Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: ram 428 on 28 June 2010, 09:24:28

Title: Engine just cuts out
Post by: ram 428 on 28 June 2010, 09:24:28

Hi/

New to this forum, so hi to all. I have a 2.5 V6CDX estate 1998 with only 71,000 on the clock. I have done the usual and replaced the rocker gaskets, and routine maintenance. The problem i have is the engine turns over and runs fine, but for some reason it just cuts out, it can also prove very hard to start up again.

Any ideas?

Many Thanks,
Regards,
Jamie

Title: Re: Engine just cuts out
Post by: Entwood on 28 June 2010, 09:28:20

Welcome to the forum.

Have a read here ... paperclip test ... post up your results .

I would not be surprised if you get a code 19 - crank sensor ... :)

Easy enough to change if you do .. :)

http://www.omegaowners.com/forum/YaBB.pl?num=1189022687

Title: Re: Engine just cuts out
Post by: ram 428 on 28 June 2010, 11:00:39

Thanks, i have not got a management light on. But will this mean that there will be a code anyway if i put my code reader on. it seems to happen when the engine is warn or hot

Title: Re: Engine just cuts out
Post by: Entwood on 28 June 2010, 11:06:56

There are 2 sorts of code .. active and stored, for want of better words ... an active one puts the EML light on instantly, a stored one means there is/has been a problem but its occurance is below a preset "threshold" so the EML is not on.

Code 19 can give this problem without putting the light on.

Just my opinion, but I would probably change the crank sensor anyway, even if no codes are present. It's about the only thing I can think of that matches your symptoms.

HTH

Title: Re: Engine just cuts out
Post by: ram 428 on 28 June 2010, 11:08:50

Many thanks, Here comes the daft question, where abouts is the crank sensor

Title: Re: Engine just cuts out
Post by: Entwood on 28 June 2010, 11:16:32

one end is at the top, back, right under the scuttle ( and awkward to get at) .. electric plug, the shape of which decides which one you need, the other end is down beside the oil filter.

have a read here .. should help

http://www.omegaowners.com/forum/YaBB.pl?num=1174321688

:)

Title: Re: Engine just cuts out
Post by: ram 428 on 28 June 2010, 11:25:12

Many thanks Entwood. Thanks for the link. I will have a look and let you know.

Title: Re: Engine just cuts out
Post by: ram 428 on 28 June 2010, 11:52:52

Hi/

 I have just reset the fault codes and it has come up with code 19 Incorrect RPM signal.  It then states Not present.Any suggestions.

Regards,
Jamie

Title: Re: Engine just cuts out
Post by: Entwood on 28 June 2010, 11:57:42

Change the crank sensor. It has given no signal in the past .. but is presently giving a signal... so is intermittent. Which is why is sometimes cuts out (no signal) and sometimes works (signal)

The crank sensor tells the system when to fire the spark.. no signal, no spark - no run .. :)

(pats self on back for long range diagnosis of code 19 - reward will be a cold beer tonight :)  )

Title: Re: Engine just cuts out
Post by: neilr on 28 June 2010, 15:19:31

very well done and the reward is truly deserved :y