Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: dizaster on 24 July 2011, 21:32:09

Title: Crank Sensor changed (again) and ......
Post by: dizaster on 24 July 2011, 21:32:09
Hi all.

We I finally got a replacement for the suspect faulty crank sensor  (only took 2 weeks).
Fitted it yesterday ,  and charged battery up over night as I'd managed to leave a light on in the car ..grrrr .

tried to start it this morning,  and same old same old ,  engine turns over , no hint of firing,

Paperclip tests gave   89 and 31.

Checked and no spark at the plugs :-(

Suggestions ??

Im thinking a dodgy wire from the sensor socket to the computer thingy ??

Any other suggestions ??


Cheers

Diz
Title: Re: Crank Sensor changed (again) and ......
Post by: hoofing it on 24 July 2011, 21:43:39
Was it an after market or genuine vauxhall sensor.
Title: Re: Crank Sensor changed (again) and ......
Post by: dizaster on 25 July 2011, 00:20:56
1st was aftermarket ,  the current is vauxhall
Title: Re: Crank Sensor changed (again) and ......
Post by: CaptainZok on 25 July 2011, 02:38:25
Code 31 is normal on a V6 when the engine isn't running.
Title: Re: Crank Sensor changed (again) and ......
Post by: albitz on 25 July 2011, 06:14:31
89 is lamda sensor open circuit (afaik) cant see that preventing it starting.I would be looking at fuel supply.Relays fuses etc. Try a direct live feed to the pump to test it, see if it helps it start ?
Title: Re: Crank Sensor changed (again) and ......
Post by: sticka_v8_init on 25 July 2011, 07:55:57
Wouldn't be the immobiliser would it :-/
Title: Re: Crank Sensor changed (again) and ......
Post by: dizaster on 27 July 2011, 13:13:23
Update or should I say lack of update  :(

1. Charged battery and refitted.
2. Checked the fuel pump relays, can hear them clicking when engine switched on ,
3. Checked fuel pump , not 100% sure its pumping ,  think I can feel a vibration , but  didnt hear anything (maybe cause Im old?   ;)) 
4. No spark at spark plug , checked the distribution pak think (by feel)  non of the plugs or leads were out.
5. paper clip test shows 31 and 89 .


Brough a bluetooth OBD2 diagnostics module off fleabay, hopefully that will arrive in a day or so ,  might help track whats going on .
Someone suggest imobiliser problem ??  Is there anyway to check this ?? disable it ??  bypass it ??

If anyones got suggestions , please feel free to post ,  Im not very mechanically minded , but looks like Im going to have to become so  :)

Title: Re: Crank Sensor changed (again) and ......
Post by: Jimbob on 27 July 2011, 13:17:31
Quote
Update or should I say lack of update  :(

1. Charged battery and refitted.
2. Checked the fuel pump relays, can hear them clicking when engine switched on ,
3. Checked fuel pump , not 100% sure its pumping ,  think I can feel a vibration , but  didnt hear anything (maybe cause Im old?   ;)) 
4. No spark at spark plug , checked the distribution pak think (by feel)  non of the plugs or leads were out.
5. paper clip test shows 31 and 89 .


Brough a bluetooth OBD2 diagnostics module off fleabay, hopefully that will arrive in a day or so ,  might help track whats going on .
Someone suggest imobiliser problem ??  Is there anyway to check this ?? disable it ??  bypass it ??

If anyones got suggestions , please feel free to post ,  Im not very mechanically minded , but looks like Im going to have to become so  :)


Thats a shame, your car isnt odb2 compatible
Title: Re: Crank Sensor changed (again) and ......
Post by: dizaster on 27 July 2011, 14:26:29
dohhh

errrr  Happy Birthday dad  :-)
Title: Re: Crank Sensor changed (again) and ......
Post by: 51M0N on 27 July 2011, 14:35:51
the codes are normal when engine isn't running.

Did you reroute the wire correctly?

On my first Omega the battery going flat caused an immobiliser fault. code 145 iirc
Title: Re: Crank Sensor changed (again) and ......
Post by: hoofing it on 27 July 2011, 16:42:36
Have you dropped the key recently the chip inside might be loose from the holder. :y
Title: Re: Crank Sensor changed (again) and ......
Post by: dizaster on 27 July 2011, 22:14:06
Nope  Keys been nice and safe :-)

Q.   How does the immobilizer work ?? 

how does it actually immobilize the car ??

and if the car is immobilized how could I tell apart from it not starting  :-)
Title: Re: Crank Sensor changed (again) and ......
Post by: Entwood on 27 July 2011, 22:22:44
If the immobilisor is active .. ie its stopping the car from starting .. then the EML light will flash rapidly whilst the engine is cranking.

http://homepage.ntlworld.com/andrew.reynolds983/Manuals/Omega2002Manual.pdf

Page 51

I realise this is for the facelift but I believe that it is the same for all omegas that don't have the old IR system
Title: Re: Crank Sensor changed (again) and ......
Post by: dizaster on 28 July 2011, 13:54:15
okay thgat kind of rules that out then ,  as the EML isnt flashing