Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: stumpy451 on 13 August 2007, 16:38:09
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have had my car for about 4 months and had no problems. it ran out of petrol on sunday and i put 15 litres in and some red ex. now there is a warning light on. it is a picture of an engine with a spark through it. it keeps stalling even when driving. its an automatic. when it stalls i still have power steering untill it rolls to a stop then nothing. when i try to restart it, it just turns over but eventualy just picks up but then within a few hundered metres stalls again. any help would be apreciated thanks.
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Sounds like a crankshaft sensor failure or possibly an immobilizer fail
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Due to the running out of fuel, I would also get a new fuel filter and fit it. Running problem could be a lack of fuel supply caused by a blocked filter. This would cause a lack of fuel pressure which may trigger the EML. Could also be a fouled plug causing poor sparking which may also trigger the EML. This is just a theory.
Symptoms are like a crank sensor, but I have read in the past that when they die no amount of cranking will get it started again until the engine has cooled down. Have you have starting issues in the past? By this I mean has the engine taken a long time to start?
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sounds like crank sensor if you have a V6 there's a how to
here....http://www.omegaowners.com/forum/YaBB.pl?num=1174321688
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Due to fuel prob, replace the fuel filter anyway...
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hi thanks for all your posts does anyone know of where i can get a fuel filter and how much?
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vaux ones are about £15, its the plastic ends that aree a pain in the a$$ to deal with
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Have you tried to paperclip test it to see what codes can be seen if only to confirm the crank sensor that has already been mentioned.
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how much redex did you add to the £15?
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the bottle treats 1 full tank so i put about about a 1/4 to 1/2 bottle in
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if i press the accelerator to the floor then start it it will start and rev high but when the revs come back down it just dies again.
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the situation you tell give me the idea of fuel air mixture problem.Either too much air or less amount of fuel can cause this.Whats the mileage of car? What are the codes from the ECU ?
PS: Together crank sensor problem I dont think you can rev high
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I wonder if the Idle Control valve is sticking? its an auto so when you ran out of fuel it could well have wound fully open to try to keep the rpm up.
Its easy to check, remove it and flush the valve with WD40 or carb cleaner then add a little light oil and refit.
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thanks for all your answers
just an update I have had the fuel filter changed and it still wouldn’t run so I got a mobile mechanic to run a diagnostics and it said that the mass air flow meter problem. I asked Autosuplies and they quoted me £220! so I got one from a local vehicle dismantlers and he assured me that it was from my car but the plug is different. so I need to find one. any ideas people?
cheers
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The general concensus on here is that MAFs very rarely go wrong and that this fault code can be caused by many other problems, specifically air leaks, leaky EGR valves and the like. I certainly wouldn't fork out that sort of money without more investigation. Apparently MAFs can be cleaned with computer foam cleaner too.
Kevin
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Due to the running out of fuel, I would also get a new fuel filter and fit it. Running problem could be a lack of fuel supply caused by a blocked filter. This would cause a lack of fuel pressure which may trigger the EML. Could also be a fouled plug causing poor sparking which may also trigger the EML. This is just a theory.
Symptoms are like a crank sensor, but I have read in the past that when they die no amount of cranking will get it started again until the engine has cooled down. Have you have starting issues in the past? By this I mean has the engine taken a long time to start?
my mv6 just had a cranksensor fail. i would cut out a lot and then not restart. in the mornings i'd have to crank it for about 4minutes to start it.
good luck
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sorry MAF, EGR????
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if i unplug the air flow meter then it will start and idle normaly.if i plug it back in while its running it will idle for 5 seconds then die.
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if i unplug the air flow meter then it will start and idle normaly.if i plug it back in while its running it will idle for 5 seconds then die.
possible its failed, but rare. Check for airleaks first, esp if it backfired when you ran out of fuel
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thanks for all your help people. it was the mass air flow meter that was triggering the EML and stopping the car from idleing. the fuel filter was also bloked. now i have replaced both and the car again runs fine. thanks again. stumpy451 ;D:y ;D:y ;D:y