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Author Topic: Emission test help please  (Read 3059 times)

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ckz

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Emission test help please
« on: 14 May 2015, 17:41:36 »


<a href="http://s1314.photobucket.com/user/Tom2905100/media/Aviary%20Photo_130760946416382418_zpsp1ciehst.png.html" target="_blank"><img src="http://i1314.photobucket.com/albums/t569/Tom2905100/Aviary%20Photo_130760946416382418_zpsp1ciehst.png" border="0" alt=" photo Aviary Photo_130760946416382418_zpsp1ciehst.png"/></a>
http://i1314.photobucket.com/albums/t569/Tom2905100/Aviary%20Photo_130760946416382418_zpsp1ciehst.png

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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ckz

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Re: Emission test help please
« Reply #1 on: 14 May 2015, 21:44:25 »

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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flyer 0712

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Re: Emission test help please
« Reply #2 on: 14 May 2015, 22:44:33 »

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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LC0112G

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Re: Emission test help please
« Reply #3 on: 14 May 2015, 23:11:07 »


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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05omegav6

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Re: Emission test help please
« Reply #4 on: 14 May 2015, 23:17:54 »

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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LC0112G

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Re: Emission test help please
« Reply #5 on: 14 May 2015, 23:24:57 »

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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JamesV6CDX

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Re: Emission test help please
« Reply #6 on: 15 May 2015, 00:26:18 »

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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ckz

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Re: Emission test help please
« Reply #7 on: 15 May 2015, 04:31:53 »

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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JamesV6CDX

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Re: Emission test help please
« Reply #8 on: 15 May 2015, 05:23:06 »

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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05omegav6

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Re: Emission test help please
« Reply #9 on: 15 May 2015, 06:02:41 »

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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05omegav6

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Re: Emission test help please
« Reply #10 on: 15 May 2015, 06:58:11 »

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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steve6367

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Re: Emission test help please
« Reply #11 on: 15 May 2015, 07:08:23 »

The OP just seems angry he has to have the test at all  ???
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aaronjb

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Re: Emission test help please
« Reply #12 on: 15 May 2015, 07:42:17 »

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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terry paget

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Re: Emission test help please
« Reply #13 on: 15 May 2015, 07:57:34 »

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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Kevin Wood

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Re: Emission test help please
« Reply #14 on: 15 May 2015, 08:17:31 »

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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