Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: johnnycboy on 31 March 2009, 16:16:30
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Notice this one not working when you blip it. The one at front operates and comes in about 4000 rpm. Cant feel or hear any leaks around that area. Tried carb just in case any airleaks, but no noticeable change. Any ideas greatly appreciated
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Mine was a probem with a small U shaped rubber tube at the rear of the plenum where the plastic vac pipe went in. Despite having "checked" it several times the crack underneath went unnoticed. Worth a look again just in case.
varche
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will do cheers
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check the pipes for holes esp in the far pass side corner, found no another members car that the large pipe had been rubbing no the bulk head where the scuttle sections meet, although not holed yet in his case, and a small pipe round the same area that leads to the vac tank behind the pollen filter.
But in my experience non that lot will work if the supply does not reach the vac tank no the air inlet/bag pipes at the front, with supply there, any hissing could be heard for a few seconds after the engine is cut. Also check the electrical plugs are fitted correctly, both have power supply. Hth
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Just been over the back of the engine bay, cannot find nor feel any leaks, I've even checked the vacuum against a known good car and they seem relatively the same in comparison. With the electrical side of it would that stop the valves working, I thought the multiram worked of a vacuum. Would it be possible for the valve itself to be at fault. At a loss now :-/
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Just had another look, have had the ram working on test of inlet manifold. So would I be right in thinking I have a vac leak.
I'm wondering if this has not been working since they put LPG on it. Only had the car a few weeks and this is v. annoying.
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yeah sounds like a vacum leak to me
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Well myself and Lazydocker had another look at this today and could not find any leaks or snags in pipework. Had to replace the rear solenoid valve due to a bit of heavy handedness in replacing the pelnum, still not working. Anybody have anymore ideas as I'm all out. Car runs perfect no lumpiness or any other symptons. :'(
BTW thanks LD for LPG pipes and re-calibration :y
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Well myself and Lazydocker had another look at this today and could not find any leaks or snags in pipework. Had to replace the rear solenoid valve due to a bit of heavy handedness in replacing the pelnum, still not working. Anybody have anymore ideas as I'm all out. Car runs perfect no lumpiness or any other symptons. :'(
BTW thanks LD for LPG pipes and re-calibration :y
I still can't believe it ran with the mapping how it was ::) ::)
Hopefully it's a bit better now... And at least the gas leak has gone :o :o
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I assume the valve is connected correctly?
i.e. the feed is to the end and the output on the side?
Is there vaccum getting to the valve feed?
Remember that you need to 'give it death' on the throttle to get the rear actuator to operate.
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I assume the valve is connected correctly?
i.e. the feed is to the end and the output on the side?
Is there vaccum getting to the valve feed?
Remember that you need to 'give it death' on the throttle to get the rear actuator to operate.
Yep... Vac to feed is OK
Pipes are correctly fitted
TBH, although I was sat in the passenger seat, I didn't think it was particularly down on power... Well nothing the other 500cc's it needs wouldn't cure anyway ::) ::) ;D ;D
But we did have a play and could get the front multiram to work but not the rear, even with a good bit of throttle use
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any hiss for a second or 2 when you turn the engine off?
Is the electrical plug connected?
Tech 2 can test them remotely. But you probably know that.
Ps you do have to berry the throttle to it get to move.
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Yep everything is connected correctly. No hissing or spitting. Oh well just have to live with it for now :-/. Thanks guys
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How did it behave today? Better drive than before?
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How did it behave today? Better drive than before?
Pretty good, just cost me another £220 for atf and filter change. Bastard front solenoid had crack in front sump on gearbox. Seems a lot better now though :y
Gotta sort this Vac problem though, its really bugging me. :(
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Have you done the basics?
Like pinching a length of the vac hose of another part and conencting it straight to the vac acctuatro an suck on it?
Checked vac is getting to the solenoid? (I think you have).
With the engine running, apply 12V straight to the solenoid valve and see if the actuator moves?
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Have you done the basics?
Like pinching a length of the vac hose of another part and conencting it straight to the vac acctuatro an suck on it?
Checked vac is getting to the solenoid? (I think you have).
With the engine running, apply 12V straight to the solenoid valve and see if the actuator moves?
Solenoid brand new due to heavy handed idiot breaking it upon re-assembling plenum :-[- Have carried out actuator test before this and solenoid functions as should with ignition only. I thought electrical originally, where does solenoid get its 12V from and what would signal that relay to operate?
Have not tried another peice of vac hose directly to it. would the engine need to be running when sucking on this (excuse the pun)
Will have tot try last example Friday now.
Thanks MArk
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Nope...engine off.
What you ahve to do prove the components one by one.
I.e. the rear vac actuator
The solenoid valve (although new its worth checking it)
etc.
The solenoid valve is directly operated by the ecu
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Like "The Master" has said Johnny you have to give it death and keep blipping quickly for it to move sometimes. Give it a go it maybe actually working with a bit of luck :y
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Nope...engine off.
What you ahve to do prove the components one by one.
I.e. the rear vac actuator
The solenoid valve (although new its worth checking it)
etc.
The solenoid valve is directly operated by the ecu
Have just checked rear actuator by directly connecting vac pipe, works fine. Have checked operation of solenoid by carrying out output test of solenoid - works fine. Only thing left to check is to apply 12V directly to solenoid with engine running, will report back with findings. If 12V direct to solenoid works would this prove an ECU problem!
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Like "The Master" has said Johnny you have to give it death and keep blipping quickly for it to move sometimes. Give it a go it maybe actually working with a bit of luck :y
myself and lazydocker ripped it a new a-hole yesterday and it failed every-time. I appreciate it needs a good blast but we were giving it full throttle and nothing.
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Well I've tried everything the master has suggested and still no rear multiram. Could the ECU be the reason, does it need to programmed to operate the multirams at certain revs. Wiring is intact. Just looking upon this as a lost cause :'(
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Well I've tried everything the master has suggested and still no rear multiram. Could the ECU be the reason, does it need to programmed to operate the multirams at certain revs. Wiring is intact. Just looking upon this as a lost cause :'(
Spring broke? does it move freely and return by hand, does it make that squidgy pumping noise when you move it. Struggling now... does it show?
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Well I've tried everything the master has suggested and still no rear multiram. Could the ECU be the reason, does it need to programmed to operate the multirams at certain revs. Wiring is intact. Just looking upon this as a lost cause :'(
Spring broke? does it move freely and return by hand, does it make that squidgy pumping noise when you move it. Struggling now... does it show?
does everything it should chris, i outta ideas now. when you say does it show, do you mean by the power - without another 2.5 to compare it with, i'm not sure. oh well just have to live with it. thanks chris :y
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Johnny have you checked all the vac pipes? that there is vac from the brake servo pipe? the rear multi ram is plugged in? tried revving the car up and quickly blipping ?
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Johnny have you checked all the vac pipes? that there is vac from the brake servo pipe? the rear multi ram is plugged in? tried revving the car up and quickly blipping ?
yep all checked LK - that's why i can't understand it not working :-/
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We both checked everything...... Several times and still can't seem to get it going >:( >:( >:(
How's it running on gas?
I still don't think it's down much on power... Well, nothing another 500cc wouldn't fix ;) ;)
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We both checked everything...... Several times and still can't seem to get it going >:( >:( >:(
How's it running on gas?
I still don't think it's down much on power... Well, nothing another 500cc wouldn't fix ;) ;)
running fine thanks.
think i need to find another 500cc then to compensate for breaked multiram :D