Boost Gauge and MBC install
Mar 2, 2008 | 05:42 PM
#19
Thread Starter
Evolved Member
Joined: Feb 2004
Posts: 621
Likes: 0
From: Texas
I dont have power ran to mine yet since i didnt have it mounted but you have to simple options 1. you can run fused link from either of your fuseboxes one under the hood and the other is under the Left side of the dash. I usually track down my headlight or dash light wire and tap into that so it will come on when you turn your lights on. I did find my mount so i may get to the wiring this week.
Mar 2, 2008 | 07:32 PM
#20
Evolving Member
Joined: Jan 2008
Posts: 149
Likes: 0
From: indiana
I dont have power ran to mine yet since i didnt have it mounted but you have to simple options 1. you can run fused link from either of your fuseboxes one under the hood and the other is under the Left side of the dash. I usually track down my headlight or dash light wire and tap into that so it will come on when you turn your lights on. I did find my mount so i may get to the wiring this week.
Mar 14, 2008 | 02:05 PM
#24
If you look into your engine compartment, there is a small 1" plug all the way to the left of the engine bay (passenger side).... its tucked pretty far down there, but can be easily reached by hand...
The hard part is poking through the inside insulation behind your glovebox, but its right smack behind the sirius sat module....
The hard part is poking through the inside insulation behind your glovebox, but its right smack behind the sirius sat module....
Mar 24, 2008 | 12:32 PM
#26
Newbie
Joined: Mar 2008
Posts: 89
Likes: 0
From: Denver
Ok, i am very confused. You installed your MBC much different than I. Is it working? Are you having any problems? Let me explain:
If you look behind your engine, you will see a vacuum line running from the pipe attached to your turbo. This pipe goes to the intercooler, so the hose running off of it should be a pressure line. This hose goes to the wastegate, with a T running off towards the two electronic boost controllers. Each boost controller also has a hose with white lines on it, which runs to the air intake. Since it's running to the air intake, this line is NOT pressurized. In fact, it probably vents air TO the intake. I THINK that the electronic boost controller regulates boost by opening up a valve, which vents off air back into the intake system, making the turbo spool more to increase boost.
From your writeup, it sounds like you connected the black pressurized wastegate line, and the striped unpressurized intake line to your MBC. Depending on which way the MBC is hooked up you've either plugged this end off, which effectively eliminates the stock boost controllers, or your venting pressure to the intake (just like the stock one does). If you are able to adjust your boost (and i'm assuming you are) then its the second option and your setup works by slightly depressurizing the boost signal line running to the wastegate.
This is NOT how i understood most mechanical boost controllers are meant to work. They are designed to function "in-line". The input should be a pressurized line, and the output should go to the wastegate (not venting to the atmostphere).
I hooked up my MBC differently than you, and after disconnecting the electronic boost controllers, it works perfectly. I installed it on the pressure line, between the turbo and the plastic T. Since i installed it at the source of the boost signal, adjusting the MBC should adjust the boost seen by the entire system. However, I had to unplug the wiring harness attached to the two electronic boost controllers. if i didn't, i would get 25+ psi, even with the MBC on its lowest setting. Once i unplugged the EBC it worked perfectly for about 10 min, then the service engine light came on. I think i've figured out how to fix this though. I'm going try plugging the end of the hose going to the intake, and leave the electronic boost controllers plugged in. This will make them unable to vent air to the intake, hence they won't affect the boost levels.
However, if other people have had success using the OP's method, please say so and I will just install it the way he did.
If you look behind your engine, you will see a vacuum line running from the pipe attached to your turbo. This pipe goes to the intercooler, so the hose running off of it should be a pressure line. This hose goes to the wastegate, with a T running off towards the two electronic boost controllers. Each boost controller also has a hose with white lines on it, which runs to the air intake. Since it's running to the air intake, this line is NOT pressurized. In fact, it probably vents air TO the intake. I THINK that the electronic boost controller regulates boost by opening up a valve, which vents off air back into the intake system, making the turbo spool more to increase boost.
From your writeup, it sounds like you connected the black pressurized wastegate line, and the striped unpressurized intake line to your MBC. Depending on which way the MBC is hooked up you've either plugged this end off, which effectively eliminates the stock boost controllers, or your venting pressure to the intake (just like the stock one does). If you are able to adjust your boost (and i'm assuming you are) then its the second option and your setup works by slightly depressurizing the boost signal line running to the wastegate.
This is NOT how i understood most mechanical boost controllers are meant to work. They are designed to function "in-line". The input should be a pressurized line, and the output should go to the wastegate (not venting to the atmostphere).
I hooked up my MBC differently than you, and after disconnecting the electronic boost controllers, it works perfectly. I installed it on the pressure line, between the turbo and the plastic T. Since i installed it at the source of the boost signal, adjusting the MBC should adjust the boost seen by the entire system. However, I had to unplug the wiring harness attached to the two electronic boost controllers. if i didn't, i would get 25+ psi, even with the MBC on its lowest setting. Once i unplugged the EBC it worked perfectly for about 10 min, then the service engine light came on. I think i've figured out how to fix this though. I'm going try plugging the end of the hose going to the intake, and leave the electronic boost controllers plugged in. This will make them unable to vent air to the intake, hence they won't affect the boost levels.
However, if other people have had success using the OP's method, please say so and I will just install it the way he did.
