Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: JamesV6CDX on 22 September 2007, 14:37:39
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My rear multiram is still not working, under any conditions. Front one is fine. Can anyone help? I can confirm the following...
1) All vacc pipes are secure and intact, not crimped. They are all in the right places, I have double and triple checked against Marks diagram.
2) The one-way valves in the Vacc tanks are working.
3) The fault does not lie with the rear actuator - I swapped it for a known good one, and it still doesn't operate.
4) I plumbled in the rear multiram to the front actuator, as a test, and the rear multiram operates fine when electronically operated to the front actuator plug
5) I get an EML if I unplug the rear multiram, which goes out when I plug it back in. I also hear the actuator make a noise if I plug it back in with engine running.
6) Fault codes 73 and 74 are stored but the EML is not lit.
7) No obvious air leaks
Any ideas? >:(
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Try feeding it straight to the servo pipe.... :y
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The way I see it is, you either have no vacum to the rear multiram or that the 12V that actuates the solenoid is not present.
Have you tried to see if there is a strong enough vacum present to the rear multiram?
HTH Karl
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Thought you were coming over today so we could try to actuate multirams with Tech2 :-/
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Thought you were coming over today so we could try to actuate multirams with Tech2 :-/
Sorry Jaime... I've been wrapped up with a few Family issues, I should have let you know sooner I couldn't make it...
I didn't have more than 15 mins to play with it today, but I'm convinced I've got a good vaccum there - I think there's an electronic problem with actuating it....
Hopefully we can get together sometime very soon :y
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Thought you were coming over today so we could try to actuate multirams with Tech2 :-/
I didn't have more than 15 mins to play with it today, but I'm convinced I've got a good vaccum there - I think there's an electronic problem with actuating it....
Hopefully we can get together sometime very soon :y
If you are sure that there is a good vaccum to it then there can only be one other thing wrong with it and that is (as you say) the electronics actuating it.
This would be the only thing left surely?
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Thought you were coming over today so we could try to actuate multirams with Tech2 :-/
I didn't have more than 15 mins to play with it today, but I'm convinced I've got a good vaccum there - I think there's an electronic problem with actuating it....
Hopefully we can get together sometime very soon :y
If you are sure that there is a good vaccum to it then there can only be one other thing wrong with it and that is (as you say) the electronics actuating it.
This would be the only thing left surely?
I agree... Does anyone know what pin outs on the ECU these wires trace to, so I can do a continuity test?
May as well eliminate everything I can, before I pester TB and his Tech2 ;)
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Thought you were coming over today so we could try to actuate multirams with Tech2 :-/
I didn't have more than 15 mins to play with it today, but I'm convinced I've got a good vaccum there - I think there's an electronic problem with actuating it....
Hopefully we can get together sometime very soon :y
If you are sure that there is a good vaccum to it then there can only be one other thing wrong with it and that is (as you say) the electronics actuating it.
This would be the only thing left surely?
I agree... Does anyone know what pin outs on the ECU these wires trace to, so I can do a continuity test?
May as well eliminate everything I can, before I pester TB and his Tech2 ;)
Have a look on either TIS or Haynes at the wiring diag, that will show you... ...I'm suspecting duff vac, of failed solenoid (measure resistance with meter)
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Thought you were coming over today so we could try to actuate multirams with Tech2 :-/
I didn't have more than 15 mins to play with it today, but I'm convinced I've got a good vaccum there - I think there's an electronic problem with actuating it....
Hopefully we can get together sometime very soon :y
If you are sure that there is a good vaccum to it then there can only be one other thing wrong with it and that is (as you say) the electronics actuating it.
This would be the only thing left surely?
I agree... Does anyone know what pin outs on the ECU these wires trace to, so I can do a continuity test?
May as well eliminate everything I can, before I pester TB and his Tech2 ;)
Have a look on either TIS or Haynes at the wiring diag, that will show you... ...I'm suspecting duff vac, of failed solenoid (measure resistance with meter)
Didn't you read the above? >:(
The Vacc is strong, and the soleniod has been replaced for a known good one ;D
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Thought you were coming over today so we could try to actuate multirams with Tech2 :-/
I didn't have more than 15 mins to play with it today, but I'm convinced I've got a good vaccum there - I think there's an electronic problem with actuating it....
Hopefully we can get together sometime very soon :y
If you are sure that there is a good vaccum to it then there can only be one other thing wrong with it and that is (as you say) the electronics actuating it.
This would be the only thing left surely?
I agree... Does anyone know what pin outs on the ECU these wires trace to, so I can do a continuity test?
