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daimlermg
Member Since: 31 Jan 2010
Location: N Yorks
Posts: 140
  
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Well its happened again .First time it was the throttle pedal, had a new one fitted 3 months ago.
Now it drives to the first hill which is 30 yards away and pops in limp home mode.
A switch off and restart and it will do the same again.
I am just getting a small amount of smoke when I start up for just a few seconds, nothing I have not seen before over the years.
There was a sound like a distant police siren slowing down when I lifted my foot off the throttle when it first happened and the car was warm, testing it now for 100 yards I cant hear it.
Fault codes are
P006A Manifold Absolute Pressure –Mass or Volume Air Flow Correlation (Intermittent )
P1247 Turbocharger Boost Pressure Low
Algorithm Based Failure – Event Information (Intermittent)
P0235 Turbocharger Boost Sensor A Circuit (Intermittent)
Also at the same time 1 mile ago 00BD0720 Invalid Fault code ( intermittent)
Then 100 miles ago P2269 Water in fuel condition
General Signal Failure –Signal is out of Range/Zero Adjustment Failure (Intermittent)
Some codes are mentioned in other posts but the symptoms are not quite the same.
Any clues welcome before I take it to the dealers. Faultmate MSV-2
500,000 plus miles in RR,s and trying for more without breakdowns this time 
Gone Lexus RX400h SE
Past Audi A6 avant Qutro
Toyota Supra
Long line of RR's
Had for 40 years but now gone 1935 Daimler and 1937 MG
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 28th Apr 2013 12:57 pm |
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steveraspberry
Member Since: 18 Sep 2011
Location: Nr Sevenoaks,Kent
Posts: 2081
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Might be a long shot but could it be a sticky turbo actuator? I know Geoff recently sorted this issue and IIRC the symptoms were similar ( But not exactly) as you describe. I'm sure if you give Geoff a shout, he'd be able to at least point you in the right direction. He may have already patented his bespoke tool for this job already though 
Hope this helps?
Best,
Steve  My17 Volvo XC90 Inscription
MY15 Mitsubishi L200 Barbarian
RGK Tiga Fx Wheelchair,
Large Alsation called Abbs
Medium blue Staffie called Piglet
Medium Alsation called Bailey
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| 28th Apr 2013 1:16 pm |
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daimlermg
Member Since: 31 Jan 2010
Location: N Yorks
Posts: 140
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after reading a load more posts is sounds a bit like the post http://www.disco3.co.uk/forum/topic90925.html
A sticking/stuck Turbo Boost Solenoid valve .
If anyone can tell me where it is I will have a look at it.
TIA Faultmate MSV-2
500,000 plus miles in RR,s and trying for more without breakdowns this time
Gone Lexus RX400h SE
Past Audi A6 avant Qutro
Toyota Supra
Long line of RR's
Had for 40 years but now gone 1935 Daimler and 1937 MG
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| 28th Apr 2013 3:55 pm |
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stick
Member Since: 13 Jan 2010
Location: hants
Posts: 604
 
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It happende to me at about 55k miles. In theory you can get to it from above behind the radiator and down but you need very small hands. It is off side near the bottom of engine. In practice, LRA seem to take the cover off inside the front wheel well which allows them to give it a push and free it. You don't need to take the wheel off, but I can't remember if you need a special tool to ge tthe clips off, and I am not by my car. Once freed, if you don't go over 2200 rpm, no more problem. Only thing is, depending on age, might be better to get LRA or dealer to see it as they should fit a new one for you FOC as it is a kinown design fault, the material at the top of the shaft is somehow responsible. d4 HSE
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| 29th Apr 2013 10:07 am |
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daimlermg
Member Since: 31 Jan 2010
Location: N Yorks
Posts: 140
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Thanks for the info.
I took it into the dealer this morning and they think it is the Turbo Boost Solenoid valve and that there is a updated one.
I will report back when its done. Faultmate MSV-2
500,000 plus miles in RR,s and trying for more without breakdowns this time
Gone Lexus RX400h SE
Past Audi A6 avant Qutro
Toyota Supra
Long line of RR's
Had for 40 years but now gone 1935 Daimler and 1937 MG
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| 29th Apr 2013 1:09 pm |
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daimlermg
Member Since: 31 Jan 2010
Location: N Yorks
Posts: 140
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Ok Got the car back and it is fixed.
It was the Tubo Boost Solenoid Valve but they now have a repair kit rather than have to change the whole unit.
Dont know the price yet as it takes a week or two to send me the bill. ( I have an account)
Edit
Cost was £260 inc VAT
Part was LR033284 Kit - Actuator Shut
@ hrs Charged for. Faultmate MSV-2
500,000 plus miles in RR,s and trying for more without breakdowns this time
Gone Lexus RX400h SE
Past Audi A6 avant Qutro
Toyota Supra
Long line of RR's
Had for 40 years but now gone 1935 Daimler and 1937 MG
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| 30th Apr 2013 7:19 pm |
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onetwentie
Member Since: 25 May 2020
Location: West Yorkshire
Posts: 104
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daimlermg wrote:
There was a sound like a distant police siren slowing down when I lifted my foot off the throttle when it first happened and the car was warm, testing it now for 100 yards I cant hear it.
Fault codes are
P006A Manifold Absolute Pressure –Mass or Volume Air Flow Correlation (Intermittent )
P1247 Turbocharger Boost Pressure Low
Algorithm Based Failure – Event Information (Intermittent)
P0235 Turbocharger Boost Sensor A Circuit (Intermittent)
The EXACT same issue I have plus the car is in limp mode. when I took that part off recently, it was pretty much stuck and was very hard to move that actuator arm.
I think you may have just confirmed the fault for me !!
Ps -- that noise like a distant siren is a perfect way of describing it - because the first time I heard it, I was actually looking for an ambulance/police car!
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| 6th Jun 2024 1:49 pm |
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onetwentie
Member Since: 25 May 2020
Location: West Yorkshire
Posts: 104
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So got a used part after work on Friday, and before I even fitted I tried to actuate the arm from the vacuum chamber on the Shut off valve, and I could easily move it..
Needless to say Saturday was straight at the car, removed the fuse for the suspension, jacked it up, axles stands both sides, removed the driver's side front wheel, wheel arch, and wheel arch liner.
Removed the old one, and replaced with the new one. Switched on the ignition to listen to the actuator sound, but only heard that from the passenger side. Revved the car to 3000 rpm, and way and behold NO LIMP MODE  (or RESTRICTED PERFOMRANCE to be correct).
Everything back on, took it for a drive.. and my oh my. How different the car drives when it's normal!
Thank you to all who helped on the forum, and hope this helps someone else too!
peace out.
onetwentie.
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| 9th Jun 2024 8:38 pm |
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