Thread: One for the wise and experienced...

Did you remove the butterfly in the intake housing when you blanked the engine? Is prudent to do this on a blanked engine.

If you leave the butterfly flap in place then you could put the engine in a situation it was never designed for, EGR closed (due to being blanked) and butterfly closed (as on overrun) this would create a vacuum/depression within the engine, that could cause damage to engine seals etc as well as other issues.

Garry

Is it true the blanking plate must have a hole in the middle to allow some continued airflow or it might throw a fault code because of air pressure?

Of course, it should be noted that blanking the EGR means the vehicle would probably fail an emissions test if it was ever tested. Failing an emissions test could make the vehicle unroadworthy as it would not comply with the manufacturers specifications to meet emissions laws at the time it was released to the market.
If the vehicle was found by an inspector to be unroadworthy because it had been modified by the owner the registration could be cancelled and the insurance company could refuse to payout on a claim, so the owner could end up with a worthless pile of spare parts.
It does happen. I don't know about all the states but I believe Queensland has a mobile emissions testing scheme. In Victoria 10,000 vehicles were required to be tested last year. Owners are sent a notice requiring the vehicle to be taken to a testing station by a certain date. If the vehicle fails the test or the owner fails to present the vehicle for testing then the registration can be cancelled and the owner fined.
So that's a risk those who blank their EGRs are choosing to take. Hate to be a killjoy, but I think people should think carefully about the implications before rushing into modifying their vehicles.
More than a thousand Australians are said to die from illnesses associated with vehicle emissions in Australia every year, which is similar to the road toll from crashes, so this is a serious issue and it's not going away. If anything the enforcement is likely to become more rigorous, particularly following the VW 'dieselgate' scandal. So, think carefully is my advice.

Originally Posted by 101RRS

Did you remove the butterfly in the intake housing when you blanked the engine? Is prudent to do this on a blanked engine.

If you leave the butterfly flap in place then you could put the engine in a situation it was never designed for, EGR closed (due to being blanked) and butterfly closed (as on overrun) this would create a vacuum/depression within the engine, that could cause damage to engine seals etc as well as other issues.

Garry

Hi Gary
I did ask the question about the butterfly flap and was told by Alex at Auto Code that it was not necessary to remove.
Might also be controlled differently by the Remap.
I was also told that I could leave the pipes on as well and didn't need to worry about the blanking plates. But if the EGR valves still leaked even when the valves were closed it could bring up fault on the ECU.

Regards Tony

Originally Posted by Disco@136

Hi Gary
I did ask the question about the butterfly flap and was told by Alex at Auto Code that it was not necessary to remove.
Might also be controlled differently by the Remap.
I was also told that I could leave the pipes on as well and didn't need to worry about the blanking plates. But if the EGR valves still leaked even when the valves were closed it could bring up fault on the ECU.

Regards Tony

I strongly suggest you remove it....

Under overrun conditions it’s not doing your motor any favours..

Also very odd that he opened an early ECU like that when a simple OBD Access is possible.

Originally Posted by DiscoMick

Is it true the blanking plate must have a hole in the middle to allow some continued airflow or it might throw a fault code because of air pressure?

Of course, it should be noted that blanking the EGR means the vehicle would probably fail an emissions test if it was ever tested. Failing an emissions test could make the vehicle unroadworthy as it would not comply with the manufacturers specifications to meet emissions laws at the time it was released to the market.
If the vehicle was found by an inspector to be unroadworthy because it had been modified by the owner the registration could be cancelled and the insurance company could refuse to payout on a claim, so the owner could end up with a worthless pile of spare parts.
It does happen. I don't know about all the states but I believe Queensland has a mobile emissions testing scheme. In Victoria 10,000 vehicles were required to be tested last year. Owners are sent a notice requiring the vehicle to be taken to a testing station by a certain date. If the vehicle fails the test or the owner fails to present the vehicle for testing then the registration can be cancelled and the owner fined.
So that's a risk those who blank their EGRs are choosing to take. Hate to be a killjoy, but I think people should think carefully about the implications before rushing into modifying their vehicles.
More than a thousand Australians are said to die from illnesses associated with vehicle emissions in Australia every year, which is similar to the road toll from crashes, so this is a serious issue and it's not going away. If anything the enforcement is likely to become more rigorous, particularly following the VW 'dieselgate' scandal. So, think carefully is my advice.

Tampering and removal - correct, non-compliant.

Road side sniffer test - All BAS tunes will pass. Can not speak for Autocode.