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Code 6805

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Old Dec 3rd, 2013, 09:52   #1
Mark mc
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Last Online: Dec 8th, 2018 18:50
Join Date: Oct 2013
Location: Chorley
Default Code 6805

Morning.

Engine service required warning came up on dash this morning. Took it to local garage and they hooked it up to a general diagnostics reader and the following code came up

6805 boost pressure control
Faulty flow - intermittent

I had a new turbo and intercooler fitted about 20K ago and has run well since.

Is this an urgent must see to? I'm driving to Germany over Christmas - about 1800 miles round trip!!

Mark.
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Old Dec 3rd, 2013, 16:42   #2
adieu
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Last Online: Feb 5th, 2021 19:07
Join Date: Dec 2002
Location: swindon
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try searching google i found this :
From VADIS :
P0234 = ECM-6805 Turbocharger (TC) control valve. Pressure too high. Permanent/Intermittent fault, B5244T3
Diagnostic trouble code (DTC) information
Condition
If engine speed (RPM) is above 3500 rpm and the engine is operating at a
high load, and if the boost pressure (from the boost pressure sensor)
is higher than a designated value, which at maximum boost pressure is
approximately 20 kPa (2.90 psi) above normal boost pressure, this is
interpreted as a fault and diagnostic trouble code (DTC) ECM-6805 is
stored.
Substitute value
reduced boost pressure
Possible source
* hoses between turbocharger (TC) and turbocharger (TC) control valve
respectively turbocharger (TC) control valve and pressure servo are
loose or are blocked/damaged
* faulty turbocharger (TC) control valve
* faulty boost pressure control (BPC) valve pressure servo
* sticking boost pressure control (BPC) valve
Fault symptom[s]
none


Not sure if that helps or not.
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A turbo: Exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster
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