Turbo Electrovalve
Moderator: RichardW
Turbo Electrovalve
Just a quick question what does the turbo electro valve do as I disconnected mine and it made no difference to the running of the car Cheers Ian
Thanks Ian
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djadams
- (Donor 2020)
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Re: Turbo Electrovalve
Depending on what car we're talking about here it allows the control of the wastegate (old diesel/most petrol turbos) or the variable geometry (variable nozzle) vanes in a more modern/high tech diesel.
If it didn't make any difference, there must be something up - most turbos will default to safe condition (wastegate or vanes fully open, minimum boost) when control fails.
If it didn't make any difference, there must be something up - most turbos will default to safe condition (wastegate or vanes fully open, minimum boost) when control fails.
2000 Xantia Activa 2.0 TCT (Danowned Activa 
daily driver)
1968 DS21 Pallas BVH (high days and holidays)
daily driver)1968 DS21 Pallas BVH (high days and holidays)
Re: Turbo Electrovalve
Sorry about the lack of info its a 2001 C5 2.2 if the vanes were fully open would the turbo be louder than normal by that i mean they all have a bit of a swish to them but mine is a lot louder with very limited boost ,thanks for your reply I have had this fault for some time now and just cant find the cause Regards Ian
Thanks Ian
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Monkeyfeet
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Re: Turbo Electrovalve
If there's no vacuum on the turbo it should be at full boost. The greater the vacuum the less it should boost. Maybe your's is stuck on semi boost? Might be worth a look at the turbo linkages maybe. Full boost permanently should throw an alarm btw. I agree that you should notice a difference in it
XantiaTD's(all gone). BXGTi, sold (sob). C5 2.2Hdi SE Exc Hatch. C5 2.2 Estate auto. Xsara Hdi estate. Yam YZF750, Zoom. GSX-S750, mmm.
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waynedance
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Re: Turbo Electrovalve
May I ask if stuck at full boost would that mean top end power but non low at low speed?
Volvo S80 D5.........
C5 2.2HDi Exclusive 2003 manual (now gone).
2009 Renault Megane, the misses drive.
Had a 1988 BX 19TRS Auto many moons ago.
Forgive any spelling mistakes, it's the phone not me.
C5 2.2HDi Exclusive 2003 manual (now gone).
2009 Renault Megane, the misses drive.
Had a 1988 BX 19TRS Auto many moons ago.
Forgive any spelling mistakes, it's the phone not me.
Re: Turbo Electrovalve
I believe that is the case but mine is playing up and I am trying to go through things one at a time to try and ascertain where my fault is as I have said in previous posts it sounds like air is either blowing by or leaking I have checked for leaks and have not found any so now I am checking other avenues this all started when I changed the swirl diaphragm.Thanks Ianwaynedance wrote:May I ask if stuck at full boost would that mean top end power but non low at low speed?
Thanks Ian