Petrol Diagnostics

Post a Response

Corsa D 1.2 Z12XEP 2007 - Oil in connection plugs #

Posted by Steve Straw on March 11, 2014, 2:03 pm

Year of Manufacture *: 2007
Engine Size and Code *: z12xep

Got A corsa with eml light on, various codes fuel trim and lambda sensor circuit faults, upon unplugging the plugs there is an amount of oil in the plugs, oil had a look in others plugs cam sensor also has oil in the connections.

I'm assuming oil getting in to the loom via capillary action anybody else had this ?

Just going to have a look at ECU plug.will post back.

The oil switch is damp as per normal on these.

Cheers

Stephen

Re: Corsa D oil in connection plugs

Posted by Steve Straw <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3500' width='330' height='300' border=0 style='border:none;'> on March 11, 2014, 2:36 pm, in reply to "Corsa D oil in connection plugs"
Stephen Straw

Can confirm ecu multiplug full of oil, spoke to local dealers and they confirm issue.

Their fix, new loom(s)
Clean out sensors and ecu.

I assume the oil has fill the lambda sensors with oil so they are not able to get a good reference of external air.

On a plus side the rubber insulators in the connections do a good job.

Steve

Re: Corsa D oil in connection plugs

Posted by Adam critchley <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=ukat3657' width='330' height='300' border=0 style='border:none;'> on March 11, 2014, 11:31 pm, in reply to "Re: Corsa D oil in connection plugs"
Adam Critchley

Had this before

Oil pressure switch leaks and oil capillaries down wire

Re: Corsa D oil in connection plugs

Posted by Simon Forsey <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5231' width='330' height='300' border=0 style='border:none;'> on March 16, 2014, 1:33 am, in reply to "Re: Corsa D oil in connection plugs"

Hi

I second what Adam says. Had the same myself

Simon

Re: Corsa D oil in connection plugs

Posted by Leo Dack on April 26, 2014, 10:52 pm, in reply to "Re: Corsa D oil in connection plugs"
Edited by board administrator May 1, 2014, 8:49 am

Seen a few of these. We wash out ECU and harness. Replace which ever lambda sensors are flagging fault codes. Fit new oil pressure switch and remove the rubber insulator so if it fails again the same wont happen.

Also remove rubber insulator from No2 lambda sensor (As it's the last sensor in the loom) and bend the bracket to allow any remaining oil to work it's way out before going into the sensor.

« Back to index

[ Petrol Diagnostics ]