Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: jim513 on 03 October 2010, 14:09:56
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Help i've broken down engine turning over ok but not firing tried easy start in air intake called greenflag they couldnt help he reckons crank sensor or coil unit tried paperclip test got 55 and 31 any ideas
Thanks
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If you state your location more precisely then you are looking for a crank sensor and someone to fit it I presume. If that is what is required then someone may come along to assist. With the crank sensor problem the car may restart after a time and you may be able to get home - but it is dangerous if it cuts out on you at speed.
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I'm in Ashford kent and i'm not really sure if it is a crank sensor but yes i would be looking for help in locating and fitting a new one if that is the problem. :y
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someone may come along soon on this one - in the meantime I would send a PM to OOF member Lizzie Zoom who is in your area and may have some contacts. She is having some changes to her pc so she is not online a lot for next few days but is a good source of info.
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According to the code list:
55 Replace Electronic Control Unit (ECU)
Unusual code to get, is this the only one (along with 31?)
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Del boy is also in Ashford. He may be able to offer some assistance, although sourcing parts on a sunday afternoon isnt going to be easy.
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According to the code list:
55 Replace Electronic Control Unit (ECU)
Unusual code to get, is this the only one (along with 31?)
Only ever seen this when I inadvertently replaced an ECU chip with the wrong one.
It is known for the crank sensor to fail without throwing up an error code.
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when i got he 55 fault code it was followed by 4 quick flashes (strange i know).
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is your car chipped? if so a 55 is very common and nothing to worry about
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No i dont think it is :-/
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Im not an expert by any means, but a sudden breakdown like this will always make the crank sensor the chief suspect. You cant get the usual code 19 as the engine wont run. Local factors are probably open until 4pm. Worth asking if there is a Eurocraparts or similar local and try to get hold of a sensor.
No gaurentee it will work, but worth a try as your stuck.
Edit. Eurocraparts
Ashford trade centre
Orbital park
Hall Ave.
Ashford
TN24 0SP
LCP Automotive components
Bridge rd.
Ashford
Motor parts direct
Chunnel estate
Victoria Rd.
Ashford.
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Personally not seen a 55 code yet.
From what your saying it does sound like one of the symptoms of a Crank Sensor. The turning over but not firing..
Have you had this happen before?? I had one that was not able to rev over 3000rpm ?? As they as a rule they breakdown before totally stopping I have found :-?
Not always do you get a code come up either..
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Waiting till tomorrow isnt a problem the problem is knowing what is actually wrong i'm guessing a crank sensor isnt cheap is it common for them to fail.
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Waiting till tomorrow isnt a problem the problem is knowing what is actually wrong i'm guessing a crank sensor isnt cheap is it common for them to fail.
About £50 from Vauxhall :y
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every now and again i'd have a problem starting but it would fire up after a few goes...then it would be fine for weeks this has probably gone on for about 6 months or so :-/
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Its probably the most common cause of breakdown on the Omega, due to the proximity of the wiring to the exhaust manifold.
Iirc they cost about £60.
If you install a new one, have a read of the relevant guide first. The wiring needs to be routed in a different way to stop the same happening again. No need to bother removing the old one from the car, just disconnect it and leave it there. Hth. :y
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Thanks for the addresses Albs :y £60 aint to bad i guess
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classic crank sensor breakdown over time
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That def. sounds like crank sensor, very common fault on these cars.
You may find when you go back to it, it will start.
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every now and again i'd have a problem starting but it would fire up after a few goes...then it would be fine for weeks this has probably gone on for about 6 months or so :-/
I think there mate you have confirmed its the Crank Sensor :y
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Thanks for all the advice and help :y :y :y :y
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EXACT same issue on mine - sometimes won't start in the morning, then will, then fine all day and won't see it again for a couple of weeks
this morning its decided not to start ever! :-) - I'll be doing a CPS monday morning then - still, beats working.
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The 55 is somewhat worrying... ...I've only ever seen this on chipped 3.0l if the ignition is left on too long before starting. This invariably does not prevent starting, but does bring on EML.
If the car is not chipped, its possible this is a genuine ECU failure (unheard of to be honest), or an old code from a previous glitch (have you paperclipped it before and had a 55?).
I would still be inclined to change crank sensor, and go from there.
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Hello I am near Ashford had the same problem M C Motors Ellingham fixed mine Give Monty a call and he will give you a price
Ron
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My 2.5 is onto it's third crank sensor in 12 years, I recently found the second one still in place though not connected (obviously), got me thinking what the hell is this and why isn't it connected? Will be removing it at earliest opportunity as I don't like the idea of duff parts cluttering up the engine bay - am I being too fussy? ;)
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The 55 is somewhat worrying... ...I've only ever seen this on chipped 3.0l if the ignition is left on too long before starting. This invariably does not prevent starting, but does bring on EML.
thats right tb, thats what i get if the igmition is on too long before startup.(its chipped) :y
i would deff go with cranksensor 1st :y
If the car is not chipped, its possible this is a genuine ECU failure (unheard of to be honest), or an old code from a previous glitch (have you paperclipped it before and had a 55?).
I would still be inclined to change crank sensor, and go from there.
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My 2.5 is onto it's third crank sensor in 12 years, I recently found the second one still in place though not connected (obviously), got me thinking what the hell is this and why isn't it connected? Will be removing it at earliest opportunity as I don't like the idea of duff parts cluttering up the engine bay - am I being too fussy? ;)
I changed the sensor on my first Mig as the original was starting to give problems, but hadnt completely given up the ghost. I left the original in place as a spare for an emergency if I ever needed it. Might be worth trying your "spare" one before removing it completely. ;)