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 Corolla failed on emissions?

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RichieMcleod
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PostSubject: Corolla failed on emissions?   Thu Jan 07, 2016 5:46 pm

Have a 97 e10 corolla lads put it through the test today and the tester said emisions are all over the place Razz anyone know by the fail sheet if the emisions are sky high or nothing diptane won't sort Very Happy haven't a clue what's high or low on these readings.
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StarletJames
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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 5:50 pm

Burning a gallon of oil id say is it?
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pete87
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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 5:54 pm

Yeah looks high, if I'm reading it right
HC 268 ppm,  think if it over 150 it not the best
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anto16v

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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 5:56 pm

Hydro carbon reading is very high!!
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Andyseadog
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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 6:11 pm

Lambda reading is very very low. Suggests the car is running fairly rich, massive fail on carbon monoxide and hydrocarbons too.

Running like that for a long time stands a fair chance of ruining your cat anyway.

What condition is the engine in? Recently serviced? Burning oil? Misfiring? High mileage?

First port of call should be to try get your lambda reading back to close to 1.0, this could be cause by the lambda sensor itself, or the air flow meter, leaks at the the exhaust or induction side... then a good service, new air filter, plugs, good oil, clean throttle body and check for vaccum leaks.

Once it's running well, go back for a re-test and see where you are, cat could need to be replaced anyway from previous damage. At least after the initial work, you should know where you are with the second reading.
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RichieMcleod
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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 6:15 pm

Right lads I should of stated first the car had 98 thousand miles on it. Timing belt snapped so I don't the belt myself it's running fine but I'm worried I've set the timing a bit off as its the first belt I've ever done Razz
Would this effect emisions?
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DjNr8

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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 6:52 pm

If timing is off it'll affect the running anyway. Can't be helping the emissions. It's very very bad

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It really is like the options catalogue threw up in there.
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RichieMcleod
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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 7:34 pm

It's running 100% anyway and I'm 99% sure the timing is right. It's not burning a drop of oil but it's awfully slow for some reason Razz
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DjNr8

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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 7:47 pm

Timing might be retarded. I'd bring it over to sham if I were you

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It really is like the options catalogue threw up in there.
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cannon91
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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 9:31 pm

Yeah if timing is off it will put the emissions way up.

Put it this way, my uncles Escort cosworth had the same emission readings with no cat
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michael.curran.524

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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 9:59 pm

If you used a timing light on her now would it not tell you wether it's correct or not ?
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RichieMcleod
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PostSubject: Re: Corolla failed on emissions?   Thu Jan 07, 2016 10:02 pm

It probably would be I haven't a clue how to use one Razz
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5e colin

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PostSubject: Re: Corolla failed on emissions?   Fri Jan 08, 2016 9:50 am

is there even a cat on the car ??
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RichieMcleod
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PostSubject: Re: Corolla failed on emissions?   Fri Jan 08, 2016 7:35 pm

Yea there's a cat in it. Just found the previous Nct report it has only done 4000 miles since the last test i can't understand how the emissions are so bad.
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Foggy
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PostSubject: Re: Corolla failed on emissions?   Fri Jan 08, 2016 7:57 pm

Looks like you need a lambda sensor firstly
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BiMotoMan
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PostSubject: Re: Corolla failed on emissions?   Fri Jan 08, 2016 8:04 pm

Lambda sensor for sure.
and
Catalist might b blocked.
undo lambda sensor (leave it conected) and go for drive with exhaust leak before cat to release pressure.
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RichieMcleod
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PostSubject: Re: Corolla failed on emissions?   Sat Jan 09, 2016 12:17 am

Cheers sham I'll give it a service and give that a go
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5e colin

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PostSubject: Re: Corolla failed on emissions?   Sat Jan 09, 2016 12:58 pm

BiMotoMan wrote:
Lambda sensor for sure.
and
Catalist might b blocked.
undo lambda sensor (leave it conected) and go for drive with exhaust leak before cat to release pressure.


that wont unblock cat will it ???
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BiMotoMan
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PostSubject: Re: Corolla failed on emissions?   Sat Jan 09, 2016 3:02 pm

5e colin wrote:
BiMotoMan wrote:
Lambda sensor for sure.
and
Catalist might b blocked.
undo lambda sensor (leave it conected) and go for drive with exhaust leak before cat to release pressure.


that wont unblock cat will it ???
no, but if cat is partially blocked, it will release pressure and she should get power back.
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5e colin

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PostSubject: Re: Corolla failed on emissions?   Sat Jan 09, 2016 3:51 pm

haaaa clever !!! never thought of that
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