egr vac mod

[Bri7man]

I broke the bottom nozzle off my egr vac mod somehow so I bought another one.

This one has 2 nozzles coming out of a side which throws me off because I don't recall anywhere there is room for an xtra hose...

One I broke on left, new one on right.

 

[Poodles]

NA vs Turbo...

 

[Bri7man]

Oh ok, mines a turbo.. Makes sense cause I've never worked on a n/a.

 

[Another MkIII]

Yeah, the NA has a slightly different vacuum system. The Turbo's is actually a little simpler IMO.
-AM3

 

[Bri7man]

Alright, sounds good.
I just melted the extra nozzle shut with a soldering iron.. The xtra nozzle seems to be connected to the nozzle on the bottom side and not related to the sides so I think this should work.

If anyone else thinks differently lmk please.

 

[Another MkIII]

Alright, sounds good.
I just melted the extra nozzle shut with a soldering iron.. The xtra nozzle seems to be connected to the nozzle on the bottom side and not related to the sides so I think this should work.

If anyone else thinks differently lmk please.

I don't know the NA system that well, but according to my manual port R is the extra one, although it doesn't appear to matter. Again though, I'm not 100% sure on this as I understand the Turbo system a little better.
-AM3

 

[Bri7man]

I guess I'll hope for the best

 

[Bri7man]

Run a "T" fitting off the line going to the EGR valve and hook a vac gauge up. Get the motor warm, then rev it and see if vac rises with RPM. Should have no vac at idle, then steadily climb. Pull on the throttle linkage in the engine bay to raise revs while monitoring the gauge.

Here's the page in the Factory Service Manual

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/manual.aspx?S=EC&P=17

I just got dinged $73 for that stupid modulator, turns out it's airflow is somewhat resrictive just like my old one, so I don't even think anything was wrong with it, lol. Oh well, good to have a spare.

Alright so 2500rpm cold should be no vac, 2500rpm hot should be 70mmHg.

I'll check that once my engine's in thanks man!