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boost controller not working

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98eclipsekidd08

15+ Year Contributor
186
0
Jan 17, 2007
North Olmsted, Ohio
ok so i hooked up my boost cont. the other day and no matter now much i tryed to increase boost it would stay around the stock 10-12 psi i have been running:confused: . I T off the line at the wastegate and then the line at the intake is that correct, i did have the wastegate one to the side with the arrow to. Also i heard its not good to do this but its supposed to work so i T off the line to the BOV to see if it would work and it still didnt, so i was woundering if it could be a faulty boost cont. I bought it off a kid so i dont know what it is he said it was a Turbonetics which it does look like but any knowledge would be appreshiated thanks...
 
ok so i hooked up my boost cont. the other day and no matter now much i tryed to increase boost it would stay around the stock 10-12 psi i have been running:confused: . I T off the line at the wastegate and then the line at the intake is that correct, i did have the wastegate one to the side with the arrow to. Also i heard its not good to do this but its supposed to work so i T off the line to the BOV to see if it would work and it still didnt, so i was woundering if it could be a faulty boost cont. I bought it off a kid so i dont know what it is he said it was a Turbonetics which it does look like but any knowledge would be appreshiated thanks...

If you could get the feed for the boost controller from a direct boost source, it would be better. Alot of people say it is not a good idea to "T" off the bov line.

Make sure the feed goes into the other end of the knob and the outlet(from the side) goes to the wastegate.
 
If you could get the feed for the boost controller from a direct boost source, it would be better. Alot of people say it is not a good idea to "T" off the bov line.

Make sure the feed goes into the other end of the knob and the outlet(from the side) goes to the wastegate.

Correct. It looks like the MBC is just hooked up improperly. If you are still on the stock t25, you can use the pressure source on the compressor housing or the LICP. Make sure the "out" is going to your wastegate.

Oh, and definitely never tee your BOV line for your MBC.
 

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yea i was told it works to T it at BOV so i just tryed it to see but mine still wasnt working, im not going to leeave it T there its off already. today i was told on a stock turbo/bov i cant make anymore boost than 12 and that i need a 1g bov, ture??? because im not sure. whats a line that i should T it at could i see a picture possibly.
 
1. Which type(ball&spring or bleeder)/brand of MBC?

2. Describe exactly how it is hooked up, details please, your original post was very confusing, show Tom how to use MS Paint properly. :D

3. Definitely don't tap the BOV line.
 
Do you still have the stock BOV?

My boost would not rise above 12psi with the stock BOV, as soon as I installed an aftermarket one I could set the boost at what ever I wanted.
 
i know the line is no longer tapped for the bov:thumb: , so ok here it is. STOCK gst i "T"d the line off the WASTEGATE and hooked it up to my turbonetics bleeder type MBC to the side that has the arrow for wastegate side. then i "T"d the line off my INTAKE and hooked it to the opposite side of the MBC. I turned it up and then still was boosting 12psi max. I think its the BOV itself i hear that a stock 2G BOV's cant hold anymore than 12 psi it just begins to leak so im getting a crushed 1G BOV and ill hook that up and go from there but is my MBC hooked up to the correct lines? sorry thats the best i can describe it all
 
i know the line is no longer tapped for the bov:thumb: , so ok here it is. STOCK gst i "T"d the line off the WASTEGATE and hooked it up to my turbonetics bleeder type MBC to the side that has the arrow for wastegate side. then i "T"d the line off my INTAKE and hooked it to the opposite side of the MBC. I turned it up and then still was boosting 12psi max. I think its the BOV itself i hear that a stock 2G BOV's cant hold anymore than 12 psi it just begins to leak so im getting a crushed 1G BOV and ill hook that up and go from there but is my MBC hooked up to the correct lines? sorry thats the best i can describe it all
Still Doesn't make sense.

1. Link us to the specific Turbonetics MBC.

2. Draw your hook up diagram on MS Paint. There should be no T'd off any line nor connected to any intake, whether you mean intake manifold or intake pipe. It should be like this, Turbo compressor fitting-> inlet of MBC Then outlet of MBC -> Wastegate actuator fitting. No T's, no INTAKE, just 2 lines in and out of the MBC.
 
hey, what's wrong with my paint skillz?
Nothing, except you don't know which type of MBC he has :p , the inlet and out of a bleeder type MBC are reversed, reason why I keep asking him which type he has. Also, you should finish the diagram which will show where each fittings are going to, as you can see from OP's post, it's very possible that his MBC outlet is going to the INTAKE PIPE where the stock BCS recirculates back to the intake. Furthermore, it's also very possible that his MBC inlet is connect to the T that use to go to the BCS, reason why he is getting stock boost.

Basically, I suspect he has place the MBC where BCS used to be.

OP said:
i know the line is no longer tapped for the bov , so ok here it is. STOCK gst i "T"d the line off the WASTEGATE and hooked it up to my turbonetics bleeder type MBC to the side that has the arrow for wastegate side. then i "T"d the line off my INTAKE and hooked it to the opposite side of the MBC. I turned it up and then still was boosting 12psi max. I think its the BOV itself i hear that a stock 2G BOV's cant hold anymore than 12 psi it just begins to leak so im getting a crushed 1G BOV and ill hook that up and go from there but is my MBC hooked up to the correct lines? sorry thats the best i can describe it all
 
Here, this is what I think he did.
 

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yea thats what i did and it dont work so its wrong i know im slow w/ all the car stuff i come on here to try and learn and thats what i read up but i guess its not how to do it:notgood: haha. Also i know the 2G bov is not good for anymore than 12psi it just leaks so i will be getting a chushed 1G BOV and im getting a intake. could u draw up a diagram like the one u just did with where to hook up my lines to?
 
i got it to work now OMG i didnt know there was a factory boost cont. to keep it at 11psi but now i do and got mine working thaks everyone who put up with me:rocks:
 
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