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Author Topic: Running without crank sensor?  (Read 2549 times)

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SalahJ

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Running without crank sensor?
« on: 15 July 2011, 11:51:31 »
Hi...I reckon my miggy's crank sensor packed up as it takes really long cranks to start. It's been happening for last few days, irregularly though. Sometimes it wont even start for few hours.

It just happened to work today and a work mate suggested to disconnect the CPS completely. What he said is if I disconnect it the car will run on "default" program but will burn a bit more fuel.

Is it a sensible suggestion? As I need to drive it for few hundred miles tomorrow and I really don't wanna get stranded. How difficult or easy it is to disconnect it?

Thanks from your suggestion.
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Jimbob

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Re: Running without crank sensor?
« Reply #1 on: 15 July 2011, 11:54:09 »
Hello & Welcome to the forum


some cars will run without
some cars wont


4 pot omega will
v6 wont iirc
« Last Edit: 15 July 2011, 11:55:05 by jimbob »
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Andy B

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Re: Running without crank sensor?
« Reply #2 on: 15 July 2011, 11:55:34 »
Quote
Hi...I reckon my miggy's crank sensor packed up as it takes really long cranks to start. It's been happening for last few days, irregularly though. Sometimes it wont even start for few hours.

It just happened to work today and a work mate suggested to disconnect the CPS completely. What he said is if I disconnect it the car will run on "default" program but will burn a bit more fuel.

Is it a sensible suggestion? As I need to drive it for few hundred miles tomorrow and I really don't wanna get stranded. How difficult or easy it is to disconnect it?

Thanks from your suggestion.

Easy enough to disconnect, butyou car won't run at all. Some sensors your car can live/limp without & use the 'default' engine programme, but as the crank shaft sensor tells the ECU where the crank is in its rotation to fire injectors & spark plugs your car has no chance whatsoever of running without it.  ;)

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Jimbob

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Re: Running without crank sensor?
« Reply #3 on: 15 July 2011, 11:56:35 »
should add, when replacing, only use a genuine one from vauxhall.

pattern can be very intermittant.
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SalahJ

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Re: Running without crank sensor?
« Reply #4 on: 15 July 2011, 12:00:57 »
Thanks you all for your suggestions.

The CPS is £50ish and rang up a garage they want to charge me £40 to fit it...
:-/ouch for just before the weekend.
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Jimbob

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Re: Running without crank sensor?
« Reply #5 on: 15 July 2011, 12:03:13 »
Where are you based, there may be a local member can help you out  :y
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Jimbob

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Re: Running without crank sensor?
« Reply #6 on: 15 July 2011, 12:04:29 »
and one last thing.....

Have you actually confirmed its the crank sensor?

If not, do the pedal trick as detailed in the code reading guide (see my sig below) and post up the codes it gives you  :y
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amba

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Re: Running without crank sensor?
« Reply #7 on: 15 July 2011, 12:05:35 »
About 20 mins to fit it yourself.........1 bolt securing it just by oil filter and unplug from under the windscreen scuttle passenger side.

No big deal and save youself £40.
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SalahJ

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Re: Running without crank sensor?
« Reply #8 on: 15 July 2011, 12:07:03 »
I live in Dunstable, Bedfordshire LU5 but work in Luton LU1.

Thanks again.
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SalahJ

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Re: Running without crank sensor?
« Reply #9 on: 15 July 2011, 12:09:44 »
Quote
and one last thing.....

Have you actually confirmed its the crank sensor?

If not, do the pedal trick as detailed in the code reading guide (see my sig below) and post up the codes it gives you  :y

The work mate got a code reader on him and he read it for me. 2 codes - 500 and 335.

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fiend61

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Re: Running without crank sensor?
« Reply #10 on: 15 July 2011, 12:10:58 »
i am working in luton from monday so if you would like me to have a look as already been said only takes 20mins to fit if that  :y
i am working on a shop in the Mall in luton  ;)
staying in the chiltern hotel that i think is on way to dunstable  :y

335 is cranksensor  :y
« Last Edit: 15 July 2011, 12:15:51 by fiend61 »
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Jimbob

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Re: Running without crank sensor?
« Reply #11 on: 15 July 2011, 12:11:27 »
500 is not a common code - speed sensor
but the 335 is your crank sensor


any ABS lights or anything come on as well?

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SalahJ

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Re: Running without crank sensor?
« Reply #12 on: 15 July 2011, 12:20:19 »
Quote
500 is not a common code - speed sensor
but the 335 is your crank sensor


any ABS lights or anything come on as well?


No other errors or any error lights in the dash. When it starts it runs perfectly.
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SalahJ

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Re: Running without crank sensor?
« Reply #13 on: 15 July 2011, 12:21:46 »
Quote
i am working in luton from monday so if you would like me to have a look as already been said only takes 20mins to fit if that  :y
i am working on a shop in the Mall in luton  ;)
staying in the chiltern hotel that i think is on way to dunstable  :y

335 is cranksensor  :y

Thats great. I'll try to get the CPS over the weekend. The only concern is tomorrows journey. keeping fingers crossed not to get stranded.
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fiend61

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Re: Running without crank sensor?
« Reply #14 on: 15 July 2011, 12:23:17 »
as said if you can wait till monday i can do it for you if not then have a look at this and you will be able to do it yourself  :y
http://www.omegaowners.com/forum/YaBB.pl?num=1174321688
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