Congratulations to vtecmec for winning May/June's Lude Of The Month, with his DIY Turbo BB1 build.

>>> Click Here For Profile <<<

Image

Emissions mot issue

As much of the Lude knowledge we have in one handy place
Wellhappy
Posts: 39
Joined: Thu Apr 20, 2023 12:45 pm
My Generation: 5G
XBOX GamerTag: Wellhappypea
Location: County Durham
Has thanked: 22 times
Been thanked: 9 times

Emissions mot issue

Post by Wellhappy » Wed Apr 26, 2023 3:32 pm

Scott560 wrote:
Wed Apr 26, 2023 3:26 pm
I mean does it come on at all? The light should come on and go off when the car is turned on and started. This is to confirm the bulb is working.

If the bulb is faulty or has been removed - you will not know if the engine management light is on or not.
will look more into it, the engine ect is all ok as we plugged in twice after running for a while and zero codes .. thanks mate will have another look

Wellhappy
Posts: 39
Joined: Thu Apr 20, 2023 12:45 pm
My Generation: 5G
XBOX GamerTag: Wellhappypea
Location: County Durham
Has thanked: 22 times
Been thanked: 9 times

Emissions mot issue

Post by Wellhappy » Wed Apr 26, 2023 3:33 pm

Scott560 wrote:
Wed Apr 26, 2023 3:26 pm
I mean does it come on at all? The light should come on and go off when the car is turned on and started. This is to confirm the bulb is working.

If the bulb is faulty or has been removed - you will not know if the engine management light is on or not.
just played about and now come on and go off again :)

Wellhappy
Posts: 39
Joined: Thu Apr 20, 2023 12:45 pm
My Generation: 5G
XBOX GamerTag: Wellhappypea
Location: County Durham
Has thanked: 22 times
Been thanked: 9 times

Emissions mot issue

Post by Wellhappy » Wed Apr 26, 2023 5:21 pm

Scott560 wrote:
Wed Apr 26, 2023 2:15 pm
Once you have fixed any leak in the exhaust, it will take a while (and multiple restarts) for the engine fueling to be trimmed down. It's not always an instant thing, especially if the lambda sensor is tired or if the car hasn't driven much since the fix.

Not sure if the 2.0 has an EGR valve which might want checking isn't sticking?

Does the engine light flash on and go off when starting the car?
now you have me thinking lol I will look and see if it has an egr … I don’t think so but tbh I have not looked for it

User avatar
JEBB4
Supporter 2014
Posts: 1225
Joined: Tue Feb 18, 2014 7:28 pm
My Generation: 5G
Location: Australia
Has thanked: 78 times
Been thanked: 63 times

Emissions mot issue

Post by JEBB4 » Wed Apr 26, 2023 9:39 pm

Try disconnecting the battery for a while this may reset the fuel trims, also if not done already check coolant temp is reading correctly, can you see any live data with the tool your using to check codes?
Have you physically removed o2 sensor and clean the part inside the exhaust? Also check condition of the catalytic converter whilst in there.. try cleaning the map sensor.. what condition are the spark plugs in, might be clue to how the engines running

That being said I think it may be the Cat that’s no longer converting as well as it should.. try getting it really hot before test…
Good luck
Jamie P 2013 wrote:i like tits :D
My BB6 build
viewtopic.php?f=17&t=54187

My BB2 build (yang)(WRITTEN OFF AND SOLD)
viewtopic.php?f=17&t=18866

My BB4 build (yin) (SOLD TO DRAX)
viewtopic.php?f=17&t=12087&hilit=JEBB4+ ... ty#p203321

Wellhappy
Posts: 39
Joined: Thu Apr 20, 2023 12:45 pm
My Generation: 5G
XBOX GamerTag: Wellhappypea
Location: County Durham
Has thanked: 22 times
Been thanked: 9 times

Emissions mot issue

Post by Wellhappy » Wed Apr 26, 2023 11:02 pm

Thanks
JEBB4 wrote:
Wed Apr 26, 2023 9:39 pm
Try disconnecting the battery for a while this may reset the fiel trims, also if not done already check coolant temp is reading correctly, can you see any live data with the tool your using to check codes?
Have you physically removed o2 sensor and clean the part inside the exhaust? Also check condition of the catalytic converter whilst in there.. try cleaning the map sensor.. what condition are the spark plugs in, might be clue to how the engines running

