boost gone..... Again!
#1
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boost gone..... Again!
Starting to get peeed off now.
Only boosting at .6 bar. Should be more like 1 bar as usual.
Checked everything. It lasted a week then went back to normal for a week. Now it's back .... AGAIN!
I tried taking off the vac pipe to the actuator and it went past the 1 bar mark. Feathering the throttle as to not overboost.
Put the pipe back on and hey presto... 0.6 bar.
I'm thinking actuator nackered!
Any suggestions???
Only boosting at .6 bar. Should be more like 1 bar as usual.
Checked everything. It lasted a week then went back to normal for a week. Now it's back .... AGAIN!
I tried taking off the vac pipe to the actuator and it went past the 1 bar mark. Feathering the throttle as to not overboost.
Put the pipe back on and hey presto... 0.6 bar.
I'm thinking actuator nackered!
Any suggestions???
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Ok cool bud.
Tried everything possible. Cleaned out boost solenoid, vac pipes. Checked for leaks and split pipes. There's no smoke or funny noises. Cars a v4 type r. It runs sweet as, apart from the low boost. I had this problem about 5 months back also. Lasted for a week. Then till 2 weeks back it was boosting fine. Pulled like a train. It's starting to get on my **** now lol. Don't know what else to check.
Tried everything possible. Cleaned out boost solenoid, vac pipes. Checked for leaks and split pipes. There's no smoke or funny noises. Cars a v4 type r. It runs sweet as, apart from the low boost. I had this problem about 5 months back also. Lasted for a week. Then till 2 weeks back it was boosting fine. Pulled like a train. It's starting to get on my **** now lol. Don't know what else to check.
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I put a manual valve on mine and bypassed the solenoid. If yours boosts past 1 bar with no pipe on then it sounds like your soleniod is not functioning properly. Either refit another or get a manual valve.
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Right. So I've put my new actutor on an still only .6 bar.
Done a power probe test on the boost solenoid an that works fine. I'm really stumped now.
Literally can't think of anything else! Tried to run diagnostics an it couldn't read it due to some electrical device in the car!
All I have is an upgraded head unit.
Any more suggestion would be welcomed guys!
Done a power probe test on the boost solenoid an that works fine. I'm really stumped now.
Literally can't think of anything else! Tried to run diagnostics an it couldn't read it due to some electrical device in the car!
All I have is an upgraded head unit.
Any more suggestion would be welcomed guys!
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Right. So I've put my new actutor on an still only .6 bar.
Done a power probe test on the boost solenoid an that works fine. I'm really stumped now.
Literally can't think of anything else! Tried to run diagnostics an it couldn't read it due to some electrical device in the car!
All I have is an upgraded head unit.
Any more suggestion would be welcomed guys!
Done a power probe test on the boost solenoid an that works fine. I'm really stumped now.
Literally can't think of anything else! Tried to run diagnostics an it couldn't read it due to some electrical device in the car!
All I have is an upgraded head unit.
Any more suggestion would be welcomed guys!
Even though you have tested it still could be faulty.
Last edited by Baz82; 06 April 2012 at 08:19 PM.
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Ok. Been having a look for boost duty solenoids an I can't find one that matches the one I have in the car at the moment. Could it be the other parts of the boost system?
i.e not the actual 3 port, but the other electrical connectors?
The part numbers I have seen for them end in 12 and 13.
Mine ends in 190, if this is any help.
i.e not the actual 3 port, but the other electrical connectors?
The part numbers I have seen for them end in 12 and 13.
Mine ends in 190, if this is any help.
#12
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Oh yeah. I fitted an hks filter and stainless induction pipe. That's when the boost went down. After about 20 miles of driving. Still have the orange label maf in so I don't see why this would be the cause.
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In your first post you mention removing the vac line from the actuator and the boost was rising past 1bar.
This means your boost solenoid is not bleeding of any air off when piped up ,to keep the actuator closed, there fore its opening at the actuator own pressure which is 0.6bar.
Even put a manual boost controller on and you'll see.
I dont know what you are getting at mentioning duty cycles because the way your car is behaving the solenoid is doing nothing.
I have an after market boost controller ,If I turn it OFF the boost is actuator pressure.
Can you swap out a solenoid with someone? Or bring the car to a specialist
This means your boost solenoid is not bleeding of any air off when piped up ,to keep the actuator closed, there fore its opening at the actuator own pressure which is 0.6bar.
Even put a manual boost controller on and you'll see.
I dont know what you are getting at mentioning duty cycles because the way your car is behaving the solenoid is doing nothing.
I have an after market boost controller ,If I turn it OFF the boost is actuator pressure.
Can you swap out a solenoid with someone? Or bring the car to a specialist
#19
As said above with the actuator un-plumbed the car makes 1 bar plus so you know the mechanical side of things is fine. The only 2 things it could be is the solenoid or the ECU telling the solenoid to stay closed for what ever reason. ( limp mode because the ECU is not happy with some thing? )
Last edited by redace; 13 April 2012 at 12:44 AM. Reason: sorry the bear1986 mist your post.
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I told you it wasnt the actuator mate , if you and to keep asking for advice and not listening plus throwing money away on parts you dont need go ahead.
See post below, probably more helpful lol
See post below, probably more helpful lol
Last edited by Baz82; 13 April 2012 at 02:31 PM.
#23
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Also check that your car is not in diagnostic mode. There is black and green plugs under the dash on the drivers side, that should be disconnected , if you find they are connected the car is in diagnostic mode causing the boost only to reach actuator pressure.
Here's is a guiden to stop you going round in circles:
Scroll down to Classic Ecu reset shows a pic of the connectors your looking for.
http://www.scoobypedia.co.uk/index.p...ledge/ECUReset
Here's is a guiden to stop you going round in circles:
Scroll down to Classic Ecu reset shows a pic of the connectors your looking for.
http://www.scoobypedia.co.uk/index.p...ledge/ECUReset
#24
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Just put my standard air box back on and it boosts as it should. 1bar. Thinking I should by my mods all at once then re-map. Hopefully that will help.
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