Omega Owners Forum
Omega Help Area => Omega General Help => Topic started by: ckz on 14 May 2015, 17:41:36
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right i hope one of them links worked.
could anybody help me by finding out what needs to be done to get this bloody Emissiontest right.
tryd cata clean, leaded full, sparks less then 1000 miles, airfilter 4 month old, oilfilter changed last time around 8000 miles, oil less then 500 but no filter this time.
what can i do without spending money and bbuying to get this emission right.
this car costed far to much now and im not prepared to spend more then 500 a year on a car.
serious answers on help please i argued anough with this oppsing mot station about useless saving the world crap on that.
there suggestions ending up in they making enough money to feed there f@@@ kids and cant promisse to get it right.
thanks in advance
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well looks like nobody is interested in help or there is no help unless feeding some suppliers or garages kids.
would there be an option cut the bloody catalisers out and get straight pipes on - it can be tested as non cataliser car and would pass?
guess that would be a cheaper option as buying even more for this car which is a big disapointment now.
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My previous omega (desmond) was always a sod to get through the emissions, I then found a tester who gave the car far more time and made a determined effort to allow it to just run while standing there for ages and after 3 attempts it just scrapped through,,this he did for 3 years for me and each time it passed....So when this omega wants the m.o.t, I know where I am taking it :y
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could anybody help me by finding out what needs to be done to get this bloody Emissiontest right.
tryd cata clean, leaded full, sparks less then 1000 miles, airfilter 4 month old, oilfilter changed last time around 8000 miles, oil less then 500 but no filter this time.
what can i do without spending money and bbuying to get this emission right.
this car costed far to much now and im not prepared to spend more then 500 a year on a car.
serious answers on help please i argued anough with this oppsing mot station about useless saving the world crap on that.
there suggestions ending up in they making enough money to feed there f@@@ kids and cant promisse to get it right.
thanks in advance
I hope not. Leaded fuel will wreck the catalysts.
would there be an option cut the bloody catalisers out and get straight pipes on - it can be tested as non cataliser car and would pass?
That won't work. Cars registered after 1st Aug 1992 must pass the relevant cat test, and you stand no chance of it doing that if you de-cat it.
See what others say, but, worst case is needing new cat and/or lambda sensors, and from what you're saying that's likely outside your budget. :-[
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Agreed, if you've put anything other than unleaded or super unleaded fuel in then expect the cats to be dead :y
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The figures imply it's running rich - which mean it's either not getting enough air, or getting too much fuel. Assuming there are no trouble codes currently stored, and no misfires when driving, I think my next step would be to Tech1/2 it to make sure the coolant temperature sensor is giving valid values. And if that's Ok then replace the MAF sensor with an known good one.
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Have you considered the fact that, perhaps the testers motive for failing your car, is because it doesn't comply with emissions requirements, and they are showing some integrity by following the rules, as opposed to needing to feed thier "f****** kids?"
If your car fails the emissions... It's not thier fault!!
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well i considerd to dosomething about but not having a car which is disapointing and useless.
and also refuse paying another 500 in it just to pass some bloody emission test.
it running fine, it gos 39 miles to the gallong if need be,
i spend since january 500 into this car which i never get back whatever i do with it.
i cant leave it in the drive to sell parts.
i need a car every day so not having it is crap.
i didnt buy any vauzhall after i had a disapointing one 20 years back. seems vauxhall is like bmw - disapointing and cost a lot on silly things.
the car was so far good but not satisfy the costs of a new car per year.
if i want to feed someone by driving a car i can buy a new one or do whaat others do - just not care of the car at all because its not worth it.
and to cats - i never believed in them. wste of money for some stupid ideas from some bloody world saver.
well looking for a proper car which is not disapointing today and give the vauxhall on for it.
dont care if it gets scrapeed now or not so long i get the pennys back it cost me the last couple month.
but it is defo not a vauxhall after that now. >:(
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Have you applied a really methodical diagnosis to this?
It doesn't have to be a cat or lambda fault.
What is the coolant temperature reporting? Is it going closed loop?
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Doubt it really matters tbh James... The Op comes across as someone quick to blame everyone or thing else... Emissions regs are what they are and there are some pretty simple things to be done to address the issues and get it passed...
Not least a tank of Vpower 99ron unleaded with two cans of Wynns fuel system cleaner, a brand new air filter and a twenty mile hammering on the way to a different Mot place, so that the car is tested red hot.
If mine can pass an emissions test on four cylinders, anything can :-X
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That said, if as an earlier post implies, the car has been run using leaded/lead replacement fuel, it will likely never pass an emissions test again unless the cats are replaced :-X
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The OP just seems angry he has to have the test at all ???
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The CO & HC seem to indicate it's running rich.
The lambda reading indicates it's running lean (15.34:1).
The two don't marry up so I'm going with an air leak into the exhaust in front of the forward O2 sensors confusing the LTFT & STFT.
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I agree with OP that emission tests are an expensive luxury we could do without, possibly desirable in calm California but worth little in draughty England. However, we are stuck with them. On 2 litre Omegas they wre a nightmare; The flexi section would fail after 8 years, I would fit aftermarket cat sections that would pass one MOT and fail the next. I now run 2 2.2 Omegas, both are due MOT in the next three months and I am nervous; both have Timken aftermarket cats fitted. I now avoid 4 cylinder Omegas for this reason.
However your car is a 2.5. I have never known a V6 fail MOT on emissions. What is the mileage? If high it could be dead catalysts. If so, someone on this forum may have a pair kicking around. I probably have somewhere. I have found changing cats got my 2 litre Omegas through MOTs, if only for a year.
