T

td5ross

New Member
hi any sort me out with this mess brakes bit spongey after egr blank,i followed instructions to t....but have seen other diagrams suggestin removing electrical connector?? i blanked the manifold plate and gasket.....removed valve connected top hose,and removed blue vac pipe and blanked.....ive no heat exchanger,so early model 1999 xs...feels smoother to drive thats it but brakes are poor,checked pads allgood,discs ok...thought air so im goin to renew all fluid 1st easy cheap option 1st lol...:confused:
 
On another note.. I Blanked me egr and!! WTF is all the fuss about? There is absolutely Zero difference :confused:


All I can think is that there's a lot of wishful thinking going on with 300tdi owners.. :rolleyes:
 
well if u can read chap,ull now y,ive blanked the egr and brakes gone spongey so ive made a mistake and looking for some quideance,gees
 
td5ross said:
y wots it doo?
Click to expand...


The solenoid is electrically controlled and operates several systems and has implications for the vacuum-assisted brake system.

You can block off the individual solenoid outlet that serves the EGR valve, but the electrical connector must remain.
 
td5ross said:
ok so ill put back on,....so where is the correct plce to blank vac pipes?
Click to expand...


Yours is a '99TD5 right? From memory there is only one pipe on the early cars that goes to the EGR valve - I would block it off at the EGR end and fasten it out of the way.
 
ok,call me thick but how to wat end blocking it makes a diff? ive blocked it the blue pipe at the solenoid,what are the other pipes for exactly? and are you not to blank the t piece off main servo??? every one has diff ways,are they all the same?? some better some not? surely the t piece will work,ill try it and see,if i dont reply i failed and wownt have a disco anymore lol
 
td5ross said:
ok,call me thick but how to wat end blocking it makes a diff? ive blocked it the blue pipe at the solenoid,what are the other pipes for exactly? and are you not to blank the t piece off main servo??? every one has diff ways,are they all the same?? some better some not? surely the t piece will work,ill try it and see,if i dont reply i failed and wownt have a disco anymore lol
Click to expand...


As I tried to say before, the vacuum solenoid operates/is involved with a number of systems, one of which is the vacuum part of the braking system.

If the integrity of the vacuum is compromised then it can and by the sound of has, affected the braking system.

I don't understand why you don't just try as I suggested, and see if it has a positive effect on your brakes?
 
ill try it now thanks,there just seems so many diff ways to do it,whats the correct...im also not experiencing many changes
 
td5ross said:
ill try it now thanks,there just seems so many diff ways to do it,whats the correct...im also not experiencing many changes
Click to expand...




The important thing about the vacuum side of de-EGR'ing is that you maintain the vacuum, so whether you block off at one end of a single pipe or the other, doesn't matter; HOWEVER if you block of at the solenoid end make sure there is still a supply of vacuum on the left hand pipe of the T-piece.

The differences are not huge, but they are there. Most owners notice an increase in smoothness at tick-over and throughout the rev range; plus an improvement in torque at the lower end of the range manifesting in better long hill climbing and towing.

If yours has a cat'd exhaust downpipe, replacing with a straight version helps in terms of mpg and responsiveness. Then remap the ECU and you'll have a different car!
 
seems sluggish now,im going to soak egr and refit see what happens,,can the egr malfunction and make car perform better?? like bein stuck open closed???
 
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