Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: lordpsk on 06 May 2008, 13:38:57

Title: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 06 May 2008, 13:38:57
Well fellow members, here's a puzzle for you, drove 300 to hotel by gatwick airport sa I was picking up a family member, stopped in hotel over night, next day car fails to start, call RAC, car is sparking and fires with a mist of easy start but no petrol delivery, pump not pumping.

Only 6 volts being delivered to petrol pump on RAC volt meg, conect switchable live supply to pump pump delivers petrol but then no spark.
So I have a car with 6volts at pump, no petrol and no spark.

Car has been bought by RAC relay back home but Vauxhall cannot look at it for two weeks due to Corsa and Vectra recalls.

Would like any suggestions or advise on what to look for/test or should I just put a gallon of petrol inside and put a match to it.
 :(
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: Marks DTM Calib on 06 May 2008, 14:02:57
First off, read the fault codes.....might be a code 19.

Sorry, I don't pay any RAC or AA diag info any credence as its rarely any where near correct.
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: M Kerr on 06 May 2008, 21:48:12
When you say delivers petrol how have you checked this!  I am assuming the engine turns over without any problem!  Have you got the engine management light on?  Have you done a paperclip test?

You might find vauxhall just as useless as the aa, just with your WALLET OPEN they'll eventually get it to go! :-/
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 07 May 2008, 15:44:26
Hi fellow members,

Well the car decided to start last night, and agin this morning, then refused to start again when I was out.

Did paperclip test, well the fault codes are 135, 31.

135 telltale (checklight) voltage low I have'n a clue what that means.

31  no engine RPM signal, no engine running.

Anybody any further suggestions

any help would be gratefully received
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: MutantCav on 07 May 2008, 20:26:30
You would need to redo the test with the engine running to eliminate the crank shaft sensor...
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 07 May 2008, 20:52:25
car has started again will redo and let you know the results
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 07 May 2008, 21:06:36
Car started done test again, still showed up 135 as the only fault.

135 Telltale (checklight) voltage low.

anybody any ideas or should I change the crank sensor.
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 08 May 2008, 10:59:40
Hi fellow members,

Does anybody know what this fault code means

135 Telltale (checklight) voltage low.

Or should I change the crank sensors
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: flatmajor on 08 May 2008, 20:13:05
hello there it looks like we have the same problem same diag i think but seems like my problem has gone away for now but as i siad same thing like when ive come home from work and the next morning it didnt start i had to give it a bump start. so ill be watching this thread to see what the out come is good luck.
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: flatmajor on 08 May 2008, 20:17:34
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Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 09 May 2008, 16:06:04
Hi, Have bought new crank sensor as car is failing to start again and let you know how I got on, hopefully it will cure it or else its a waste of £56.00
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 09 May 2008, 18:18:05
new crank sensor fitted car will not start, any suggestions anybody, not hearing much feedback, any help anybody would be appreciated
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: Auto Addict on 09 May 2008, 19:00:12
Genuine Vx crank sensor?
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: Galahad on 09 May 2008, 19:12:02
Have you tried removing the fuel filler cap?  Might be a blocked vent valve which means pump is struggling to suck fuel as its also trying to suck the tank flat.

Could also be a blocked fuel filter, and the pump has gotten progressively weaker as its tried to force the fuel through.

Good news if it is the pump, virtually any MPI pump will fit your Omega (Cavalier, Calibra, Astra, Vectra, etc)
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 12 May 2008, 16:29:42
Hi, Yes it was a genuine cranshaft sensor.

Tried releasing the petrol cap as suggested, also changed the fuel filter.

Car is still not running.

Any other suggestions gratefully received.

Regards

steve
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: Marks DTM Calib on 12 May 2008, 17:33:00
Swap the twp purple relays over in the ecu box in the engine bay
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 12 May 2008, 21:34:01
will try that changing them over, what do they both do please
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 13 May 2008, 16:51:15
Can onybody tell me what the two purple relays are for in the fuse box by the engine please
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 14 May 2008, 22:28:42
Well good news and bad news,

The bad news was the Crank sensor I got from Vauxhall turned out to be faulty.

the good news is that the car is running as soon as I replaced the faulty new sensor with an exchange unit which vauxhall were not keen on doing until I put preassure on them.

So to those people who have a simliar fault I would suggest changing the crank sensor with a genuine unit, It cost me £57.00 incl VAT.

Takes approx 30 minutes to do, the hardest part was feeding the wire up the back of the engine.

One garage quoted me 6 hours to do the job and £150 for the sensor.

 :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :) :)
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: doz on 14 May 2008, 23:10:49
Good news fella. Why did vx get a cob on over exchanging the sensor
Title: Re: 98 R 2.5 v6 FAILS TO START AFTER DRIVING 300 MILES
Post by: lordpsk on 15 May 2008, 09:17:41
Its the normal, vx parts are that good its impossible for one to go wrong.