit.

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I didn't get a picture but I'm just gonna leave this here.




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New question now, I have a 4 pound spring in the wastegate right now, I want to get a 15 pound/1 bar spring. I don't know the size of the gate, how do I measure it to order the proper spring?

Oh I got the controller to work, thanks a bunch. The turbo spools up easier now than it did before

 

Anyone on my queston?

Also I want to change my transmission fluid, what are you guys running? Manual tranny of course

 

Heard Redline has some good stuff

 

Red line isn't available in my area

 

make sure you get it tuned ( or verifiy its tuned) correctly before upping the boost!