Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Kevin Wood on 28 July 2007, 19:54:06

Title: Another one refusing to start
Post by: Kevin Wood on 28 July 2007, 19:54:06
Parked up for a hour or so today and on my return the car wouldn't start >:(

Cranked over normally, just wouldn't fire. Tried a floored throttle and such like. Nothing. Not a hint of wanting to fire at all. Opened bonnet and pulled a few connectors about to check for loose ones, checked all fuses, generally tried to look like I had an idea why it was doing this to me ;)

SWMBO said it sounded funny when cranking so I told her to crank it while I listened under the bonnet, convinced it had sounded quite normal. Damned thing started first time for her >:(

Played up a little next time I stopped but started on second or third attempt.

No EML showing and it runs normally once started.

I'm thinking it's either the crank sensor or that the transponder was not un locking the immobiliser (interference, maybe?). Would a code 19 light the EML? Might have to find a laptop that'll run cheapo tech2 and check just in case.

Anyone got any other ideas?

Kevin
Title: Re: Another one refusing to start
Post by: cdx25 on 28 July 2007, 20:06:58
Quote
Parked up for a hour or so today and on my return the car wouldn't start >:(

Cranked over normally, just wouldn't fire. Tried a floored throttle and such like. Nothing. Not a hint of wanting to fire at all. Opened bonnet and pulled a few connectors about to check for loose ones, checked all fuses, generally tried to look like I had an idea why it was doing this to me ;)

SWMBO said it sounded funny when cranking so I told her to crank it while I listened under the bonnet, convinced it had sounded quite normal. Damned thing started first time for her >:(

Played up a little next time I stopped but started on second or third attempt.

No EML showing and it runs normally once started.

I'm thinking it's either the crank sensor or that the transponder was not un locking the immobiliser (interference, maybe?). Would a code 19 light the EML? Might have to find a laptop that'll run cheapo tech2 and check just in case.

Anyone got any other ideas?

Kevin

Hello Kevin,

What you describe is exactly the same as my experience when I had the crank sensor fail on me, and yes code 19 was read...  It didnt light my EML when this happened.

Jon
Title: Re: Another one refusing to start
Post by: Taxi_Driver on 28 July 2007, 20:16:25
Hi Kevin

I have been told that even tho my 2.2 will start with crank sensor unplugged, that the 2.6/3.2 will not, so going on that id go for crank sensor.

If it was imoboliser prob you would get EML flashing when cranking.
Title: Re: Another one refusing to start
Post by: Martin_1962 on 28 July 2007, 20:27:47
Identical to my crank sensor :(
Title: Re: Another one refusing to start
Post by: Kevin Wood on 28 July 2007, 20:29:09
Quote
If it was imoboliser prob you would get EML flashing when cranking.

Ahh, that's narrowed it down, then. Thanks. The lights came on as normal with the first turn of the key, airbag, ABS, etc. went off and nothing changed with the lights when I cranked it.

Sounds like I better get another crank sensor ASAP!

.. and we're thinking about driving it to Italy for summer hols soon :o

Kevin
Title: Re: Another one refusing to start
Post by: Dazzler on 28 July 2007, 21:34:10
Well change the crank sensor then off you go, just make sure you take out breakdown cover just in case ;)
Title: Re: Another one refusing to start
Post by: x25xe on 29 July 2007, 09:11:10
These were the symptoms that I had when my sensor started to fail.  Sometimes I would need to crank the engine two or three times before it would start.  I never had a non start situation though.

I since replaced the sensor and the difference in starting is remarkable.  First turn of the key.  It even seems to have improved economy and, when cruising, the engine revs are lower.  The last two points may be subjective and in my imagination though!

Changing the sensor only took me around half an hour, that included walking to the dealer and back to get the part!
Title: Re: Another one refusing to start
Post by: TheBoy on 29 July 2007, 10:44:00
crank sensor....   19 will not illuminate eml, which is why around 10% of us are driving around with a faulty sensor....
Title: Re: Another one refusing to start
Post by: Kevin Wood on 29 July 2007, 12:01:13
Well, TC card arrived yesterday so I'll be off to the VX garage tomorrow lunchtime for a new sensor. Was going to get a spare anyway but it looks like it beat me to it. ::)

Will root around for a decent laptop with a real serial port as well, so I can check for a 19.

Thanks for the help.

Kevin
Title: Re: Another one refusing to start
Post by: cdx25 on 29 July 2007, 23:10:35
Quote
Well, TC card arrived yesterday so I'll be off to the VX garage tomorrow lunchtime for a new sensor. Was going to get a spare anyway but it looks like it beat me to it. ::)

Will root around for a decent laptop with a real serial port as well, so I can check for a 19.

Thanks for the help.

Kevin

Sounds like you had your code 19, but courtesy OOF ;-)

Hope you get it fixed OK and check out the rewiring route to help avoid it going iffy again.  Cable needs to be away from sources of heat.  See maint guide.  Jon
Title: Re: Another one refusing to start
Post by: Kevin Wood on 30 July 2007, 19:11:43
Well, hooked up the cheapo Tech 2 today and got a trouble code 0335 with the engine running. A search on here revealed that this is normal with engine stopped but points to crank sensor if it appears when running?

Anyway, new crank sensor on order from stealers. Should arrive Wednesday >:( £42.08 after presenting ABS card  :y

Kevin
Title: Re: Another one refusing to start
Post by: TheBoy on 30 July 2007, 20:04:47
Quote
Well, hooked up the cheapo Tech 2 today and got a trouble code 0335 with the engine running. A search on here revealed that this is normal with engine stopped but points to crank sensor if it appears when running?

Anyway, new crank sensor on order from stealers. Should arrive Wednesday >:( £42.08 after presenting ABS card  :y

Kevin
i think on dbw, the 0335 is a stored cranksensor fault, so if seen, replace sensor...
Title: Re: Another one refusing to start
Post by: Taxi_Driver on 30 July 2007, 23:52:17
Quote
Well, hooked up the cheapo Tech 2 today and got a trouble code 0335 with the engine running. A search on here revealed that this is normal with engine stopped but points to crank sensor if it appears when running?

Anyway, new crank sensor on order from stealers. Should arrive Wednesday >:( £42.08 after presenting ABS card  :y

Kevin

I assume that incl vat which is correct TC price  :y
Title: Re: Another one refusing to start
Post by: jay_jay on 03 August 2007, 20:51:03
hi having the same problem with my omega just wanted to known is where is the crank sensor can anybody help me
Title: Re: Another one refusing to start
Post by: Andy B on 03 August 2007, 21:07:22
Quote
hi having the same problem with my omega just wanted to known is where is the crank sensor can anybody help me

Engine size??  ;)
Title: Re: Another one refusing to start
Post by: jay_jay on 04 August 2007, 08:04:19
hi its omega b 2.5 1999
Title: Re: Another one refusing to start
Post by: amba on 04 August 2007, 08:30:34
as viewed from front of car r/h side just below oil filter...cable runs up side of engine and into connecter by hbv..you will nead to remove wipers and screen scuttle panel to get access to plug..if you go into general info there is a perfect"how to do "..best of luck..quite straight forward but make sure you get the correct sensor unit !!