|
S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
Information |
|
Boost IssueViews : 10345 Replies : 162Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Aug 9th, 2012, 15:36 | #21 |
Senior Member
Last Online: Feb 13th, 2024 10:07
Join Date: Aug 2009
Location: UK
|
Decided on thing to try is to to buy and replace the recirculation valve with a proper blanking plate incase that is letting boost leak at higher revs.
|
Aug 9th, 2012, 15:55 | #22 | |
Premier Member
Last Online: Dec 28th, 2022 12:25
Join Date: Jun 2009
Location: Mercville
|
Quote:
One thing is that i get annoyed with is the car is going great but then the battery is disconnected for one reason or another and the ECU has to get used to your driving manner again when you connect up again. It seems to sus out what you do and give you the best it can but unfortunetly you have to wait for so many cold start`s etc. Why don`t you disconnect the battery overnight remembering the radio code and then in the morning see what happens as the ECU should of reset itself properly and it should react different until used to your driving style. It is only a chance but cost`s nothing.
__________________
Mercedes C320CDI Sport Estate 3 litre V6 7 Gear Auto Remap 290bhp 628Nm torque @ 1600revs 45.1mpg |
|
The Following User Says Thank You to 960kg For This Useful Post: |
Aug 9th, 2012, 16:10 | #23 |
Senior Member
Last Online: Feb 13th, 2024 10:07
Join Date: Aug 2009
Location: UK
|
Will give that a try thanks and fit my new blanking plate then test again
next after that i will replace the bcv as not mega bucks hopefully it'll be sorted then will update |
Aug 9th, 2012, 16:41 | #24 |
Premier Member
Last Online: Oct 25th, 2020 06:40
Join Date: Jun 2011
Location: Dover
|
I thought I'd add it's not just boost pressure at the actuator that opens the wastegate. The exhaust back pressure inside the turbine housing is also trying to push the wastegate flapper open from the inside. As revs rise, exhaust back pressure in the turbine housing also rises. If you have a weak actuator spring being opened due to back pressure, this will be evident above a certain point in the rev range.
May be way of the mark but it's another consideration =)
__________________
855R, Standard, Manual, Black Interior. Nice. Stage 5 Saab 9-3 Aero V6 2.8T. 372bhp. 677nm. |
Aug 9th, 2012, 17:38 | #25 | |
Premier Member
Last Online: Dec 28th, 2022 12:25
Join Date: Jun 2009
Location: Mercville
|
Quote:
Don`t please go ebay at £22!!
__________________
Mercedes C320CDI Sport Estate 3 litre V6 7 Gear Auto Remap 290bhp 628Nm torque @ 1600revs 45.1mpg |
|
The Following User Says Thank You to 960kg For This Useful Post: |
Aug 9th, 2012, 17:42 | #26 |
Senior Member
Last Online: Feb 13th, 2024 10:07
Join Date: Aug 2009
Location: UK
|
got one on order from RUFE as with mileage on car be worth changing over anyway. £48 ish including delivery.
Whats the best way to test the wastegate is working correctly ? |
Aug 9th, 2012, 18:10 | #27 |
Premier Member
Last Online: Oct 11th, 2012 08:49
Join Date: Jun 2010
Location: manchester
|
I have 2 if you need one.One from a phase 1 and phase 2
__________________
I said a 10 second car not a 10 minute car Chipped and rolling roaded at 221.9 hp at std boost Horns relocated for better air flow with a Horn from a Vag,Coil overs fitted |
The Following User Says Thank You to T4Rick For This Useful Post: |
Aug 9th, 2012, 18:15 | #28 |
Senior Member
Last Online: Feb 13th, 2024 10:07
Join Date: Aug 2009
Location: UK
|
|
Aug 9th, 2012, 18:33 | #29 |
Premier Member
Last Online: Oct 11th, 2012 08:49
Join Date: Jun 2010
Location: manchester
|
I was on about bcs but your sorted now lol
__________________
I said a 10 second car not a 10 minute car Chipped and rolling roaded at 221.9 hp at std boost Horns relocated for better air flow with a Horn from a Vag,Coil overs fitted |
Aug 9th, 2012, 18:38 | #30 | |
Premier Member
Last Online: Oct 25th, 2020 06:40
Join Date: Jun 2011
Location: Dover
|
Quote:
To test if it's your BCS thats dud and not the actuator, bypass the bcs with a MBC, adjust the MBC as necessary and see if you still have the same problem. If the problem goes, it's the BCS, if it doesn't it's the actuator. Be careful if you use a MBC and start at the lowest setting.
__________________
855R, Standard, Manual, Black Interior. Nice. Stage 5 Saab 9-3 Aero V6 2.8T. 372bhp. 677nm. Last edited by mitchyboy01; Aug 9th, 2012 at 18:49. |
|
The Following User Says Thank You to mitchyboy01 For This Useful Post: |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|