Petrol Diagnostics

Post a Response

Jaguar X-Type 2.5 V6 2003 - Bank 2 running lean - Fixed #

Posted by Carl Ford on November 29, 2009, 7:50 pm

Year of Manufacture *: 2003
Engine Code or CC *: 2.5 V6

Can only scan vehicle through eobd comes up with bank2 lean after a smoke test no leaks found so i scoped o2 sensors. found one 02 sensor to be 3.8v flat line on scope which didnt change as i reved engine. The sensor has no feed so i checked the fuse which is o.k. the fuse does both pre and post cat sensors so for testing purposes put a tempary wire in as the feed wire(from fuse) but still no switching of sensor so replaced sensor just incase sensor was faulty still no joy (not surprised) the heater circuit is also not working even with temp feed wire. what should i test or look for next i can upload any waveforms or tests.

thanks in advance
carl

Re: Jaguar X-Type running lean

Posted by Darren Cotton <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1876' width='330' height='300' border=0 style='border:none;'> on November 29, 2009, 8:36 pm, in reply to "Jaguar X-Type running lean"
Darren Cotton

Carl, Are you sure that was 3.8v and not 0.38v

Can you upload the captures so we can see.

Re: Jaguar X-Type running lean

Posted by Carl Ford on November 29, 2009, 9:11 pm, in reply to "Re: Jaguar X-Type running lean"
Message modified by board administrator November 30, 2009, 1:38 pm

Hi yeah definatly 3.8v I will upload all captures from the faulty bank and the good bank tommorow
Many thanks
Carl

Re: Jaguar X-Type running lean

Posted by carl ford <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT1822' width='330' height='300' border=0 style='border:none;'> on November 30, 2009, 2:37 pm, in reply to "Re: Jaguar X-Type running lean"
Carl Ford

here is the capture of the faulty bank yellow trace is pre cat and green trace is post cat

Re: Jaguar X-Type running lean

Posted by Sanjay Odedra on November 30, 2009, 3:53 pm, in reply to "Re: Jaguar X-Type running lean"
Message modified by board administrator December 1, 2009, 8:15 am

We had one of these mondeo's in drag with the same problem, turned ou to be wiring loom chaffed
at the cyl. head.

Re: Jaguar X-Type 2.5 V6 2003 - Bank 2 running lean #

Posted by Andrew West <iframe src='https://members5.boardhost.com/ukautotalk4/info/user=UKAT5350' width='330' height='300' border=0 style='border:none;'> on December 2, 2009, 1:04 am, in reply to "Jaguar X-Type 2.5 V6 2003 - Bank 2 running lean #"

Hello Carl,
Are you sure it's not a wideband sensor that you are measuring?
Regards,Andrew
Sorry , I mis-read your post

Fixed #

Posted by Carl Ford on December 2, 2009, 6:25 pm, in reply to "Re: Jaguar X-Type 2.5 V6 2003 - Bank 2 running lean #"
Message modified by board administrator December 3, 2009, 2:22 pm

Finally go the lamda sensor problem sorted there is an harneess plug with a 10mm bolt going through it and the feed wire to the lambda was traped but vehicle still flagging a running lean fault but emmisions all ok done another smoke test and the cam cover gasket is leaking on the bank with the breather to the throtle body which just happens to be bank 2 have decided to order gasket as it is only£6 from jaguar and coil seals which are £12 not sure if this will cure my problem as never had a cam cover gasket cause a lean mixture before has anyone else.

Many thanks
Carl

« Back to index

[ Petrol Diagnostics ]