May as well eliminate everything I can, before I pester TB and his Tech2 ;)
Have a look on either TIS or Haynes at the wiring diag, that will show you... ...I'm suspecting duff vac, of failed solenoid (measure resistance with meter)
Didn't you read the above? >:(
The Vacc is strong, and the soleniod has been replaced for a known good one ;D
errr, no... ...rather obviously ;D
sorry trying to catch up on posts, not to mention another 40 new PMs.
pipe blocked between solenoid and actuator? failed diaphram in actuator?
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Actuator changed... vacc pipe also clear :-/
By the way.... I've just sent you a PM ;D ;D
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Actuator changed... vacc pipe also clear :-/
By the way.... I've just sent you a PM ;D ;D
oh no, thats another one - I need a bigger pm box!
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Forgot to mention that when I sold you the car James, sorry. The rear multiram has never worked. The front one didn't work when I first got it, some dick had snapped the plastic connector and GLUED it back on!. Sorted that one but never got round to the other because I really couldn't feel any lack of performance.
TB, 25 PM's sent [smiley=evil.gif]
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Forgot to mention that when I sold you the car James, sorry.
That's it.. I'm calling trading standards.... [smiley=evil.gif]
The rear multiram has never worked. The front one didn't work when I first got it, some dick had snapped the plastic connector and GLUED it back on!. Sorted that one but never got round to the other because I really couldn't feel any lack of performance.
I'm only kidding... I'm really thrilled with the car, I'm just too much of a perfectionist for my own good ;D
If all else fails, I'll ask the knowing one to have a look sometime ::)
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Does the ECU report any fault codes? If the actuator and plumbing are OK it looks like the electrical feed to the actuator - but it would raise a code if the ECU was seeing open / short circuit from its' end :-/
Kevin
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Does the ECU report any fault codes? If the actuator and plumbing are OK it looks like the electrical feed to the actuator - but it would raise a code if the ECU was seeing open / short circuit from its' end :-/
Kevin
Codes 73 and 74 are stored. Both are Maf voltage out of tolerance codes.
If I unplug the ram, I get an EML light, plug it back in, it goes away. So there is some form of connection there..
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Does the ECU report any fault codes? If the actuator and plumbing are OK it looks like the electrical feed to the actuator - but it would raise a code if the ECU was seeing open / short circuit from its' end :-/
Kevin
Codes 73 and 74 are stored. Both are Maf voltage out of tolerance codes.
If I unplug the ram, I get an EML light, plug it back in, it goes away. So there is some form of connection there..
No air intake leaks?
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Does the ECU report any fault codes? If the actuator and plumbing are OK it looks like the electrical feed to the actuator - but it would raise a code if the ECU was seeing open / short circuit from its' end :-/
Kevin
Codes 73 and 74 are stored. Both are Maf voltage out of tolerance codes.
If I unplug the ram, I get an EML light, plug it back in, it goes away. So there is some form of connection there..
No air intake leaks?
You mean around plenum, bagpipes, inlet manifold etc? No obvious ones, and idle is fine...
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Does the ECU report any fault codes? If the actuator and plumbing are OK it looks like the electrical feed to the actuator - but it would raise a code if the ECU was seeing open / short circuit from its' end :-/
Kevin
Codes 73 and 74 are stored. Both are Maf voltage out of tolerance codes.
If I unplug the ram, I get an EML light, plug it back in, it goes away. So there is some form of connection there..
No air intake leaks?
You mean around plenum, bagpipes, inlet manifold etc? No obvious ones, and idle is fine...
Oh dear :(
Best bring it over for a tech2 session, we'll see what MAF is doing...
Need to fix the errors that ECU can see (the error handling generally isn't tested that well, so possible with this error, the rear multiram doesn't work).
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Need to fix the errors that ECU can see (the error handling generally isn't tested that well, so possible with this error, the rear multiram doesn't work).
Ah Ha... Maybe some sort of limp-home strategy has disabled it... Only explanation if the ECU can still detect its' disconnection I guess.
Kevin
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Jaime, you around tomorrow anytime? Day/Eve?
I'm going to be in brackley...
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Don't know. Defo not during day, not sure on evening yet. Sorry can't give a defo yes/no
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Don't know. Defo not during day, not sure on evening yet. Sorry can't give a defo yes/no
No problems, I'm going to be over there anyway.
It's totally non urgent, I can come back anytime..
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what's new? maybe you have resolved this problem then?
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It was nearly 4 years ago. I've lost count of how many Omegas JamesV6CDX has had since then. ;D