VWDiesel.net The IDI, TDI, and mTDI source.

Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: superman293 on June 20, 2006, 08:49:17 pm

Title: only getting pressure reading on gauge
Post by: superman293 on June 20, 2006, 08:49:17 pm
I just got done installing a pressure/vacume gauge in my 2000 TDI, I installed a fitting in the 3" soft pipe that is clamped to the intake. im only getting a pressure reading, no vacume, I know that the pressure does work on the gauge, do i need to "T" into a different place?
thanks
Title: only getting pressure reading on gauge
Post by: vwmike on June 20, 2006, 10:28:46 pm
VW diesels don't have throttle bodies and without a throttle body you're not going to see any vacuum.
Title: only getting pressure reading on gauge
Post by: superman293 on June 21, 2006, 01:54:53 pm
so there is no way to get a vacume reading?
thanks
Title: only getting pressure reading on gauge
Post by: vwmike on June 21, 2006, 02:18:16 pm
not on that engine.
Title: only getting pressure reading on gauge
Post by: hillfolk'r on June 21, 2006, 09:58:51 pm
get a boost guage that reads psi only,ya dont need a vacuum scale
Title: only getting pressure reading on gauge
Post by: therabbittree on July 04, 2006, 08:11:51 pm
yup diesels don't have vacuum ..like a gasser..i guess you could try to tee in to the vaccum pump ..ha ..but it would be a constant reading as its a pump ..not engine load supplying the vacuum
later
Deo
\x/ hillfolk!
Title: only getting pressure reading on gauge
Post by: hillfolk'r on July 04, 2006, 08:31:06 pm
ive got an inches of water vacuum guage from a big truck that you could put in the pipe from the filter to the turbo,itll tell ya when yer air filter is clogged,its a 2 inch guage,reads to 40 inches,i used to have one  in my rabbit truck,with a k+n style filter,i never saw it move :D
Title: only getting pressure reading on gauge
Post by: madmatt on July 15, 2006, 01:38:12 am
if you do see a vacuum you need to look at the intake to see where the restriction is.