Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: richy1819 on 27 February 2010, 11:42:01

Title: omega 2.5 td cutting out when lift off accelerator
Post by: richy1819 on 27 February 2010, 11:42:01
hi i have an 1998 omega 2.5td,the problem is when im driving and lift off the accelator to change gear the engine cuts out and managment light will come on for a second if i give the accelerator a little pump it kicks back into life and the light goes out,please help its doing my head in, had this problem for years now
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: charlie on 27 February 2010, 12:26:29
Do a paperclip test. I think this is going to come up code 64 .I dont know what the problem extactly is put posssibly be injection pump.  :-[
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: Seth on 27 February 2010, 12:31:24
Quote
Do a paperclip test. I think this is going to come up code 64 .I dont know what the problem extactly is put posssibly be injection pump.  :-[
Agreed, but how much diesel is in the tank?
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: Psychoca on 27 February 2010, 12:45:26
I get it occasionally when going up slip roads onto dual carraigeway, but, only when I had less than about 15 litres of fuel in the tank...  Clutching at straws a little, but, when was the diesel filter last changed/bled...

Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: richy1819 on 28 February 2010, 08:49:13
my tank is never less than half full,say i pull out of a junction in first i lift off the throttle to change to second as i put my foot back on the accelerator the car will just shut off,eml will come on so i take my foot off the accelerator and back on and itll kick back in,i heard about something to do with some kind of sensor on the accelerator??? fly by wire?????
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: Welung666 on 28 February 2010, 10:01:51
I'll give you £50 for it ;) ;D

Do a peperclip test and post the codes :y
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: richy1819 on 28 February 2010, 12:11:58
the engine light only comes on for a second,can i still do the paper clip test?
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: Seth on 28 February 2010, 12:14:23
Quote
I'll give you £50 for it ;) ;D

Do a peperclip test and post the codes :y
Yes, paperclip test and take things from there.

Where are you at?
 Try adding your location to your details - help may be closer than you think!
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: hoofing it on 28 February 2010, 18:27:40
Quote
Do a paperclip test. I think this is going to come up code 64 .I dont know what the problem extactly is put posssibly be injection pump.  :-[
and the possible 82  :-[
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: richy1819 on 28 February 2010, 19:04:38
i havent a clue how do do the test :( im from stafford in the midlands,id be greatfull of some help thanks
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: Seth on 28 February 2010, 19:44:06
Quote
i havent a clue how do do the test :( im from stafford in the midlands,id be greatfull of some help thanks

Take a look in Maintenance Guides section. Page 3 I'm sure.
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: joezee on 16 March 2010, 03:48:09
I`ve got the same issue with my `96 omega 2.5td. It first started doing it as i was shifting from 1st to 2nd gear but now it can happen anytime. There`s a big smoke behind me as i drive up the hill. I told this story to my mechanic over the phone who suspected the air mass flow meter. As i was looking for it on ebay i found this; 
Common symptoms of a faulty Air flow meter (AFM) are:

Poor idling

Cutting out when the engine speed drops (approching bends, roundabouts etc)

Loss of Power

Excessive Black Smoke

A diagnostic machine will sometimes point out the AFM is faulty, however, not always.
So this must be it. 70 quid.  ;)
Title: Re: omega 2.5 td cutting out when lift off accelerator
Post by: TheBoy on 16 March 2010, 09:10:24
Quote
I`ve got the same issue with my `96 omega 2.5td. It first started doing it as i was shifting from 1st to 2nd gear but now it can happen anytime. There`s a big smoke behind me as i drive up the hill. I told this story to my mechanic over the phone who suspected the air mass flow meter. As i was looking for it on ebay i found this; 
Common symptoms of a faulty Air flow meter (AFM) are:

Poor idling

Cutting out when the engine speed drops (approching bends, roundabouts etc)

Loss of Power

Excessive Black Smoke

A diagnostic machine will sometimes point out the AFM is faulty, however, not always.
So this must be it. 70 quid.  ;)
Easy test - unplug MAF, see if it runs better ;)