Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: swordfish on 27 September 2012, 06:16:42

Title: cutting out
Post by: swordfish on 27 September 2012, 06:16:42

Hi  i have a 3.0 elite x reg . the problem is that every 20 to 30 mile it starts to miss and cuts out . if you turn off and leave for 5 mins it starts fine again .or if you just keep restarting it it starts and cuts out again . its had a new icv and elite pete has checked for air leaks

Title: Re: cutting out
Post by: Elite Pete on 27 September 2012, 09:38:27

Releasing the fuel filler cap seemed to make a difference or it didn't cut out when I undid the cap every 5 minutes

Title: Re: cutting out
Post by: albitz on 27 September 2012, 09:57:47

Blocked fuel tank breather ? or the usual suspects - crank sensor,or dispack ?

Title: Re: cutting out
Post by: swordfish on 27 September 2012, 17:09:42

ok .first i will try it without the fuel cap on see what happens cheers . carl :y

Title: Re: cutting out
Post by: swordfish on 30 September 2012, 19:58:34

 OK . no look with removing the fuel cap it still does it ??? . but i was on the motorway today and it started again; but it would not cut out because i had constant revs .but it was missing bad so i pulled off and it cut out .tried to restart it started but with a puff of smoke and you could smell the cats real bad [ rotten egg smell] so i think the cats got real hot because of the timing  with the  coil packs playing up . it then drove like normal again all the way home so i think it could well be the coil packs  what do you think  cheers  :y carl

Title: Re: cutting out
Post by: albitz on 30 September 2012, 20:54:16

Check for fault codes (pedal trick),pull plug leads and check for oil in the plug wells. ;)

Title: Re: cutting out
Post by: swordfish on 01 October 2012, 06:24:54

its a 2000 3.0 l elite. :-\ i thought that was the paper clip test

Title: Re: cutting out
Post by: berserkerboy on 01 October 2012, 06:48:36

I had similar issues with my 2.0 16v. It was very annoying and a worry on major roads. Turned out to be the crank sensor. The wires at the sensor end had become bare and were touching each other giving confusing signals to the ecu. Replaced and car working well again. You need to get the codes.

Title: Re: cutting out
Post by: TheBoy on 01 October 2012, 09:15:29

Quote from: swordfish on 01 October 2012, 06:24:54

its a 2000 3.0 l elite. :-\ i thought that was the paper clip test

Yup, do a paperclip test :y

Title: Re: cutting out
Post by: swordfish on 03 October 2012, 09:41:00

 OK done paper clip test. results
                                 
                                        74 [mass air flow sensor voltage high]
                                       
                                        89 [02 sensor 2 open circuit ]

                                        13 [ 02 sensor 1 open circuit]

                                        31 [ no engine rpm signal]    engine was not running during test

                                                   

Title: Re: cutting out
Post by: kcl on 03 October 2012, 10:48:14

My money goes on MAF  :y

Title: Re: cutting out
Post by: swordfish on 03 October 2012, 15:47:24

whats  MAF   :-\

Title: Re: cutting out
Post by: tunnie on 03 October 2012, 17:41:52

Mass Air Flow sensor

Title: Re: cutting out
Post by: swordfish on 05 October 2012, 06:20:37

 thanks .anybody got one for sale

Title: Re: cutting out
Post by: albitz on 05 October 2012, 06:25:36

Yes. Will send you a PM. I will try and find a pic of one to send you,then try unplugging the electrical plug to yours.If yours is faulty,the car may run better with it unplugged as the ECU will use a default setting rather than the faulty signal froma damaged MAF. This would confirm yours is faulty,although the fault code has probably already done that tbh.  :y

Title: Re: cutting out
Post by: swordfish on 10 October 2012, 06:36:58

 what will be the open circuit fault  :-\ :-\ :-\

Title: Re: cutting out
Post by: albitz on 10 October 2012, 08:13:29

It can often be the case that one fault confuses various systems and you get several codes.When you get the MAF fitted,drive it for a while,do at least 25 engine starts,then read codes again and report back. :y

Title: Re: cutting out
Post by: swordfish on 18 October 2012, 06:22:15

 Good news . it looks like it was the maf that was playing up. as since its been replaced its been fine thanks for the help everyone
                                                               :y :y :y :y :y :y :y :y :y

Title: Re: cutting out
Post by: kcl on 18 October 2012, 13:00:32

As expected  ;)

Great news you had it cured  :y