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MOT test results fail
-> 206 Talk
#1: MOT test results fail Author: dan_manu, Location: Flintshire, North Wales PostPosted: Thu Jan 17, 2013 5:07 pm
    ----
not too bad as i can sort these out but its just my emissions im worried about, firstly of all it failed on -

- nearside headlamp aimed too high
- exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition
-windowscreen sticker (my sunstrip) or other obstruction encroaching by more than 10mm with zone A
-windowscreen sticker or other obstruction encroaching into the swept area by more than 40mm outside zone A
- nearside side repeater incorrect collour


now this is what im worried about and need advice please as i dont understand it, but the mechanic said that my exhaust was so big it was sucking in oxygen !? Embarassed

fast idle test - failed
engine speed 2500 - 3000rpm - not checked
co =< 0.30% 0.52% - fail
hc =< 200ppm 126ppm pass
wierd symbol i can put :S like an upside down 'Y' 0.97 - 1.03 1.048 - fail

second idle test: fail
engine speed 2500 - 3000rpm - not checked
co =< 0.30% - 0.33% = fail
hc =< 200ppm 91pmm - pass
(upside down Y) - 0.97 - 1.03 1.052 - fail

natural idle test - fail
engine speed 450 - 1500rpm not checked
co =< 0.50% 0.71% fail

advice please? bit of a dragging topic -.-
#2: Re: MOT test results fail Author: chinabluegti, Location: Pontypridd PostPosted: Thu Jan 17, 2013 5:11 pm
    ----
Do you still have the standard box? To get it through the MOT?
#3: Re: MOT test results fail Author: dan_manu, Location: Flintshire, North Wales PostPosted: Thu Jan 17, 2013 5:19 pm
    ----
yeah mate i got the standard back box, do u think this will pass me through the emissions test?
#4: Re: MOT test results fail Author: E5GDM, Location: Essex PostPosted: Thu Jan 17, 2013 5:34 pm
    ----
I don't think the back box will have any effect on the emissions. A good thrashing before the MOT to warn the cat up might help though.
#5: Re: MOT test results fail Author: dan_manu, Location: Flintshire, North Wales PostPosted: Thu Jan 17, 2013 5:38 pm
    ----
ahh il try that aswel, i left it for hour hour there in the cold before mot, any else suggestions?
#6: Re: MOT test results fail Author: namgaj, Location: Chasing Ash, Addaz and Lee........... hopefully catching Addaz and havin fun :P PostPosted: Thu Jan 17, 2013 6:01 pm
    ----
Put some "wynns pre MOT" or "Wynns emmisions reducer" in your fuel tank and give the carr a good hard drive
#7: Re: MOT test results fail Author: dan_manu, Location: Flintshire, North Wales PostPosted: Thu Jan 17, 2013 6:56 pm
    ----
do you think this will be enough to pass through the mot?
and does this look too cheap? www.ebay.co.uk/itm/WYN...2ebaf6f1fb
#8: Re: MOT test results fail Author: iainlovatt,  PostPosted: Fri Jan 18, 2013 3:02 am
    ----
You get much better chemicals to reduce emmissions in SHELL performance petrol, So fill up with that and get the car nice and hot for the re-test.
Part from that its a cheap fix for the car to have another year on the road.
#9: Re: MOT test results fail Author: namgaj, Location: Chasing Ash, Addaz and Lee........... hopefully catching Addaz and havin fun :P PostPosted: Fri Jan 18, 2013 5:33 pm
    ----
dan_manu wrote:
do you think this will be enough to pass through the mot?
and does this look too cheap? www.ebay.co.uk/itm/WYN...2ebaf6f1fb

THATS THE STUFF!!!! Shove some of that in, run it through and watch it pass Cool
#10: Re: MOT test results fail Author: Fifer, Location: Fife PostPosted: Sun Jan 20, 2013 5:24 am
    ----
What he may mean, as I had this before with a blitz system is that when they put the probe up the exhaust it can only reach so far. If the bore is too large then the gasses swirling out can also cause some normal air to enter the exhaust enough to interfere with the testers probe. If you could insert the probe further the problem would go away. But you cant. So reducing the bore size by fitting the old backbox should see it pass.
#11: Re: MOT test results fail Author: Addaz, Location: Suffolk PostPosted: Sun Jan 20, 2013 6:49 am
    ----
Or does he mean there is a leak in the exhaust system? Causing on the negative exhaust waves to draw in sed oxygen to throw out your emissions?

Had a bit of a giggle on the fact its too loud, at 107DB i still pass because its a subaru impreza Wink
-> 206 Talk


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