need help installing greddy profec b spec 2
05-28-04, 05:16 PM
#1
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need help installing greddy profec b spec 2
Hi guys.I just received my greddy profec b spec 2 boost controler.Ive looked at the guide and im having trouble understanding it all.Has anyone installed this by themselves? if so could you break it down as to what you did.Pictures would be extremely helpfull.What can I say.Im a visual learner.If anyone has any pics of their setup and or information please help me out on this one.I would really appreciate it.Thank you all.
I have the stock twins if that helps.
I have the stock twins if that helps.
05-28-04, 06:48 PM
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ok after looking through the manual several times ive been able to understand some of it but I still need some help.In the manual it shows the three way splitter that you are supposed to connect to the vacuum hose that goes to the fuel pressure regulator.So essentially theres supposed to be 3 vacuum lines run from the splitter.The original vacuum line that goes to the fuel pressure regulator plugs into one of the nipples.The second nipple runs a second vacuum hose to the pressure regulator.The third is supposed to be ran to the greddy profec b spec 2 vacuum nipple.Is this all correct?
The next area im a little shakky on is what happens to the wastegate solenoid ? Since the greddy profec b spec 2 will control the wastegate? I know that the wastegate solenolid is connected to the pre control solenoid.Its the dual solenoid that bolts to the uim.So what do I do with the two vacuum lines that run to it?
Do I dissconnect the vacuum hoses? and plug up the wastegate side of the solenoid? I read somewhere that you only plug up the bottom nipple on the wastegate solenoid.Is this info correct.
The next area im a little shakky on is what happens to the wastegate solenoid ? Since the greddy profec b spec 2 will control the wastegate? I know that the wastegate solenolid is connected to the pre control solenoid.Its the dual solenoid that bolts to the uim.So what do I do with the two vacuum lines that run to it?
Do I dissconnect the vacuum hoses? and plug up the wastegate side of the solenoid? I read somewhere that you only plug up the bottom nipple on the wastegate solenoid.Is this info correct.
05-28-04, 07:34 PM
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Don't mess with the pre-control actuator.
For the boost controller solenoid run the hose from the turbo to the boost control solenoid, then from the boost control solenoid back to the wastegate actuator. Cap the nipple on the bottom of the wastegate actuator and cap the nipple (hard ppe with vacuum hose attached)that the hose that orginally went from the acuator to the wategate solenoid (this solenoid is no longer needed because of boost controller).
Do not tap into the fuel pressure regulator. There is an unused nipple on the uim (unless you already have a boost gauge attached), use that to attach the hose to the actual boost controller inside car. If you already have a boost gauge just tee off that line.
Hope this helps.
For the boost controller solenoid run the hose from the turbo to the boost control solenoid, then from the boost control solenoid back to the wastegate actuator. Cap the nipple on the bottom of the wastegate actuator and cap the nipple (hard ppe with vacuum hose attached)that the hose that orginally went from the acuator to the wategate solenoid (this solenoid is no longer needed because of boost controller).
Do not tap into the fuel pressure regulator. There is an unused nipple on the uim (unless you already have a boost gauge attached), use that to attach the hose to the actual boost controller inside car. If you already have a boost gauge just tee off that line.
Hope this helps.
05-28-04, 11:46 PM
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im a little unclear about the first part.but I understand the part about teeing into the boost gauge nipple.Yes I already have a boost gauge hooked up to the nipple.So ill use the three way splitter there.Thank you for the info.
The wastegate solenoid has two vacuum hoses and two nipples.Do I cap off both of them ? A pic on this one would really help.I know the wastegate solenoid is the right part of the dual solenoid.
The wastegate solenoid has two vacuum hoses and two nipples.Do I cap off both of them ? A pic on this one would really help.I know the wastegate solenoid is the right part of the dual solenoid.
05-29-04, 07:47 AM
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still need a little help here guys pertaining to the caping off of the wastegate solenoid.Also where did you guys mount your control box and where did you guys mount the boost control solenoid part? my last question is where did you guys hook up the electrical wires to power the unit.With this info I am confident that I can install the unit.Thank you.
05-29-04, 08:18 AM
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I would have though more people would have chimed in.Since there are soo many profec b users out there.
Hopefully someone can give me a good response so I can go ahead and install the thing.
Hopefully someone can give me a good response so I can go ahead and install the thing.
