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850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models |
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Orange flashing arrow - T5R auto - HelpViews : 1865 Replies : 32Users Viewing This Thread : |
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Sep 10th, 2021, 21:21 | #31 |
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I have replied on your other thread.
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2001 V40 2.0lt Sport Lux - Daily Driver. 178k miles. 2003 C70 2.4 GT Convertible - Garage Queen. 67k miles. http://www.neptuno6benagil.com |
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Sep 10th, 2021, 21:37 | #32 |
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Location: Maidstone, Kent (But Yorkshire born & bred)
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Based on the fact the vacuum pipes looked and felt original and with original spring clips I can assume the boost control valve is original too so at 173k it’s probably long past it’s best.
Maybe just bite the bullet and order a new one! I did give a squirt of carb cleaner so that may have buggered it up completely or free’d the internal bits. Tomorrow will tell me more. I’ve had enough for tonight |
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Sep 11th, 2021, 22:39 | #33 |
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Update:
A lengthy drive out today and no reoccurrence of the flashing arrow so I’m going to take that as a win!
The throttle body cleaning and fettling I think sorted that drama. However the lack of boost is still a pain in the arse. Can anyone advise regarding the turbo control valve….. if I blow through the yellow or red ports should I feel airflow though the other port? Or is it’s default to be closed off? I’ve removed mine and blown through it but the flow is so little that I could barely get any air through it. I can’t remember if I was blowing through red or yellow but it was very restricted. Anyone got any clues or do I just buy a new one? My boost according to the stock gauge is about 1/5 in to the white zone if that. All vacuum lines from turbo to boost control valve are now silicone 5mm hoses and are clamped securely. Last edited by Pupbelly; Sep 11th, 2021 at 22:42. |
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