I would like to install a plate or SS washer without the hole it, to block Exhaust from entering the intake manifold, while leaving the EGR valve free to open an close.

I have 2 questions:

Will any sensors detect the lack of exhaust gas and effect performance, or throw a Code ?

Does eliminating the exhaust gas from re-combustion and hence raising the combustion temp, effect engine reliability?

I what to keep the intake clean after the mess I found earlier.

Thanks,

Yes, there are sensors and yes, it will throw a code. Not only that, the engine control unit will reduce the engine power. Not much you can do about it. You're better off leaving the system alone and periodically cleaning the intake.

__________________
Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References

Thanks, Rick but do you know for sure or just asuming.
Could you be more specific, what sensors, where. It apears the Air Temp sensor is located before the EGR inlet. The EGR Sensor only senses the valve being opened or closed. I realize that blocking the vacume line will through a CEL and cause the Res flaps to default wide open. But with the EGR in place blocked and fuctioning, there may not be anything to detect the lack of exaust in the intake.

All this is of course for off road use only.

Gilly has told us before that the OM606 uses both the Mass Airflow Sensor and the Manifold Absolute Pressure sensor to monitor the EGR.

All the computer has to do is watch for a decrease in flow across the MAF as it opens the EGR valve - it doesn't need to monitor the position of the valve itself. Sorry, but they got ya.

__________________
Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References

Oops, it was DR.DIESEL, not Gilly. The thread is here.

__________________
Rick Miley
2014 Tesla Model S
2018 Tesla Model 3
2017 Nissan LEAF
Former MB: 99 E300, 86 190E 2.3, 87 300E, 80 240D, 82 204D Euro
Chain Elongation References

I'm not sure why the Mass Air flow sensor would detect a drop in pressue, should just pull more from the air box.

But we should be able to allow the EGR to just draw regular air, through a small filter. It would be simple enough to block off the supply pipe coming out of the the manifold.

This would be much less work to fabricate then R&R of the manifold and other parts.

I'm sure you have seen the Epsilon part on the TDI fourm. I had a 02 TDI GLS. We TDI owners have all seen the manifold photos.