Omega Owners Forum - Crank Sensor?

Vmax Senior Member Offline Missing life on two wheels :( Posts: 669 Waterlooville, Hampshire. Gender: Drives: JAGUAR XJ8 SPORT	Re: Crank Sensor? Reply #15 - 02. Jun 2009 at 09:12 Sorry meant to ask What are bl settings?
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Vmax Senior Member Offline Missing life on two wheels :( Posts: 669 Waterlooville, Hampshire. Gender: Drives: JAGUAR XJ8 SPORT	Re: Crank Sensor? Reply #16 - 02. Jun 2009 at 14:08 My mechanic suspects that I need a new EGR valve to sort the above mentioned probs - What do you think?
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Kevin Wood Global Moderator Admin Team Offline Posts: 20377 Alton, Hampshire Gender: Drives: 3.2 MV6 (LPG), Westfield	Re: Crank Sensor? Reply #17 - 02. Jun 2009 at 14:13 Vmax wrote on 02. Jun 2009 at 14:08: My mechanic suspects that I need a new EGR valve to sort the above mentioned probs - What do you think? Could be suspect but, to confirm, cut out a blanking plate from a piece of coke can and mount it under the valve to block the ports In/Out of the valve, then see how it runs. Kevin
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Vmax Senior Member Offline Missing life on two wheels :( Posts: 669 Waterlooville, Hampshire. Gender: Drives: JAGUAR XJ8 SPORT	Re: Crank Sensor? Reply #18 - 02. Jun 2009 at 14:22 Thanks Kevin, I'll give it a go
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Kevin Wood

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Re: Crank Sensor?
Reply #19 - 02. Jun 2009 at 14:50

.. and if you need a Tech 2 eye cast over it I'd be happy to oblige, of course. Thumbs Up!

Odd that it got worse when the crank sensor was changed. If the EGR doesn't help I wonder if it's worth a squirt of switch cleaner in the crank sensor connector - just in case it's making poor contact?

If that doesn't help, maybe worth swapping back to the old sensor - or was that totally FUBAR?

Kevin

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mathewst Omega Knight Offline Posts: 1499 Split, Croatia Gender: Drives: omega 2.2i 16v	Re: Crank Sensor? Reply #20 - 02. Jun 2009 at 15:02 Kevin what are the main simptoms of a faulty crank sensor? I would gladly do a paperclip test but on my model that is not possible
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Vmax

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Re: Crank Sensor?
Reply #21 - 02. Jun 2009 at 16:24

Thanks again Kevin. I think I see the problem now. The pipe that runs down the drivers side of the block is connected by a piece of rubber hose, this has a big hole in it. The mechanic said he changed the rubber connector last time he looked over it because it had blown. It's gone again so can I assume that this could mean a knackered/blocked EGR valve or could it be a blockage in the pipe? Cheesy

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Vmax Senior Member Offline Missing life on two wheels :( Posts: 669 Waterlooville, Hampshire. Gender: Drives: JAGUAR XJ8 SPORT	Re: Crank Sensor? Reply #22 - 02. Jun 2009 at 16:26 mathewst wrote on 02. Jun 2009 at 15:02: Kevin what are the main simptoms of a faulty crank sensor? I would gladly do a paperclip test but on my model that is not possible Mathewst -My engine would cut out every now and again when I stopped at junctions etc.
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Vmax Senior Member Offline Missing life on two wheels :( Posts: 669 Waterlooville, Hampshire. Gender: Drives: JAGUAR XJ8 SPORT	Re: Crank Sensor? Reply #23 - 03. Jun 2009 at 08:52 Well this is odd. I replaced the burst pipe and tried the EGR off my other Miggy- still the same probs. So I replaced my new crank sensor with the old one and it runs. What is going on here? any ideas please? I'm expecting it to start playing up again. Unusual if the new Vaux sensor is duff eh?
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Vmax

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Missing life on two wheels
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Re: Crank Sensor?
Reply #24 - 03. Jun 2009 at 14:06

Vmax wrote on 03. Jun 2009 at 08:52:

Well this is odd. I replaced the burst pipe and tried the EGR off my other Miggy- still the same probs. So I replaced my new crank sensor with the old one and it runs. What is going on here? any ideas please? I'm expecting it to start playing up again. Unusual if the new Vaux sensor is duff eh? Undecided

The rubber pipe has burst again I ony replaced it last night! Any ideas please chaps ? I used thick rubber hose - I assume it gets hot, do I need a particular type of hose? Stressed! Angry

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Elite Pete Omega King Offline My spider senses are tingling Posts: 17813 Northwich/Chester Gender: Drives: Facelift Wheezel,Breaking 2001 MV6	Re: Crank Sensor? Reply #25 - 03. Jun 2009 at 15:47 If its the rubber hose from the exhaust manifold, it could be blocked cats
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Kevin Wood

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Re: Crank Sensor?
Reply #26 - 03. Jun 2009 at 15:57

Rubber hose sounds like the SAI injection pipe (silver one that runs across front of cam belt cover?).

As said, could be that the exhaust is partially blocked and there's too much pressure build-up here or that the one-way valve in the sai system is faulty and allowing hot gases up the rubber pipe.

Note also that a hole here would cause the lambda sensor for that bank to misread and perhaps cause running issues, although it sounds like you've also been dealt a faulty crank sensor!

I would block the sai pipe with something (15mm plumbing stop-end and jubilee clip?) and remove the whole system as it doesn't do much. Then see if it blows the pipe off again (exhaust blocked).

Kevin

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Vmax Senior Member Offline Missing life on two wheels :( Posts: 669 Waterlooville, Hampshire. Gender: Drives: JAGUAR XJ8 SPORT	Re: Crank Sensor? Reply #27 - 03. Jun 2009 at 16:09 Yes it's just a small piece of rubber that connects the pipes together. it must have got realy hot as it burst through some realy thick rubber pipe after a couple of miles. If my exhaust is blocked what then? sounds expensive??
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Vmax Senior Member Offline Missing life on two wheels :( Posts: 669 Waterlooville, Hampshire. Gender: Drives: JAGUAR XJ8 SPORT	Re: Crank Sensor? Reply #28 - 03. Jun 2009 at 16:10 Sorry, when you say remove the system do you mean the part that runs across the front of the engine?
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