Omega Owners Forum

Please login or register.

Login with username, password and session length
Advanced search  

News:

Search the maintenance guides for answers to 99.999% of Omega questions

Pages: [1]   Go Down

Author Topic: MAF sensor no signal  (Read 1762 times)

0 Members and 1 Guest are viewing this topic.

terry paget

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Midsomer Norton Somerset
  • Posts: 4633
    • 3 Astras 2 Vectra
    • View Profile
MAF sensor no signal
« on: 26 March 2018, 16:53:23 »

Preparing X807, a 2.2 petrol manual, for its MOT. I have changed the catalyst, which I presumed would get rid of the 0420 fault code. I cancelled all fault codes, but reading live data there was no information from the MAF sensor. I swopped MAF sensors with my other 2.2, then I got data from the MAF sensor, but it read 17Kg/h, 1.00 volts, varying. Air fuel ratio sensor 1 read lean, so did air fuel ratio sensor 2. O2 sensor loop remained open.

How should I proceed?
Logged

Doctor Gollum

  • Get A Life!!
  • *****
  • Offline Offline
  • Gender: Male
  • In a colds and darks puddleses
  • Posts: 28089
  • If you can't eat them, join them...
    • Feetses.
    • View Profile
Re: MAF sensor no signal
« Reply #1 on: 26 March 2018, 16:57:54 »

Was the car up to temperature when you checked the live data?
Logged
Onanists always think outside the box.

terry paget

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Midsomer Norton Somerset
  • Posts: 4633
    • 3 Astras 2 Vectra
    • View Profile
Re: MAF sensor no signal
« Reply #2 on: 26 March 2018, 17:50:20 »

Was the car up to temperature when you checked the live data?
Yes
Logged

terry paget

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Midsomer Norton Somerset
  • Posts: 4633
    • 3 Astras 2 Vectra
    • View Profile
Re: MAF sensor no signal
« Reply #3 on: 26 March 2018, 20:15:38 »

On my V6 Omegas the lambda sensors flip rich-lean-rich-lean about very second. I expected the 2.2 would behave similarly. I suspect the MAF sensor or one of the lambda sensors.

Would it help to get live data from my other 2.2? With its original MAF sensor and the MAF sensor from X807?
Logged

terry paget

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Midsomer Norton Somerset
  • Posts: 4633
    • 3 Astras 2 Vectra
    • View Profile
Re: MAF sensor no signal
« Reply #4 on: 27 March 2018, 19:00:03 »

I swopped the MAF sensors between my 2 2.2s. Then I got data from the MAF sensor, but it did not change the behaviour of the first lambda sensor, it still did not cause the gases to vary lean-rich-lean-rich. I put it back in the other 2.2, and then it did indeed record lean-rich-lean-rich.
I conclude I need a new MAF sensor and a new lambda sensor.
Logged

PHEASANT PLUCKER

  • Intermediate Member
  • ***
  • Offline Offline
  • WIRRAL
  • Posts: 294
    • View Profile
Re: MAF sensor no signal
« Reply #5 on: 27 March 2018, 19:19:01 »

I’m selling one from a late model Desmond, if interested.
Check out parts for sale section.  :) :) :)
Logged

biggriffin

  • Omega Lord
  • *****
  • Offline Offline
  • huntingdon, Hoof'land
  • Posts: 9739
    • Vectra in a posh frock.
    • View Profile
Re: MAF sensor no signal
« Reply #6 on: 27 March 2018, 19:22:50 »

Is the Maf the same as a 3.0L, if so I've a couple here £15 posted.
Logged
Hoof'land storeman.

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 105839
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: MAF sensor no signal
« Reply #7 on: 27 March 2018, 19:25:34 »

Is the Maf the same as a 3.0L, if so I've a couple here £15 posted.
No, sadly not.
Logged
Grumpy old man

biggriffin

  • Omega Lord
  • *****
  • Offline Offline
  • huntingdon, Hoof'land
  • Posts: 9739
    • Vectra in a posh frock.
    • View Profile
Re: MAF sensor no signal
« Reply #8 on: 27 March 2018, 19:27:09 »

Is the Maf the same as a 3.0L, if so I've a couple here £15 posted.
No, sadly not.


Ar well.
Logged
Hoof'land storeman.

terry paget

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Midsomer Norton Somerset
  • Posts: 4633
    • 3 Astras 2 Vectra
    • View Profile
Re: MAF sensor no signal
« Reply #9 on: 28 March 2018, 10:16:56 »

I’m selling one from a late model Desmond, if interested.
Check out parts for sale section.  :) :) :)
PM sent
Logged

PHEASANT PLUCKER

  • Intermediate Member
  • ***
  • Offline Offline
  • WIRRAL
  • Posts: 294
    • View Profile
Re: MAF sensor no signal
« Reply #10 on: 28 March 2018, 11:24:15 »

And replied  :) :) :)
Logged

terry paget

  • Omega Baron
  • *****
  • Offline Offline
  • Gender: Male
  • Midsomer Norton Somerset
  • Posts: 4633
    • 3 Astras 2 Vectra
    • View Profile
Re: MAF sensor no signal
« Reply #11 on: 28 March 2018, 13:09:50 »

Logged
Pages: [1]   Go Up
 

Page created in 0.041 seconds with 22 queries.