05-29-04, 11:28 AM
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The wastegate actuator is the the to the upper left. It orginally has a vacuum hose with a pill in it in stock form. This hose goes from a nipple on the turbo unit to the actuator. Remove this hose. Now run one of the supplied hose with the profec from the nipple on the turbo unit to the supplied boost control solenoid with the profec. There are three holes on the unit use the in and out the the directions specify for an internal wastegate. Not the external wastegate. The hose from the turbo unit to the profec boost control solenoid goes to the in nipple on the controller unit. Then run the supplied vaccum hose with the unit from the out nipple on the control unit to the top left nipple on the wastegate actuator. Now you have completed the loop of the were the original line that had the pill was.
Now you need to remove the hose that goes from the bottom right of the wastegate actuator to the stock wastegate solenoid. Which is no longer needed. This hose is connected to the bottom right of the wastegate actuator to some hard vaccum lines that attach near the primary turbo. When you remove this hose cap the nipple on both ends (the bottom right nipple on WG actuator and the hard line that the hose was connected to). This hard line runs up to the stock WG solenoid on the top of the motor.
There is no need to mess with the stock WG solenoid leave the thing plugged up. If you do decide to remove it completely then yes you would cap all exposed nipples going to the solenoid, or else have a major vaccum leak.
I hooked up the controller near the relays in front of the passenger wheel well. I mounted the controller with the supplied double sided tape on the steering column. The power is supplied though the cigar fuse and just ground it anywhere handy.
Can't get anymore detailed than that, sorry if it doesn't help.
Now you need to remove the hose that goes from the bottom right of the wastegate actuator to the stock wastegate solenoid. Which is no longer needed. This hose is connected to the bottom right of the wastegate actuator to some hard vaccum lines that attach near the primary turbo. When you remove this hose cap the nipple on both ends (the bottom right nipple on WG actuator and the hard line that the hose was connected to). This hard line runs up to the stock WG solenoid on the top of the motor.
There is no need to mess with the stock WG solenoid leave the thing plugged up. If you do decide to remove it completely then yes you would cap all exposed nipples going to the solenoid, or else have a major vaccum leak.
I hooked up the controller near the relays in front of the passenger wheel well. I mounted the controller with the supplied double sided tape on the steering column. The power is supplied though the cigar fuse and just ground it anywhere handy.
Can't get anymore detailed than that, sorry if it doesn't help.
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05-29-04, 01:25 PM
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thanx for claryfying some things.Ive managed to get quite far on my own.So the hose that goes from the back of the wastegate actuator has to be removed? or can I just leave that part connected?
The only other part im having trouble with is the power supply part.I tried to hook up the power cable to the same place that I spliced my boost gauge into.Which is the ashtray light.But Im not having any luck as the controller beeps off and on and an orage light flashes of and on the display.Im not very good with electrical stuff.
As for the cigarette lighter fuse part.I need you to be more specific on this part.Do I need to go find the fuse box and pull the gicarette fuse and put the power wire in there? or is there a power wire that runs to the cigarette lighter that I need to cut and splice the profecs power wire into?
The only other part im having trouble with is the power supply part.I tried to hook up the power cable to the same place that I spliced my boost gauge into.Which is the ashtray light.But Im not having any luck as the controller beeps off and on and an orage light flashes of and on the display.Im not very good with electrical stuff.
As for the cigarette lighter fuse part.I need you to be more specific on this part.Do I need to go find the fuse box and pull the gicarette fuse and put the power wire in there? or is there a power wire that runs to the cigarette lighter that I need to cut and splice the profecs power wire into?
05-29-04, 01:51 PM
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ok.so I figured out the power thing.No need for that anymore.Now I just need to know what to do with the vacuum line that runs to the back of the wastegate actuator.Now the real fun begins.Actually figuring out how to set the damn thing.
05-29-04, 03:51 PM
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ok so I ve tried to drive the car.but anytime the car hits higher than 7.5 psi the damn profec b shuts off and goes nutz.What the heck is wrong with the thing?
05-29-04, 11:15 PM
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Remove the vacuum line that runs to the back of wastegate actuator and cap both ends. You will only boost 7 psi if unit is off. Have you started setting gain, set boost, boost limiter. These could all be affecting you boost.
05-29-04, 11:22 PM
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thanx once again for the info.Ive managed to fix everything except the fact that everytime I turn on the lights the profec starts to ground out or something.This is the only problem that I am currently facing.Everything else works fine.The controller works without a hitch when the headlights are off.But when I switch on the parking lights or the driving lights the profec makes a beeping noise and the lcd flashes orange.I dont know what could be causing this.I took the cigarette lighter fuse out and connected the power wires to the slots.Still have the same problem.Any suggestions? Could my profec be damaged goods?
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