Omega Owners Forum

Chat Area => General Discussion Area => Topic started by: jonathanh on 08 May 2009, 20:19:52

Title: veccy B MAF problem
Post by: jonathanh on 08 May 2009, 20:19:52

well i think it is.   Its a 10 year old veccy b (X18XE), stalling at low revs.  Just done a paperclip test and it shows 0100 MAF sensor.  

Before I throw some money at it (i.e new MAF)  does anyone know if there is something else that is likely to be causing this other than the MAF itself?  I must say I don't know lots 'bout the veccy

thanks in advance all!

Title: Re: veccy B MAF problem
Post by: VXL V6 on 08 May 2009, 20:22:22

Have you tried cleaning the IAC, was a very common fault on X18XE and X20XEV

Title: Re: veccy B MAF problem
Post by: STMO123 on 08 May 2009, 20:33:02

If the paperclip test is pointing to the MAF sensor, why doubt it?

Title: Re: veccy B MAF problem
Post by: jonathanh on 08 May 2009, 21:46:10

thanks guys

The icv has been changed so I think I can discount that.  

Breathers could be blocked as well.  however I don't think that the MAF code would come up without a problem with the MAF

Title: Re: veccy B MAF problem
Post by: Marks DTM Calib on 08 May 2009, 21:47:49

Check the corrugated pipe that connects the MAF to the throttle body for splits.

Title: Re: veccy B MAF problem
Post by: jonathanh on 08 May 2009, 21:49:17

I did have a nosey around and it all looked ok but I'll give it a really good going over tomorrow am

thanks Mark

Title: Re: veccy B MAF problem
Post by: Jimbob on 09 May 2009, 07:50:25

Think there is a TIS entry about adding an extra ground connection for the maf

Title: Re: veccy B MAF problem
Post by: jonathanh on 10 May 2009, 06:38:50

Thanks guys.  I've checked the air intake pipe between the MAF and throttle. Its ok, signs of splittling but defo not split yet.

Can someone give me more info on the TIS update.  From what I can find it applies to the X18XE1 not X18XE as I have and the symptoms include a fault on a temp sensor as well.

Just want to be sure before I condemn the MAF.

Thanks for the help so far

Title: Re: veccy B MAF problem
Post by: Jimbo B on 10 May 2009, 07:10:02

have you tried the idler control I had it cleaned on my old miggy and that cured my cutting out problems :) :) :) :)

Title: Re: veccy B MAF problem
Post by: jonathanh on 10 May 2009, 08:20:30

Yep. The icv has been changed so can discount that.  I do suspect the MAF but want to eliminate the obvious alternatives

Title: Re: veccy B MAF problem
Post by: Jimbob on 10 May 2009, 10:28:26

I fixed the same prob on a 10yo vectra b yesterday.

p0100 not present stored

cleaned icv, and throttle body (only a little, was clean and holes clear, so wiped over with carb cleaner)
cleaned breathers

all ok now.

Title: Re: veccy B MAF problem
Post by: jonathanh on 10 May 2009, 14:31:10

I think the breathers are ok and I am not sure if they were blocked whether they would give the problem I have.

There was a leaking vac pipe on the solenoid at the top right of the engine.  The leak was not on the solenoid to manifold but on the pipe going from solenoid.

I have no idea what this solenoid does ( top right above dis pack): any ideas?

Title: Re: veccy B MAF problem
Post by: STMO123 on 10 May 2009, 17:00:16

Quote

I think the breathers are ok and I am not sure if they were blocked whether they would give the problem I have.

There was a leaking vac pipe on the solenoid at the top right of the engine.  The leak was not on the solenoid to manifold but on the pipe going from solenoid.

I have no idea what this solenoid does ( top right above dis pack): any ideas?

I haven't looked at an omega engine for donks, but I think you'll be looking at the rear multi-ram.

Title: Re: veccy B MAF problem
Post by: jonathanh on 10 May 2009, 20:14:08

Thanks for the thoughts but this is a veccy b,  wrong wheel drive, 2 few cylinders.  Not a meega


Found out it also triggered the MAF error code at speed. Think it confirms its the MAF?

Title: Re: veccy B MAF problem
Post by: STMO123 on 10 May 2009, 20:31:12

Quote

Thanks for the thoughts but this is a veccy b,  wrong wheel drive, 2 few cylinders.  Not a meega


Found out it also triggered the MAF error code at speed. Think it confirms its the MAF?

OOPS

Title: Re: veccy B MAF problem
Post by: VXL V6 on 10 May 2009, 21:00:56

Quote

Quote

Thanks for the thoughts but this is a veccy b,  wrong wheel drive, 2 few cylinders.  Not a meega


Found out it also triggered the MAF error code at speed. Think it confirms its the MAF?

OOPS

It's an age thing.  ;)

Title: Re: veccy B MAF problem
Post by: jonathanh on 11 May 2009, 21:04:53

Can anyone confirm whether the TIS update relates to the x18xe or x18xe1 pls. ( The update relating to the earth fault on the MAF)

Thanks in advance

Title: Re: veccy B MAF problem
Post by: Jimbob on 12 May 2009, 08:08:27

The one I was thinking of, is for the X18XE1 sorry (E0002033)


there is also remedy E001074 which talks of airleaks around the maf, or bad connections, clean em up and cable tie the connector on.

Title: Re: veccy B MAF problem
Post by: jonathanh on 12 May 2009, 19:39:19

thanks to you all who have helped here.  I think we have diagnosed a MAF failure so going to try that.

the other thing that bemuses me is that there is pressure in the cam cover area:  I though that should be under vacuum not under pressure. odd given breathers are clear