Diesel emissions

Scott MOT tester Posts: 44 Last Online: May 6, 2024 8:31:06 GMT 1 Likes: 35	Diesel emissions Oct 13, 2023 14:17:27 GMT 1 mike617 likes this Back to Top Quote Select Post Deselect Post Link to Post Back to Top Post by Scott on Oct 13, 2023 14:17:27 GMT 1 Testing diesel emissions on vehicles with soft limiters, i.e. Audi etc... Is it acceptable to disable the traction control and dip the clutch to make the engine rev to maximum?
	Last Edit: Oct 13, 2023 14:20:47 GMT 1 by Scott -

rocket AE/Manager/Owner Posts: 3,442 Class tested: 4 Last Online: May 6, 2024 9:12:21 GMT 1 Likes: 1,046	Diesel emissions Oct 13, 2023 14:23:40 GMT 1 nitros44, mike617, and 1 more like this Back to Top Quote Select Post Deselect Post Link to Post Back to Top Post by rocket on Oct 13, 2023 14:23:40 GMT 1 No test as presented it aint our fault if they have cheat software and DVSA know about it

dwain
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Diesel emissions Oct 13, 2023 15:21:38 GMT 1 via mobile Scott likes this

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Post by dwain on Oct 13, 2023 15:21:38 GMT 1

Oct 13, 2023 14:17:27 GMT 1 Scott said:

Testing diesel emissions on vehicles with soft limiters, i.e. Audi etc... Is it acceptable to disable the traction control and dip the clutch to make the engine rev to maximum?

I do.

dizzydiver
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Diesel emissions Oct 13, 2023 19:45:19 GMT 1 rocket, mike617, and 1 more like this

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Post by dizzydiver on Oct 13, 2023 19:45:19 GMT 1

Oct 13, 2023 15:21:38 GMT 1 dwain said:

Oct 13, 2023 14:17:27 GMT 1 Scott said:

Testing diesel emissions on vehicles with soft limiters, i.e. Audi etc... Is it acceptable to disable the traction control and dip the clutch to make the engine rev to maximum?

I do.

If anything goes bang, you could be liable.
Test as presented, according to testing manual.
Don't invite trouble.

aylesburyjock
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Diesel emissions Oct 13, 2023 21:10:11 GMT 1 via mobile mike617 likes this

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Post by aylesburyjock on Oct 13, 2023 21:10:11 GMT 1

Oct 13, 2023 14:17:27 GMT 1 Scott said:

Testing diesel emissions on vehicles with soft limiters, i.e. Audi etc... Is it acceptable to disable the traction control and dip the clutch to make the engine rev to maximum?

Why?

nitros44 MOT tester Posts: 3,808 Class tested: 4, 7 Last Online: Mar 6, 2013 1:09:15 GMT 1 Likes: 1,971	Diesel emissions Oct 14, 2023 8:19:13 GMT 1 via mobile mike617 likes this Back to Top Quote Select Post Deselect Post Link to Post Back to Top Post by nitros44 on Oct 14, 2023 8:19:13 GMT 1 Test as presented every time
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stealth
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Post by stealth on Oct 14, 2023 11:28:10 GMT 1

Oct 13, 2023 14:17:27 GMT 1 Scott said:

Testing diesel emissions on vehicles with soft limiters, i.e. Audi etc... Is it acceptable to disable the traction control and dip the clutch to make the engine rev to maximum?

Better go read the Manual.

If I was to agree with you, that would make us both wrong !

stealth
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Diesel emissions Oct 14, 2023 11:28:46 GMT 1 via mobile

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Post by stealth on Oct 14, 2023 11:28:46 GMT 1

Oct 13, 2023 15:21:38 GMT 1 dwain said:

Oct 13, 2023 14:17:27 GMT 1 Scott said:

Testing diesel emissions on vehicles with soft limiters, i.e. Audi etc... Is it acceptable to disable the traction control and dip the clutch to make the engine rev to maximum?

I do.

Better go read the Manual, you of all people should know better.

Last Edit: Oct 14, 2023 11:41:46 GMT 1 by stealth -

If I was to agree with you, that would make us both wrong !

dwain
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Diesel emissions Oct 14, 2023 12:17:39 GMT 1 via mobile stealth likes this

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Post by dwain on Oct 14, 2023 12:17:39 GMT 1

Oct 13, 2023 15:21:38 GMT 1 dwain said:

Oct 13, 2023 14:17:27 GMT 1 Scott said:

Testing diesel emissions on vehicles with soft limiters, i.e. Audi etc... Is it acceptable to disable the traction control and dip the clutch to make the engine rev to maximum?

I do.

I did.

