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Vauxhall Corsa Z13DTJ 2007 - Code P0234 over boost #

Posted by GARY HILL on April 25, 2016, 8:04 pm

Year of Manufacture *: 57
Engine Size and Code *: Z13DTJ
( Optional ) Scanner Used: MODIS
( Optional) Fault Codes: PO234

VEHICLE CAME IN WITH A HIGH BOOST CODE P0234. FOUND SEIZED ACTUATOR ARM SEIZED ON TURBO.SORTED THAT OUT.CAR DRIVE S DOWN ROAD GOES INTO LIMP MODE.AND PO234 COMES BACK ON. MAP SENSOR TESTED OK BUT ALSO CHANGED, STILL NO LUCK. TESTED VOLTAGE ON MAP 5V VACUUMS GAUGED IT SEEMS OK. ANY IDEAS ?

Re: VAUXHALL CORSA 13 DTI

Posted by aidan birley <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT2879' width='330' height='300' border=0 style='border:none;'> on April 26, 2016, 8:24 am, in reply to "VAUXHALL CORSA 13 DTI"
Aidan Birley

Hi Gary

How did you fix the turbo fault ? is the pressure capsule and pipe work good?

would be best to measure actual manifold pressure on road test to prove area of concern

Aidan

P.S. knock the capital lock off please

Re: VAUXHALL CORSA 13 DTI

Posted by Shane gray <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3442' width='330' height='300' border=0 style='border:none;'> on April 26, 2016, 8:46 pm, in reply to "Re: VAUXHALL CORSA 13 DTI"
Shane Gray

Hi,
What's live data telling you? What does boost pressure hit before trigging code ? I,m sure these are variable vane turbos, could it be sticking?
Shane

Re: VAUXHALL CORSA 13 DTI

Posted by Gary Hill <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3954' width='330' height='300' border=0 style='border:none;'> on April 26, 2016, 9:07 pm, in reply to "Re: VAUXHALL CORSA 13 DTI"
Gary Hill

New turbo fitted.Did not want to mess round trying to free actuator arm so fitted new one.I will check pressure on road and post back.
One thing i did notice on live data Atmospheric pressure reading 0 but atmospheric sensor reads about 1.8 volts? Not sure where the sensor for Atmospheric pressure is on this vehicle.possible MAF?

Re: VAUXHALL CORSA 13 DTI

Posted by Andrew Pethig on April 26, 2016, 10:24 pm, in reply to "VAUXHALL CORSA 13 DTI"
Edited by board administrator April 28, 2016, 2:29 pm

what type of turbo is it, and how is it controlled ?

if the turbo is unable to dump its boost or the controls for a variable geometry turbo are faulty , then you will have too much boost,

i would look at the turbo control side .

there are some good videos on youtube on VGT, and garrett vs borg warner as they are all controlled in different ways.

Re: VAUXHALL CORSA 13 DTI

Posted by Craig Thompson <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3722' width='330' height='300' border=0 style='border:none;'> on April 26, 2016, 10:33 pm, in reply to "Re: VAUXHALL CORSA 13 DTI"
Craig Thompson

I'm sure the Atmospheric pressure sensor built into ecu. I had a corsa a while back with water damage. If I remember correctly It was sent for repair and when it came back and refitted it started logging fault codes relating to boost plausibility, the Atmospheric pressure reading was at 0. It was resent to repairer and when it came back the pressure was still reading 0 but it never logged a boost plausibility code again.

Re: VAUXHALL CORSA 13 DTI

Posted by Shane Gray <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3442' width='330' height='300' border=0 style='border:none;'> on April 27, 2016, 8:08 am, in reply to "Re: VAUXHALL CORSA 13 DTI"
Shane Gray

Morning,
Also do a smoke check on all inlet pipes, for some reason you get over boost codes for under boost

.
Shane

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