Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: x1xv45 on 01 December 2009, 12:08:46
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The little engine symbol lights up and stays lit, engine cuts out randomly or goes to some sort of limp-mode. Especially cuts out if trying to accelerate any amount. The symbol sometimes goes out again on a restart, but is back after a while.
I did the paperclip test and get a code 10 - repeats 3 times, then a single 1, then 10 three times again and so on.
It's not fun going along the M25, suddenly losing power and having to coast to the hard shoulder across 2 lanes of heavy traffic.
Everything was ok until this fault appeared - no other warning signs that I noticed.
Any advice would be greatly appreciated.
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either crankshaft or camshaft sensor probably, someone will probably be more helpfull soon
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do a search for 'paper clip test' do that and post up the codes :y
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Paperclip instructions are [size=20][ch8595][/size]
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Thanks for the replies. As this is a 2.0l year 2000, I see it's a four digit code, so I'm getting a code 0100. This is with ignition in position 2.
Is that cam or crank sensor? I can't find a table of codes for the 2.0l.
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0100 is MAF (mass airflow) located between airfilter box and throttle housing. Check connector and also check for air leaks round vac pipes. Easy way is to use carb cleaner with engine idling, spray in area of pipes, any noticeable difference in engine, you`ve found a leak :y
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Thanks RobG - I'll have to try that tomorrow in daylight so I can see what I'm doing. I don't have carb cleaner - would WD40 or penetrating oil be any use to try what you said?
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Thanks RobG - I'll have to try that tomorrow in daylight so I can see what I'm doing. I don't have carb cleaner - would WD40 or penetrating oil be any use to try what you said?
No. Use aerosol carb cleaner
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Thanks RobG - I'll have to try that tomorrow in daylight so I can see what I'm doing. I don't have carb cleaner - would WD40 or penetrating oil be any use to try what you said?
sorry mate, no
carb / brake cleaner or damp / easy start will do the job :y
just make sure the engine is not too hot and don't spray it on the exhaust manifolds :y
the stuff is flamible ;)
edit must type faster ;D ;D
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Thanks for the replies. As this is a 2.0l year 2000, I see it's a four digit code, so I'm getting a code 0100. This is with ignition in position 2.
Is that cam or crank sensor? I can't find a table of codes for the 2.0l.
http://www.omegaowners.com/forum/YaBB.pl?num=1206569945 :y
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Cheers, Rob for the code table, also tiger - I'll try not to blow up the car.
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Thanks RobG - I'll have to try that tomorrow in daylight so I can see what I'm doing. I don't have carb cleaner - would WD40 or penetrating oil be any use to try what you said?
sorry mate, no
carb / brake cleaner or damp / easy start will do the job :y
just make sure the engine is not too hot and don't spray it on the exhaust manifolds :y
the stuff is flamible ;)
edit must type faster ;D ;D
I wouldn't use "damp start". That forms an insulating film over whatever you spray it on and will probably knacker the sensor for good. I find they don't normally respond to cleaning. :'(
Kevin
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Thanks RobG - I'll have to try that tomorrow in daylight so I can see what I'm doing. I don't have carb cleaner - would WD40 or penetrating oil be any use to try what you said?
sorry mate, no
carb / brake cleaner or damp / easy start will do the job :y
just make sure the engine is not too hot and don't spray it on the exhaust manifolds :y
the stuff is flamible ;)
edit must type faster ;D ;D
I wouldn't use "damp start". That forms an insulating film over whatever you spray it on and will probably knacker the sensor for good. I find they don't normally respond to cleaning. :'(
Kevin
good point that :y
noted :y
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mix white vinigar with some water, teaspoon of viniga to full bottle of water put in spary bottle, also good for cleaning windows. :y
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mix white vinigar with some water, teaspoon of viniga to full bottle of water put in spary bottle, also good for cleaning windows. :y
How does that mixture help to check for air leaks round vac pipes? :-? :-? :-/
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mix white vinigar with some water, teaspoon of viniga to full bottle of water put in spary bottle, also good for cleaning windows. :y
How does that mixture help to check for air leaks round vac pipes? :-? :-? :-/
try it see what happens.
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mix white vinigar with some water, teaspoon of viniga to full bottle of water put in spary bottle, also good for cleaning windows. :y
How does that mixture help to check for air leaks round vac pipes? :-? :-? :-/
try it see what happens.
Would rather not mate!!
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Did the carb spray test - no noticeable change in engine noises. Then I took off the MAF sensor connector and sprayed some WD40 in it and reconnected (a suggestion from another forum) A short test run and no warning light or cut-outs, but I'm expecting it to come back.
From reading online, a possible culprit is the little breather holes in the throttle body - I've never had it off, although I've cleaned it and done the various breather hoses and pipes, and done the cam cover/crankcase breather recently. Is this a good place to look next? I'll report again after a decent run.
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50 miles + and no cutting out - town & country roads, 0 - 80mph. This seems too good to be true...
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the little breather holes in the throttle body
With clean breathers & at idle, the throttle butterflies are closed and the air into the engine should go through the IAC (idle air control valve).
Fumes from the crankcase should be sucked out of the little holes on the engine side of the butterflies. Oily mist from the crankases goes straight into the manifold.
When the little holes get blocked the crankcase fumes & oily mist come out of the larger pipes before the butterflies. Some of this muck builds up on the butterflies and in the throttle bodies to give a sticky throttle but most of it goes through the IAC which cakes up in the IAC to give symptoms of poor idling and random stalling & fast idle.
Clean the holes on the throttle bodies and the IAC. Use lots of carb cleaner in the IAC but don't poke anything into it, it is fragile inside.