That being said I think it may be the Cat that’s no longer converting as well as it should.. try getting it really hot before test…
Good luck
thank you :) yes I can see live data, changed all the sparks and fresh oil, and filters all done, I have a feeling it’s maybe the cat but hoping not as I guess they are hard to come by and expensive, I will try the battery thing and clean the o2 and exhaust tomorrow with another fuel flush and see what the readings are (a mates garage said he will now test them for me ) if that all fails a new cat which is annoying as once it’s through the mot it’s having a brand new full de cat exhaust fitted lol 😂 thanks again for the advise it’s much appreciated.

User avatar
JEBB4
Supporter 2014
Posts: 1225
Joined: Tue Feb 18, 2014 7:28 pm
My Generation: 5G
Location: Australia
Has thanked: 78 times
Been thanked: 63 times

Emissions mot issue

Post by JEBB4 » Thu Apr 27, 2023 1:19 am

Get a cheap uni-cat welded in, I have 2 old Honda cats sat here sadly I’m in Australia so probably no help :lol:
Jamie P 2013 wrote:i like tits :D
My BB6 build
viewtopic.php?f=17&t=54187

My BB2 build (yang)(WRITTEN OFF AND SOLD)
viewtopic.php?f=17&t=18866

My BB4 build (yin) (SOLD TO DRAX)
viewtopic.php?f=17&t=12087&hilit=JEBB4+ ... ty#p203321

Wellhappy
Posts: 39
Joined: Thu Apr 20, 2023 12:45 pm
My Generation: 5G
XBOX GamerTag: Wellhappypea
Location: County Durham
Has thanked: 22 times
Been thanked: 9 times

Emissions mot issue

Post by Wellhappy » Thu Apr 27, 2023 1:40 pm

JEBB4 wrote:
Thu Apr 27, 2023 1:19 am
Get a cheap uni-cat welded in, I have 2 old Honda cats sat here sadly I’m in Australia so probably no help :lol:
I found and cleaned the EGR out which freely moved however was quite clogged up, so a good long clean and moves way better now, cleaned all o2 parts and filled with premium and a high dose of cleaner, bombed it about at high revs for ages and already smells no way near as rich and way less smoke 💨 so plugging in today and testing emissions again … I expect them to be down and if not as you said a cat for £54.55 and should be perfect :)

Wellhappy
Posts: 39
Joined: Thu Apr 20, 2023 12:45 pm
My Generation: 5G
XBOX GamerTag: Wellhappypea
Location: County Durham
Has thanked: 22 times
Been thanked: 9 times

Emissions mot issue

Post by Wellhappy » Fri Apr 28, 2023 3:32 pm

And we only passed ! 😀
You do not have the required permissions to view the files attached to this post.

User avatar
JEBB4
Supporter 2014
Posts: 1225
Joined: Tue Feb 18, 2014 7:28 pm
My Generation: 5G
Location: Australia
Has thanked: 78 times
Been thanked: 63 times

Emissions mot issue

Post by JEBB4 » Fri Apr 28, 2023 9:50 pm

Good work! :thumbup:
Jamie P 2013 wrote:i like tits :D
My BB6 build
viewtopic.php?f=17&t=54187

My BB2 build (yang)(WRITTEN OFF AND SOLD)
viewtopic.php?f=17&t=18866

My BB4 build (yin) (SOLD TO DRAX)
viewtopic.php?f=17&t=12087&hilit=JEBB4+ ... ty#p203321

User avatar
toadster
Posts: 1858
Joined: Thu Feb 16, 2012 5:21 pm
My Generation: 5G
Location: Norfolk
Has thanked: 57 times
Been thanked: 136 times

Emissions mot issue

Post by toadster » Fri Apr 28, 2023 11:30 pm

Lo :D
Yippee :mrgreen:
Cheers ;)
Toadster
Image

Post Reply

Return to “Guides / How to's / Tech Section”