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The CO & HC seem to indicate it's running rich.
The lambda reading indicates it's running lean (15.34:1).
The two don't marry up so I'm going with an air leak into the exhaust in front of the forward O2 sensors confusing the LTFT & STFT.
Possibly, but it could also be that the HC is a little high due to a lean misfire and the CO is pretty much straight-through because the cat isn't working due to the mixture being too lean. Bottom line - it needs a little investigation, but straightforward to find the problem with some thought and maybe a look at the live data.
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The CO & HC seem to indicate it's running rich.
The lambda reading indicates it's running lean (15.34:1).
The two don't marry up so I'm going with an air leak into the exhaust in front of the forward O2 sensors confusing the LTFT & STFT.
Possibly, but it could also be that the HC is a little high due to a lean misfire and the CO is pretty much straight-through because the cat isn't working due to the mixture being too lean. Bottom line - it needs a little investigation, but straightforward to find the problem with some thought and maybe a look at the live data.
Good point - it would be interesting to see what the fuel trims are doing and what the MAF output looks like
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I agree with OP that emission tests are an expensive luxury we could do without, possibly desirable in calm California but worth little in draughty England. However, we are stuck with them. On 2 litre Omegas they wre a nightmare; The flexi section would fail after 8 years, I would fit aftermarket cat sections that would pass one MOT and fail the next. I now run 2 2.2 Omegas, both are due MOT in the next three months and I am nervous; both have Timken aftermarket cats fitted. I now avoid 4 cylinder Omegas for this reason.
However your car is a 2.5. I have never known a V6 fail MOT on emissions. What is the mileage? If high it could be dead catalysts. If so, someone on this forum may have a pair kicking around. I probably have somewhere. I have found changing cats got my 2 litre Omegas through MOTs, if only for a year.
I can't agree, local air quality is an issue - although windy sometimes its not always windy and local air quality and so peoples health would suffer. (IMO naturally)
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The CO & HC seem to indicate it's running rich.
The lambda reading indicates it's running lean (15.34:1).
The two don't marry up so I'm going with an air leak into the exhaust in front of the forward O2 sensors confusing the LTFT & STFT.
Possibly, but it could also be that the HC is a little high due to a lean misfire and the CO is pretty much straight-through because the cat isn't working due to the mixture being too lean. Bottom line - it needs a little investigation, but straightforward to find the problem with some thought and maybe a look at the live data.
Good point - it would be interesting to see what the fuel trims are doing and what the MAF output looks like
Yes, exactly. :y
Something has probably brought the mixture outside the authority of the lambda loop to correct, whether it be MAF output, an intake air leak causing a lean mixture, an exhaust air leak causing the lambda sensor to read incorrectly, etc... Could even be that the engine isn't getting hot enough to go into closed loop (or the ECU thinks it's not hot enough).
The OP needs to get the live data read and to carry out some simple checks before buying any more snake oil. ;)
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I can't agree, local air quality is an issue - although windy sometimes its not always windy and local air quality and so peoples health would suffer. (IMO naturally)
Indeed and, if an emissions check fails, it's almost 100% of the time down to a fault that will be costing the owner of the car dearly in wasted fuel or the potential for other problems, so it's actually a useful thing to do aside from air quality.
The MOT emissions standards really aren't that taxing, after all.
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Didn't the OP say he was getting 39mpg? That seems so high it must really be running lean.. ;D
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Didn't the OP say he was getting 39mpg? That seems so high it must really be running lean.. ;D
39kpg more like ;D
I bet the roses in his garden are absolutely stunning... ::)
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right.
after second mot retest, i did not get any paper which indicates the fail of the emission.
it was not running on leaded. only suoer unleaded.
i lef the dashcam on also had a camcorder in the back of the car running with front view.
the result
as some people think iam moaning and blaiming someone else.
exlain this to me.
the guy which brought the car from the garage to there own mot place which is 4 miles from the place i was waiting was driving my car on a countrylane 95 miles per hour, for a start.
on the mot place, the failurewas a broken coilspring fron which was inspected by looking from the side only, the handbrake was applied trying to moive the car.
that both was failure before.
to the emission,
you can see on the cams,
the car was running in idle for around 10 minutes while the tester was on his maschines typing around. he never was behind the vehicle in this time.
how could the sonde be applied.
he opened the bonnet looked into the engibay shaked hios head and that was it.
car was brought back to me and i been told failed emission on same levels.
but they prepared to sort me out leaving it with them and he get a mechanic on it.
today MY mechanic called him regarding this camcorder evidence and he was very quiet and did hardly say nothing about.
he actually said if i would cime back he would sort me proper out.
yesterday when he said his mechanics wuld take care of thos proble i asked how muc and he said about 3 to 4 hours labour plus whatever needs to be exchanged or new to pass.
sorry but im not stpuid and feed him because he thinks iam a mug.
i just send him an email demanding my money back or i bring this official into the news which is a small community he lives in.
i dont really care if he needs customer to survive or not, thats not my problem. and i defently do not pay his wages or that fro is mechanics.
now the car is booked in to another garage without workshop. after i explained why the guy said look like he want to make a fast one with you.
so tell me about that then. instead having a go at me because iam not prepared paying out a lot to this guy for mot.
there is always a decition and a question this to it.
braindead acceptance means spending money and make others happy. dos it ?
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Sounds like the previous guy was guessing, so you're doing the right thing to demand your money back. :y
4 hours labour to diagnose an emissions fail? ;D Hopefully the next guy will be better.