Electronic boost controller help
08 October 2007, 10:26 AM
#31
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btw don't worry about the restrictor, if u want to know where it is. then remove the outlet hose. the one which goes from the solonoid to the turbo actuator. the restirctor is inside this hose. mine has been removed as per my set-up.
08 October 2007, 05:23 PM
#32
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djquest thanks for your help, your a star.
Problem is ive cleaned the standard solenoid and with the green plugs connected and only clean brake cleaner comes out (fires out) the actuator port, also the restrictor on mine is not in the actuator hose, its in the intake hose (the south facing hose on the solenoid). but if you can take any pictures they would be perfect.
Oh and yes my new solenoid is the blue type with the turbo hose connected to port 3 and the acuator hose connected to port 2. but again thanks for your help
Problem is ive cleaned the standard solenoid and with the green plugs connected and only clean brake cleaner comes out (fires out) the actuator port, also the restrictor on mine is not in the actuator hose, its in the intake hose (the south facing hose on the solenoid). but if you can take any pictures they would be perfect.
Oh and yes my new solenoid is the blue type with the turbo hose connected to port 3 and the acuator hose connected to port 2. but again thanks for your help
08 October 2007, 10:30 PM
#34
09 October 2007, 04:10 PM
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on the back of my new boost controller there is a port for vacuum pressure which i have t'd into the pipe coming from the top of the original solenoid to the intake manifold.
there is also a wiring harness which connects to ignition, ground, and perm-live, there is a clip coming from this which push fits to the wires connected to an under-bonnet mounted boost solenoid.
The solonoid has three ports, one which connects to the actuator (i used silicone hose) and one connects to the turbo (i used silicone hose) the third is left empty.
I removed the actuator and turbo pipes from the original solenoid and have left it connected to stop a fault code appearing.
To set boost there are two dials on the front of the controller (one labled high, and one low) with a select button, you choose which dial to use with the select button the push the dial and it pops out so you can turn it up (turning it up is supposed to raise boost) when set you push it back in.
So the first dial (low) is supposed to be set at say 0.5bar, the second (hi) at maybe 1bar.
My problem is i turn up the dials and nothing happens, i have tried using a different intake manifold vacuum hose, i have tried cleaning out the new solenoid, i have tried doing an ecu reset, i have checked for leaks and nothing Nada, I have also tried connecting the solenoid straight to the battery but i dont get any clicking or anything
I have connected all back up to normal and tried to clean out my original solonoid because it was only producing 0.5bar before and nothing, still 0.5bar.
I have tried an ecu reset, excessive cleaning with the green connectors connected, and again nothing nada.
Anybody any ideas?
Personally i think the new solenoid is knackered, but why wont the car boost to 0.8bar with the original solenoid?
any help will be appreiciated
there is also a wiring harness which connects to ignition, ground, and perm-live, there is a clip coming from this which push fits to the wires connected to an under-bonnet mounted boost solenoid.
The solonoid has three ports, one which connects to the actuator (i used silicone hose) and one connects to the turbo (i used silicone hose) the third is left empty.
I removed the actuator and turbo pipes from the original solenoid and have left it connected to stop a fault code appearing.
To set boost there are two dials on the front of the controller (one labled high, and one low) with a select button, you choose which dial to use with the select button the push the dial and it pops out so you can turn it up (turning it up is supposed to raise boost) when set you push it back in.
So the first dial (low) is supposed to be set at say 0.5bar, the second (hi) at maybe 1bar.
My problem is i turn up the dials and nothing happens, i have tried using a different intake manifold vacuum hose, i have tried cleaning out the new solenoid, i have tried doing an ecu reset, i have checked for leaks and nothing Nada, I have also tried connecting the solenoid straight to the battery but i dont get any clicking or anything
I have connected all back up to normal and tried to clean out my original solonoid because it was only producing 0.5bar before and nothing, still 0.5bar.
I have tried an ecu reset, excessive cleaning with the green connectors connected, and again nothing nada.
Anybody any ideas?
Personally i think the new solenoid is knackered, but why wont the car boost to 0.8bar with the original solenoid?
any help will be appreiciated
09 October 2007, 09:37 PM
#38
09 October 2007, 09:55 PM
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there at the two vac hose connections on the turbo.. connect just a single pipe to both and see what boost you get.. ie. no control at all.. should just be actuator pressure around 0.5bar.
if you look at the actuator (cylinder with vac line connection on top of turbo) there should be a bar coming out the back which runs to the wastegate.. check it is tight etc.. the circlip can come off and then the wastegate flaps open when it likes.
if you look at the actuator (cylinder with vac line connection on top of turbo) there should be a bar coming out the back which runs to the wastegate.. check it is tight etc.. the circlip can come off and then the wastegate flaps open when it likes.
09 October 2007, 10:00 PM
#41
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i ran the car once without any pipes connected to the turbo or actuator to answer somebodys question about the actuator and it went past 0.5bar and onto what felt like the fuel cut at between 7.5 - 0.9bar. it flew without any restrictions,
And the wasgate arm is fine with the circlip still connected at the bottom end
And the wasgate arm is fine with the circlip still connected at the bottom end
11 October 2007, 11:11 AM
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Call me crazy (
) but doesn't the old device which still has the ecu wiring connected look like a solenoid on its own? 
Bit stab in the dark I agree as I've not seen that model solenoid before....
Plus you've still got "plumbing" into it?
Anyone?
) but doesn't the old device which still has the ecu wiring connected look like a solenoid on its own? Bit stab in the dark I agree as I've not seen that model solenoid before....
Plus you've still got "plumbing" into it?
Anyone?
11 October 2007, 11:44 AM
#50
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Ignore where the blue hose connects to the old solenoid on the second picture, thats just how ive been having it until ive sorted out the fault.
Instead concentrate on it connected to the new solenoid in picture 3, leaving the old one redundant as per picture 4, the only other pluming i have into it is the one from the intake manifold which to my knowledgeis supposed to stay there
Instead concentrate on it connected to the new solenoid in picture 3, leaving the old one redundant as per picture 4, the only other pluming i have into it is the one from the intake manifold which to my knowledgeis supposed to stay there
11 October 2007, 02:28 PM
#51
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Hmm, well, I was talking about the black pipes marked 350 and 320 in pic 2 - that unit itself looks like a solenoid and you have a bigger one below (could be wrong mind). Anyway, if that black pipe just goes to induction, just disconnect it and block off the induction hole.
So...Looks like you have a "simple" two port solenoid with a boost controller all of which wired so that it works on its own, no feed from Ecu - fine. This new solenoid has been checked? Its this you need to put +/_ terminals from battery on and see if she clicks, if not, its duff.
So...Looks like you have a "simple" two port solenoid with a boost controller all of which wired so that it works on its own, no feed from Ecu - fine. This new solenoid has been checked? Its this you need to put +/_ terminals from battery on and see if she clicks, if not, its duff.
11 October 2007, 05:41 PM
#52
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yep that was my guessing to, looks like its a dead solenoid. problem is when connected back up to the factory setup as per picture 2, im still only getting 0.5bar boost, why? any ideas
12 October 2007, 10:15 AM
#53
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I cant answer that one but wouldn't worry chap since when you run with no solenoid, ie boost control, the actuator is working and you're getting decent boost - so turbo and actuator are good to go. Fix - get replacement 2 port solenoid.
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