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: M.o.T.  (Read 331 times)

0 Members and 1 Guest are viewing this topic.

BazaJT

  • Omega Lord
  • *******
  • Offline Offline
  • Gender: Male
  • SLady bitshorpe N.Lincs.
  • Posts: 5910
    • Omega 3 litre Elite
    • View Profile
M.o.T.
« on: 15 November 2018, 14:55:45 »

Had the Omega in for test today which it promptly failed,threw me a bit of a curve as it failed on emissions and not something mechanical or rusty.It's apparently the lambda readings which are slightly too high.Readings were;
Fast idle test
            CO 0.04%
            HC 21ppm
      Lambda 1.05[should be 0.97-1.03]
Second fast idle test
           CO 0.00%
           HC 4ppm
     Lambda 1.05[should be 0.97-1.03]

Natural idle test

           CO 0.00%

Car was taken for 20 mile blatt down local motorway prior to these readings,no EML or other lights on dash to indicate a fault.Thinking a change of plugs and some injector cleaner in the tank or am I wide of the mark?Any other ideas people?
Logged

Bigron

  • Omega Baron
  • ******
  • Offline Offline
  • Gender: Male
  • Witham, Essex
  • Posts: 4234
    • Omega 2.6 V6 Auto '51 Reg
    • View Profile
Re: M.o.T.
« Reply #1 on: 15 November 2018, 15:28:18 »

Cataclean and Shell V-Power worked for me: as well as a drive in TB mode!  ;D

Ron.
Logged

Doctor Gollum

  • Omega Queen
  • ********
  • Offline Offline
  • Gender: Male
  • In a colds and darks puddleses
  • Posts: 11166
  • If you can't eat them, join them...
    • Feetses.
    • View Profile
Re: M.o.T.
« Reply #2 on: 15 November 2018, 15:48:25 »

Cataclean and Shell V-Power worked for me: as well as a drive in TB mode!  ;D

Ron.
This...

Fresh air filter might also be of benefit  :y
Logged
Onanists always think outside the box.

Migv6

  • Omega Lord
  • *******
  • Offline Offline
  • Webs End.
  • Posts: 5216
    • 3.2 Elite & Merc 190D.
    • View Profile
Re: M.o.T.
« Reply #3 on: 15 November 2018, 16:34:23 »

Or no air filter at all during the test.  ;)

Got mine booked in for next Tuesday. Only thing Im aware of needing to do is replace the eml bulb and clear the code before the test.
« Last Edit: 15 November 2018, 16:36:23 by Migv6 »
Logged
Wish I didn't know now, what I didn't know then.

BazaJT

  • Omega Lord
  • *******
  • Offline Offline
  • Gender: Male
  • SLady bitshorpe N.Lincs.
  • Posts: 5910
    • Omega 3 litre Elite
    • View Profile
Re: M.o.T.
« Reply #4 on: 15 November 2018, 19:03:34 »

Ok fresh air filter not a problem-I'll do that at same time as plug change.Is injector cleaner the same thing/do the same job as cataclean?If not is cataclean what you ask for at the factors?
Logged

Doctor Gollum

  • Omega Queen
  • ********
  • Offline Offline
  • Gender: Male
  • In a colds and darks puddleses
  • Posts: 11166
  • If you can't eat them, join them...
    • Feetses.
    • View Profile
Re: M.o.T.
« Reply #5 on: 15 November 2018, 19:26:04 »

Wynns fuel and injector cleaner plus top the tank up with Shell V power :y
Logged
Onanists always think outside the box.

henryd

  • Omega Lord
  • *******
  • Offline Offline
  • Gender: Male
  • west cornwall
  • Posts: 7899
  • VW Touareg R5 tdi Auto
    • View Profile
Re: M.o.T.
« Reply #6 on: 15 November 2018, 19:36:34 »

Any small exhaust leak will mess with the Lambda reading, may be a small enough blow not to fail the test :y
Logged
other rides 
  Focus 1.6 mk2,Pug 306 cabriolet,Merc CLK 2.3 kompressor
  Sterling elite trekker pikey wagon

Kevin Wood

  • Global Moderator
  • *****
  • Offline Offline
  • Gender: Male
  • Alton, Hampshire
  • Posts: 34616
    • 3.2 MV6 (LPG), Westfield
    • View Profile
Re: M.o.T.
« Reply #7 on: 15 November 2018, 20:42:25 »

Any small exhaust leak will mess with the Lambda reading, may be a small enough blow not to fail the test :y

Yep, and given the rest of the results this is where my money would be, in addition to checking the plugs. There's a bit of hc in the exhaust so any sign of a misfire?

I don't think additives are going to help.
Logged
Tech2 services currently available. See TheBoy's price list: http://theboy.omegaowners.com/

BazaJT

  • Omega Lord
  • *******
  • Offline Offline
  • Gender: Male
  • SLady bitshorpe N.Lincs.
  • Posts: 5910
    • Omega 3 litre Elite
    • View Profile
Re: M.o.T.
« Reply #8 on: 15 November 2018, 21:54:42 »

No sign of a misfire as far as I can tell,tickover is smooth and even as is acceleration and it holds 70mph[honest your honour]with no hesitation.Will check exhaust carefully for any sign of a leak although nothing was noted on the test.
Logged

Webby the Bear

  • Omega Queen
  • ********
  • Offline Offline
  • Gender: Male
  • Northampton
  • Posts: 12246
    • 2000 (W Reg.) 2.5 V6 CD
    • View Profile
Re: M.o.T.
« Reply #9 on: 16 November 2018, 18:24:08 »

Any small exhaust leak will mess with the Lambda reading, may be a small enough blow not to fail the test :y

This 👍
Logged
RIP Paul Lovejoy
Pages: [1]   Go Up
 

Page created in 0.112 seconds with 23 queries.