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: fault code 133 - omega mv6  (Read 2097 times)

0 Members and 1 Guest are viewing this topic.

thejuzo

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Finland
  • Posts: 9
    • opel omega mv6
    • View Profile
fault code 133 - omega mv6
« on: 30 August 2016, 21:04:21 »
Hello, I have strange fault code related to intake manifold valves and I have not figured yet what is causing it..
My car is omega mv6 (x30xe) 1994.

My op com shows this
Error code 133: air intake manifold valve 2 voltage too low

When my car is running it shows air intake manifold valve 2 = active(0v)
And then when engine is off and ignition on active(12v)...

So what to do next?



Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107023
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: fault code 133 - omega mv6
« Reply #1 on: 30 August 2016, 21:11:11 »
Did it happen after some work?
Logged
Grumpy old man

thejuzo

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Finland
  • Posts: 9
    • opel omega mv6
    • View Profile
Re: fault code 133 - omega mv6
« Reply #2 on: 30 August 2016, 21:14:05 »
Quote from: TheBoy on 30 August 2016, 21:11:11
Did it happen after some work?
Not actually, it just popped up yesterday. My car still works..  but air fuel rate is richer.
« Last Edit: 30 August 2016, 21:15:53 by thejuzo »
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107023
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: fault code 133 - omega mv6
« Reply #3 on: 30 August 2016, 21:16:39 »
Shouldn't affect the fuelling.

Can you swap front and back solenoids over, see if fault moves with solenoid or not...
Logged
Grumpy old man

thejuzo

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Finland
  • Posts: 9
    • opel omega mv6
    • View Profile
Re: fault code 133 - omega mv6
« Reply #4 on: 30 August 2016, 21:23:23 »
Quote from: TheBoy on 30 August 2016, 21:16:39
Shouldn't affect the fuelling.

Can you swap front and back solenoids over, see if fault moves with solenoid or not...
  The fault code still remains after I tried that move method.

 I dont think it is supposed to show active(0v) in op com at idle??
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107023
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: fault code 133 - omega mv6
« Reply #5 on: 30 August 2016, 21:36:26 »
The fault code still pointed to Valve 2, even after you swapped the solenoid with the Valve 1 one?

If so, start metering the cable.

Ignore what says op com for now.
Logged
Grumpy old man

thejuzo

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Finland
  • Posts: 9
    • opel omega mv6
    • View Profile
Re: fault code 133 - omega mv6
« Reply #6 on: 30 August 2016, 21:47:35 »
Quote from: TheBoy on 30 August 2016, 21:36:26
The fault code still pointed to Valve 2, even after you swapped the solenoid with the Valve 1 one?

If so, start metering the cable.

Ignore what says op com for now.

Oh sorry. I misunderstand. I'll try that swapping tomorrow.

But how I can test  that this part isnt broken.
Logged

Diamond Black Geezer

  • Omega Lord
  • *****
  • Offline Offline
  • Gender: Male
  • N E Lincolnshire & Warwickshire
  • Posts: 5712
  • Diamond Black '96 CDX V6 - 'Pissy'
    • & a silly coupe coming...
    • View Profile
Re: fault code 133 - omega mv6
« Reply #7 on: 31 August 2016, 13:26:17 »
Does that same part sit on the SAI as well as the intakes? Just in case it does a simple swap round would eliminate it?
Logged
Ex-Dealer Kent-Moore Rear Wheel Bearing Tool available for hire, PM for details.

"There's no point in being grown up if you can't be childish sometimes." 4th Doctor

thejuzo

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Finland
  • Posts: 9
    • opel omega mv6
    • View Profile
Re: fault code 133 - omega mv6
« Reply #8 on: 31 August 2016, 17:05:22 »
I have now swapped valve 2 with valve 1 solenoid and same error still stays and comes back after cleaning errors.. It gives 12v to valve solenoid when ignition or when engine on.  Op com says active(0v) for valve 2 when engine on and because of that, it throws that error 133..



Any ideas?
« Last Edit: 31 August 2016, 17:21:38 by thejuzo »
Logged

thejuzo

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Finland
  • Posts: 9
    • opel omega mv6
    • View Profile
Re: fault code 133 - omega mv6
« Reply #9 on: 31 August 2016, 17:25:19 »
And I have checked with voltmeter, wiring seems to be ok.  The wiring for valve 2 solenoid will give 12v and engine on, over 13.8v
Logged

thejuzo

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Finland
  • Posts: 9
    • opel omega mv6
    • View Profile
Re: fault code 133 - omega mv6
« Reply #10 on: 31 August 2016, 18:22:14 »
Which one is valve 2?  front of engine or rear of plenum?
Logged

TheBoy

  • Administrator
  • *****
  • Offline Offline
  • Gender: Male
  • Brackley, Northants
  • Posts: 107023
  • I Like Lockdown
    • Whatever Starts
    • View Profile
Re: fault code 133 - omega mv6
« Reply #11 on: 01 September 2016, 13:38:39 »
Firstly, ignore op com. Its shit.

Did the fault stay with valve 2, or move to valve 1?

If it stayed with valve 2, do a resistance chack of wiring between the valve and the ECU (you will need to remove ECU to test the wiring.
Logged
Grumpy old man

thejuzo

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Finland
  • Posts: 9
    • opel omega mv6
    • View Profile
Re: fault code 133 - omega mv6
« Reply #12 on: 03 September 2016, 00:19:05 »
Quote from: TheBoy on 01 September 2016, 13:38:39
Firstly, ignore op com. Its shit.

Did the fault stay with valve 2, or move to valve 1?

If it stayed with valve 2, do a resistance chack of wiring between the valve and the ECU (you will need to remove ECU to test the wiring.

Well I did change solenoid valve 1 to 2.  It still stayed error for valve 2.  I also tested wirings resistance between ecu and valve. Pin 31 and 46. Both checked and seemed to be ok.

Anyway when I switch to ignition, it gives about 6-8v to valve's plug for about one sec with voltmeter, then it goes back to 0v..

Shouldn't it be 12v all the time?
Logged

thejuzo

  • Newbie
  • *
  • Offline Offline
  • Gender: Male
  • Finland
  • Posts: 9
    • opel omega mv6
    • View Profile
Re: fault code 133 - omega mv6
« Reply #13 on: 04 September 2016, 00:14:02 »
Today I found that pin 31, ground pulse (from ecu) doesnt give any pulses. I tested it with voltmeter, by putting its - to brown/black wire and + to the battery's +.  No voltage changes between 1000rpm to 6k. 

Why is not ecu sending ground pulses from pin 31... Is my ecu faulthy?
Logged
Pages: [1]   Go Up
« previous next »
 

Page created in 0.011 seconds with 17 queries.