V50 Engine 2.0D : - Boost pressure too high

martins91 · Apr 15th, 2019, 13:45

Switched car to vida. It showed error-boost presure too high. When driving, around 3k revs it shows engine needs service. Where to find solution?

AndyV7o · Apr 15th, 2019, 21:49

Sounds like sticky vanes in the turbo. Needs a good clean, not a can of crap in fuel or intake, an actual clean, Mr Muscle foaming oven cleaner dissolves the carbony crud.

martins91 · May 2nd, 2019, 07:21

Could someone explain which one is solenoid and which one is actuator?

Tonypilk · May 2nd, 2019, 10:54

Re the picture, both are identical components but no 1 is referred to as the Turbo Control Valve (TCV) and no2 is the 'Anti Stutter Valve. Both are solenoids.

I had similar issues to yours (variety of codes - P2263, P0234, P2035) but replacing the TCV (£40) made no difference. I'd start by checking all vacuum lines for leaks. Apart from the TCV, I replaced the MAP sensor - whose full title is MAP and Boost sensor (£9). The throttle body was coated in oil/crud so cleaned that and the Temperature sensor too. Car ran better but still jerking / limp mode. Gave up trying to reach the Anti Stutter Valve!

In desperation, took it to an indy Volvo garage. VIDA checks showed not fuel or turbo issues (relief) so they used a smoke generator to check the vacuum hoses and found a small leak where the intercooler pipe joins the throttle body. Car now ok. Garage bill £125 but they not only worked on it for longer than they billed me, they also did a full road test including live data check.

cheshired5 · May 2nd, 2019, 11:06

Quote:

Originally Posted by martins91

Could someone explain which one is solenoid and which one is actuator?

In that picture, 1 is a solenoid and 2 looks like one also.
Solenoid is a general term for a part which uses electromagnetism so for example, a starter motor solenoid uses electromagnetism to move a steel cylinder to bridge the high current contacts to the main starter motor. Relays can be solenoids too.

In the case of a boost solenoid, electromagnetism is used to control an internal rod in order to regulate air/vacuum flow to another component.
A boost solenoid will then be connected to an actuator which in turn moves to control boost levels.
"Boost" solenoids are also used on some cars to control non boost related actuators like an EGR actuator for example.

Apr 15th, 2019, 13:45	#1
martins91 Member Last Online: Nov 23rd, 2019 16:04 Join Date: Mar 2016 Location: liepaja	Boost pressure too high Switched car to vida. It showed error-boost presure too high. When driving, around 3k revs it shows engine needs service. Where to find solution?

May 2nd, 2019, 10:54	#4
Tonypilk New Member Last Online: Apr 17th, 2021 14:47 Join Date: Apr 2019 Location: St Leonards on Sea	Re the picture, both are identical components but no 1 is referred to as the Turbo Control Valve (TCV) and no2 is the 'Anti Stutter Valve. Both are solenoids. I had similar issues to yours (variety of codes - P2263, P0234, P2035) but replacing the TCV (£40) made no difference. I'd start by checking all vacuum lines for leaks. Apart from the TCV, I replaced the MAP sensor - whose full title is MAP and Boost sensor (£9). The throttle body was coated in oil/crud so cleaned that and the Temperature sensor too. Car ran better but still jerking / limp mode. Gave up trying to reach the Anti Stutter Valve! In desperation, took it to an indy Volvo garage. VIDA checks showed not fuel or turbo issues (relief) so they used a smoke generator to check the vacuum hoses and found a small leak where the intercooler pipe joins the throttle body. Car now ok. Garage bill £125 but they not only worked on it for longer than they billed me, they also did a full road test including live data check. Last edited by Tonypilk; May 2nd, 2019 at 10:55. Reason: Missed expanation

Apr 15th, 2019, 21:49	#2
AndyV7o Premier Member Last Online: Jun 21st, 2021 20:47 Join Date: Jun 2018 Location: Creswell	Sounds like sticky vanes in the turbo. Needs a good clean, not a can of crap in fuel or intake, an actual clean, Mr Muscle foaming oven cleaner dissolves the carbony crud.

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