From manual

Maximum engine revs cannot be achieved on some vehicles due to design features. If this is the case, the vehicle must be tested as presented. Such vehicles, as well as some with low emission diesel engines (mainly Euro IV and onwards) may fail to trigger a reading on the DSM.

stealth Ex VOSA/DVSA Posts: 2,022 Last Online: Mar 1, 2018 23:06:10 GMT 1 Likes: 1,657	Diesel emissions Oct 14, 2023 13:57:02 GMT 1 via mobile Back to Top Quote Select Post Deselect Post Link to Post Back to Top Post by stealth on Oct 14, 2023 13:57:02 GMT 1 Oct 14, 2023 12:17:39 GMT 1 dwain said: Oct 13, 2023 15:21:38 GMT 1 dwain said: I do. I did. 😆 👍👍
	If I was to agree with you, that would make us both wrong !

dizzydiver
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Diesel emissions Oct 14, 2023 23:32:48 GMT 1

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Post by dizzydiver on Oct 14, 2023 23:32:48 GMT 1

Oct 14, 2023 12:17:39 GMT 1 dwain said:

Oct 13, 2023 15:21:38 GMT 1 dwain said:

I do.

I did.

From manual

Maximum engine revs cannot be achieved on some vehicles due to design features. If this is the case, the vehicle must be tested as presented. Such vehicles, as well as some with low emission diesel engines (mainly Euro IV and onwards) may fail to trigger a reading on the DSM.

If doesn't trigger a reading, you can advise emissions too low to register on smoke meter.
You are given a get out clause, use it.
Don't invite trouble by going beyond the requirements.

Hooters
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Diesel emissions Oct 15, 2023 9:03:30 GMT 1 wally and dizzydiver like this

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Post by Hooters on Oct 15, 2023 9:03:30 GMT 1

If it doesn't trigger, be sure to hand-write the prescribed 'smoke ticket' for your records.
Depending on your equipment, there may be no record saved to the hard drive (as you don't finish the screen prompts/procedure) so when DVSA check, you will have no record of carrying out the emissions test.

All advice is given in good faith and may reflect personal opinion only. It is always your own decision whether or not to follow this advice/opinion. The author accepts no responsibility for your actions and any consequences of these.

David
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Diesel emissions Oct 16, 2023 11:15:35 GMT 1

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Post by David on Oct 16, 2023 11:15:35 GMT 1

Oct 14, 2023 12:17:39 GMT 1 dwain said:

Oct 13, 2023 15:21:38 GMT 1 dwain said:

I do.

I did.

From manual

Maximum engine revs cannot be achieved on some vehicles due to design features. If this is the case, the vehicle must be tested as presented. Such vehicles, as well as some with low emission diesel engines (mainly Euro IV and onwards) may fail to trigger a reading on the DSM.

When no reading can be obtained a hand written note is issued to log.

From the Manual:

If you cannot get a reading or the DSM shows an error, you must make a manual record to show that the emissions limits were tested and met but the DSM could not register the reading.

If you cannot register the results in the meter, write down the following details and keep them for 3 months:

test station number
tester’s name
date and time
test number
vehicle type
vehicle registration number
that the vehicle passed the emissions test
no record was produced due to low emissions

Always test as presented

Last Edit: Oct 16, 2023 11:19:17 GMT 1 by David -

It’s not that I’m so smart, it’s just that I stay with problems longer.
—Albert Einstein

Scott MOT tester Posts: 44 Last Online: May 6, 2024 8:31:06 GMT 1 Likes: 35	Diesel emissions Oct 18, 2023 15:15:30 GMT 1 via mobile David likes this Back to Top Quote Select Post Deselect Post Link to Post Back to Top Post by Scott on Oct 18, 2023 15:15:30 GMT 1 Thank you all for your input and experiences. Test as presented 👍🏻

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Post by Scott on Oct 13, 2023 14:17:27 GMT 1

Post by rocket on Oct 13, 2023 14:23:40 GMT 1

Post by dwain on Oct 13, 2023 15:21:38 GMT 1

Post by dizzydiver on Oct 13, 2023 19:45:19 GMT 1

Post by aylesburyjock on Oct 13, 2023 21:10:11 GMT 1

Post by nitros44 on Oct 14, 2023 8:19:13 GMT 1

Post by stealth on Oct 14, 2023 11:28:10 GMT 1

Post by stealth on Oct 14, 2023 11:28:46 GMT 1

Post by dwain on Oct 14, 2023 12:17:39 GMT 1

Post by stealth on Oct 14, 2023 13:57:02 GMT 1

Post by dizzydiver on Oct 14, 2023 23:32:48 GMT 1

Post by Hooters on Oct 15, 2023 9:03:30 GMT 1

Post by David on Oct 16, 2023 11:15:35 GMT 1

Post by Scott on Oct 18, 2023 15:15:30 GMT 1