HELP! BOOSTING TO ANYTHING??
#1
HELP! BOOSTING TO ANYTHING??
hey any help would be great as trying to sel my car, whats happening its just boosting to whatever i want until it cuts out with a big bang where its reached stupid boost pressure like 2 or 3 bar, its like my boost keeps adjusting itself but now where it use to reach 0.8 bar its like the restricor whatever stops the boost at 0.8 bar has gone and its just boosts to where i want?
any ideasss..?
any ideasss..?
#2
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Check the pipe going to your actuator, sounds like its split or come off. Also worth looking at the pipes going to your boost solanoid.
Last edited by Turbo Tez; 15 December 2010 at 10:22 PM.
#3
hey any help would be great as trying to sel my car, whats happening its just boosting to whatever i want until it cuts out with a big bang where its reached stupid boost pressure like 2 or 3 bar, its like my boost keeps adjusting itself but now where it use to reach 0.8 bar its like the restricor whatever stops the boost at 0.8 bar has gone and its just boosts to where i want?
any ideasss..?
any ideasss..?
https://www.scoobynet.com/general-te...lp-advice.html
#4
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#8
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As above.
A good way to cheack for this is with a smoke tester...they are pretty pricey, but they are superb for this kind of job, so if you know somebody who has access to one its worth trying, as it makes finding leaks very easy to spot.
A quick acutator test can be done by taking the vacuum hose direct from the actuator to the turbo outlet (no T pieces, restrictors, solonoid etc) This eliminates the rest of the boost control system and the car should run at around 0.5 bar max (the purge solonoid and other pipework etc is what makes it run at higher boost).
Avoid driving the car hard and at high Rpms with it in its present condition until its sorted, as it will very quickly wreck the engine (if not already - from excessive bearing wear, due to them being overloaded).
A good way to cheack for this is with a smoke tester...they are pretty pricey, but they are superb for this kind of job, so if you know somebody who has access to one its worth trying, as it makes finding leaks very easy to spot.
A quick acutator test can be done by taking the vacuum hose direct from the actuator to the turbo outlet (no T pieces, restrictors, solonoid etc) This eliminates the rest of the boost control system and the car should run at around 0.5 bar max (the purge solonoid and other pipework etc is what makes it run at higher boost).
Avoid driving the car hard and at high Rpms with it in its present condition until its sorted, as it will very quickly wreck the engine (if not already - from excessive bearing wear, due to them being overloaded).
Last edited by ALi-B; 17 December 2010 at 11:13 AM.
#12
https://www.scoobynet.com/general-te...wrx-wagon.html
Look at the first page in this link. There is a picture of the hose connections. Check all of these, trace them back to check both ends of every hose.
I'd be surprised if it was anything else.
Look at the first page in this link. There is a picture of the hose connections. Check all of these, trace them back to check both ends of every hose.
I'd be surprised if it was anything else.
#13
they all look ok tho im sure if there was a split or something i would be hard to pin point anyway is there an easy soloution maybe spraying some leak detector on the pipes seeing if any bubbles appear....????
#17
where can i get that from buddy? will subaru stock that even tho mine being a wrx import..? also do i need to change intercooler hose and dump valve hoses do you think guys...?
thanks
thanks
#18
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Changing your boost pipes to silicone is a worthwhile upgrade but not essential, if the were faulty it would not give the sympoms you have. As we have already said it sounds like your actuator isnt doing its job properly which would be caused by a fault on one the pipes you have been checking. Where you based by the way?
#19
Changing your boost pipes to silicone is a worthwhile upgrade but not essential, if the were faulty it would not give the sympoms you have. As we have already said it sounds like your actuator isnt doing its job properly which would be caused by a fault on one the pipes you have been checking. Where you based by the way?
Personally I don't think you need to go to trouble of changing them. Just check them over and make sure they are all connected as they should be (as in the picture I linked to) and move on to the next thing.
You could try a dawes valve or similar to rule out the BCS though, but you will also need a boost gauge so you can see what you are doing. If the Dawes does solve the problem it is only masking the problem and you should still find the fault.
More importantly DO NOT drive the car whilst it is overboosting or you could do some serious damage. If you are not confident take it to a Subaru specialist, it may not cost a lot at all to fix.
Last edited by dan83590; 17 December 2010 at 07:06 PM.
#20
thanks dan for all that, im only driving in low revs and i have a boost gauge so im makeing sure i dont boost over .7 bar , ive found someone else now who lives by me who is breaking a L REG wrx so im going to have his pipes off of there and maybe take the solonoid aswell, if this doesnt cure tho what else could it be i thought this is all it could be matey....?
im in essex clacton on sea guys.
im in essex clacton on sea guys.
#21
If those second hand parts are in good working order and they do not fix the fault borrow the ECU as well whilst it is easy to get at one for a loan and try that to just to rule out something else. A bit of a shot in the dark but you never know!!
I forgot to ask before. Have you checked for error codes?
Defo have the whole lot from him. There should be a bracket that holds all of the sensors together, take all of it.
I forgot to ask before. Have you checked for error codes?
Defo have the whole lot from him. There should be a bracket that holds all of the sensors together, take all of it.
Last edited by dan83590; 17 December 2010 at 07:27 PM.
#22
yea will do then matey! ive not had any engine lights come on and no error codes stored is it worth me changing the dump valve hoses as well as i have a bailey dump valve what do you think dan..?
thanks mate
thanks mate
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