EGR Question

[gumby6371]

Can anyone tell me whether the EGR valve on the 1.9td engine is controlled solely by the vacuum solenoid?

The reason I ask is that I was thinking if I disconnect and blank the rubber pipe running from the cylinder to the solenoid that would in theory prevent the solenoid from operating and so stop the EGR valve from opening, at least as far as I understand it.
This would be very simple to do and very simple to put back should there be any problems.

Thoughts anyone?

[Doggy]

Does look like disconnecting / plugging the vacuum pipe should do it.

[gumby6371]

Thanks for the response Doggy, I'll have a look in the MF for suitable blanks, it looks like a very cheap and very easy fix for EGR problems on the 1.9 XUD as long as the EGR isn't stuck open.

The next question is will I need to give her a dose of EGR cleaner or will it clean itself once the valve is permanently shut?

[lozz]

Iwouid clean it and then just plug the pipe
the Egr cleaner does a good job, as it dosent just clean the egr,
it cleans up the inlet valves etc, makes abig differnce imho,

[gumby6371]

Thanks Lozz, looks to me like changing the T (item 10) to an elbow and a squirt of cleaner should do it and all easily accesable should do it.

Something has to go wrong, it's far to straight forward!!!

[dummysock]

The engine will run with the EGR closed, i.e. blanked off. It will not operate with it continually open

[gumby6371]

Disconnecting the pipe should leave the EGR closed as when the vacuum solenoid operates there will be no pressure to operate the valve therefore it will remain shut. At least that's how it will work in my head.

[lozz]

Disconnecting the pipe should leave the EGR closed as when the vacuum solenoid operates there will be no pressure to operate the valve therefore it will remain shut. At least that's how it will work in my head.

dont forget to plug the end of the pipe

[rwb]

Disconnecting the pipe should leave the EGR closed as when the vacuum solenoid operates there will be no pressure to operate the valve therefore it will remain shut. At least that's how it will work in my head.

That's exactly how it works on my HDi.
You know the silly plastic plugs with the centres that pull out that, for example, hold the carpet in the boot?



Well a centre from one of those is exactly the right size to bung the vac tube.

[gumby6371]

I was thinking of going to the great expense of buying another T piece and blocking the end going to the EGR solenoid with something, that way I could put the pipe back in place to stop it flapping around. It would also look untouched should an over zealous MoT tester have a look if the regs get tighter.

[lozz]

I was thinking of going to the great expense of buying another T piece and blocking the end going to the EGR solenoid with something, that way I could put the pipe back in place to stop it flapping around. It would also look untouched should an over zealous MoT tester have a look if the regs get tighter.

clamp the pipe
pop into a fish tank place and grab a air pipe clamp,

some here in this link http://www.ebay.co.uk/itm/AIR-PUMP-FISH ... 231877b3c1