Mar 24, 2008 | 05:45 PM
#28
Ok, i am very confused. You installed your MBC much different than I. Is it working? Are you having any problems? Let me explain:
If you look behind your engine, you will see a vacuum line running from the pipe attached to your turbo. This pipe goes to the intercooler, so the hose running off of it should be a pressure line. This hose goes to the wastegate, with a T running off towards the two electronic boost controllers. Each boost controller also has a hose with white lines on it, which runs to the air intake. Since it's running to the air intake, this line is NOT pressurized. In fact, it probably vents air TO the intake. I THINK that the electronic boost controller regulates boost by opening up a valve, which vents off air back into the intake system, making the turbo spool more to increase boost.
From your writeup, it sounds like you connected the black pressurized wastegate line, and the striped unpressurized intake line to your MBC. Depending on which way the MBC is hooked up you've either plugged this end off, which effectively eliminates the stock boost controllers, or your venting pressure to the intake (just like the stock one does). If you are able to adjust your boost (and i'm assuming you are) then its the second option and your setup works by slightly depressurizing the boost signal line running to the wastegate.
This is NOT how i understood most mechanical boost controllers are meant to work. They are designed to function "in-line". The input should be a pressurized line, and the output should go to the wastegate (not venting to the atmostphere).
I hooked up my MBC differently than you, and after disconnecting the electronic boost controllers, it works perfectly. I installed it on the pressure line, between the turbo and the plastic T. Since i installed it at the source of the boost signal, adjusting the MBC should adjust the boost seen by the entire system. However, I had to unplug the wiring harness attached to the two electronic boost controllers. if i didn't, i would get 25+ psi, even with the MBC on its lowest setting. Once i unplugged the EBC it worked perfectly for about 10 min, then the service engine light came on. I think i've figured out how to fix this though. I'm going try plugging the end of the hose going to the intake, and leave the electronic boost controllers plugged in. This will make them unable to vent air to the intake, hence they won't affect the boost levels.
However, if other people have had success using the OP's method, please say so and I will just install it the way he did.
If you look behind your engine, you will see a vacuum line running from the pipe attached to your turbo. This pipe goes to the intercooler, so the hose running off of it should be a pressure line. This hose goes to the wastegate, with a T running off towards the two electronic boost controllers. Each boost controller also has a hose with white lines on it, which runs to the air intake. Since it's running to the air intake, this line is NOT pressurized. In fact, it probably vents air TO the intake. I THINK that the electronic boost controller regulates boost by opening up a valve, which vents off air back into the intake system, making the turbo spool more to increase boost.
From your writeup, it sounds like you connected the black pressurized wastegate line, and the striped unpressurized intake line to your MBC. Depending on which way the MBC is hooked up you've either plugged this end off, which effectively eliminates the stock boost controllers, or your venting pressure to the intake (just like the stock one does). If you are able to adjust your boost (and i'm assuming you are) then its the second option and your setup works by slightly depressurizing the boost signal line running to the wastegate.
This is NOT how i understood most mechanical boost controllers are meant to work. They are designed to function "in-line". The input should be a pressurized line, and the output should go to the wastegate (not venting to the atmostphere).
I hooked up my MBC differently than you, and after disconnecting the electronic boost controllers, it works perfectly. I installed it on the pressure line, between the turbo and the plastic T. Since i installed it at the source of the boost signal, adjusting the MBC should adjust the boost seen by the entire system. However, I had to unplug the wiring harness attached to the two electronic boost controllers. if i didn't, i would get 25+ psi, even with the MBC on its lowest setting. Once i unplugged the EBC it worked perfectly for about 10 min, then the service engine light came on. I think i've figured out how to fix this though. I'm going try plugging the end of the hose going to the intake, and leave the electronic boost controllers plugged in. This will make them unable to vent air to the intake, hence they won't affect the boost levels.
However, if other people have had success using the OP's method, please say so and I will just install it the way he did.
Mar 24, 2008 | 06:39 PM
#29
Newbie
Joined: Mar 2008
Posts: 89
Likes: 0
From: Denver
Ok i have found what i believe to be a much simpler installation.
Just unplug the hose where it connects to the wastegate. plug that hose onto the intake on your mbc. (some mbc's refer to this as the "turbo" side) take an additional hose and plug it from the output of your mbc (or wastegate side) to the wastegate.
Doing it this way means you don't have to unplug the electronic boost controllers. They see a normal signal, and only the wastegate is adjusted with the mbc.
Just unplug the hose where it connects to the wastegate. plug that hose onto the intake on your mbc. (some mbc's refer to this as the "turbo" side) take an additional hose and plug it from the output of your mbc (or wastegate side) to the wastegate.
Doing it this way means you don't have to unplug the electronic boost controllers. They see a normal signal, and only the wastegate is adjusted with the mbc.
Mar 24, 2008 | 11:37 PM
#30
Evolving Member
Joined: Mar 2008
Posts: 114
Likes: 0
From: Granada Hills
Ok i have found what i believe to be a much simpler installation.
Just unplug the hose where it connects to the wastegate. plug that hose onto the intake on your mbc. (some mbc's refer to this as the "turbo" side) take an additional hose and plug it from the output of your mbc (or wastegate side) to the wastegate.
Doing it this way means you don't have to unplug the electronic boost controllers. They see a normal signal, and only the wastegate is adjusted with the mbc.
Just unplug the hose where it connects to the wastegate. plug that hose onto the intake on your mbc. (some mbc's refer to this as the "turbo" side) take an additional hose and plug it from the output of your mbc (or wastegate side) to the wastegate.
Doing it this way means you don't have to unplug the electronic boost controllers. They see a normal signal, and only the wastegate is adjusted with the mbc.