Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: Java on 21 May 2011, 19:49:38
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The title says it all but here is the long version:
For about 3-4 weeks the car, a Omega 2.5 V6 -99 preface lift, just didn't start.
After a couple of days, without anything changed, check or tried I did try to start it again and it started right away.
A week passed then it did the same again, meaning it didn't start again. Since then, it haven't started again.
First of all I thought it was the fuel pump since the fuel hose at the motor didn't hold any fuel when I unscrewed it.
After removing the fuel pump I tried to run it to an jump starter which made it run like it was supposed to.
Then I check the fuel pump relay and it doesn't close. But when i force the tongue of it to close the pump starts working.
I check the voltage to the pump which always gives 9 volts [should it not be 12?].
After that I checked the OBD-II contact [does my Omega have OBD 2 or GM's homemade OBD 1.5?, checked wiki for that] with the paper clip-method and it gives the code 19 which is the crank sensor.
My real question is:
Can a busted crank sensor make this havoc?
Can anything else be wrong?
Any advice is worth taking into consideration!
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You`ve found the problem...........crank sensor
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And to answer the questions... Yes, a crank sensor will cause all those problems/symptoms :y :y
Genuine Vx is recommended but you need to check what plug/part number as there are a few ;) Oh... And the EPC has some errors on the 99 model year so don't just let the dealer order the one he thinks, check the Plug/part number :y :y
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fit a genuine vauxhall one and follow the routing guide on here or otherwise you will be doing the same thing again very soon :(
http://www.omegaowners.com/forum/YaBB.pl?num=1174321688 :y
oh andwell done with your fault finding ;)
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And to answer the questions... Yes, a crank sensor will cause all those problems/symptoms :y :y
Genuine Vx is recommended but you need to check what plug/part number as there are a few ;) Oh... And the EPC has some errors on the 99 model year so don't just let the dealer order the one he thinks, check the Plug/part number :y :y
Lovely, thanks for the fast responds!
I am not sure I understand what you are saying.
I checked both the British and the German eBay and found some dealers selling crankshaft sensors for about £40 for Omega V6, I assume that all Omegas with V6 has the same sensor.
I just link a site to get your opinion:
http://cgi.ebay.de/KURBELWELLENSENSOR-SENSOR-OPEL-OMEGA-B-2-5-3-2-V6-NEU-/300551732085?pt=Autoteile_Zubeh%C3%B6r&hash=item45fa477b75
To bad I can't get the part in time for the survey of the car.
Its on Thursday, I think it will be rescheduled ;)
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... I assume that all Omegas with V6 has the same sensor. .....
No, there are various. If only I could get to Trade Club's site I could post the options ............ but I can't :-?
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Sorry Java, didn't spot that you weren't in UK :-[ ::)
You're welcome to try that but you need to be sure it's a Genuine Bosch part as a minimum, if not from an Opel dealer :y
Think you want (GM) Part Number 90540743 but you need to confirm. There were a couple of different plug shapes :y
[edit]Didn't spot it was a 2.5 :-[ :-[
Choice of 2... Should be: 90492061 (2.5 Later Models) but might be: 90492006 (2.5 Earlier Models)
Part Numbers taken from Trade Club Book ;) ;)[/edit]
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best thing to do is check your crank sensor plug
there are 3 different types
oblong plug
oblong plug with rounded corners
oblong plug with rounded corners and recessed pins
:y
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gm 9174621
is the part number but as i said you have to check what plug you need ;)
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gm 9174621
is the part number but as i said you have to check what plug you need ;)
Nope.
2.5 (later models) 90492061
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gm 9174621
is the part number but as i said you have to check what plug you need ;)
Nope.
2.5 (later models) 90492061
So later models is considered from -99 preface lift?
I found the item 90492061, this won't work then?
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gm 9174621
is the part number but as i said you have to check what plug you need ;)
Nope.
2.5 (later models) 90492061
So later models is considered from -99 preface lift?
This is why you need to check the part number/plug.
Part Number should be stamped on it and just about legible with a torch & mirror from underneath ;)
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gm 9174621
is the part number but as i said you have to check what plug you need ;)
Nope.
2.5 (later models) 90492061
So later models is considered from -99 preface lift?
I found the item 90492061, this won't work then?
`98 onwards
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2.5 (later models) 90492061
sorry you are correct LD :-[
but when i bought one from andyc last week i had to descibe the plug as he said that there were 3 fitted to a 99 2.5L thats why i described the plug types to the op :y
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... I assume that all Omegas with V6 has the same sensor. .....
No, there are various. If only I could get to Trade Club's site I could post the options ............ but I can't :-?
I can :P
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... I assume that all Omegas with V6 has the same sensor. .....
No, there are various. If only I could get to Trade Club's site I could post the options ............ but I can't :-?
I can :P
Hey! What d'ya you know! So can I ...... I never even looked at TC site - just assumed it was still down ::) :y :y
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... I assume that all Omegas with V6 has the same sensor. .....
No, there are various. If only I could get to Trade Club's site I could post the options ............ but I can't :-?
I can :P
Hey! What d'ya you know! So can I ...... I never even looked at TC site - just assumed it was still down ::) :y :y
Well don`t then :P
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I cant. Dont know the new login details. :'(
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:y
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Thanks again for all the good responses.
I will have to take the sensor out first and check the item number since the engine isn't the original, the auto dealer threw it into the car about 50.000 km ago [circa 80 467,2 miles].
So the engine CAN be from lets say -94 to -06 [at least the work was done in 2006].
I hope to both see the item number on the sensor as well as the engine number when I unscrew the sensor.
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Got the sensor out today.
Got the item number:
90492061
So thanks again people, will get back when I got a new item and got it into the car.
Hopefully will it start then or else I will be nagging for more options ;)
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So after a couple of weeks tweaking my Omega I am back.
Like everyone assumed, it was the sensor that was the problem.
At least after replacing it, the car started working again.
Thanks for all the helpful advices and pointers.
Now I can cruise with my precious Omega again! :y
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Thats good to hear :y Did you route the new one away from heat sources?? The original route causes premature failure of the crank sensor due to heat from exhaust etc....