Hi,
It started with the small rubber hose popping from underneat the solenoid valve on the intake. Replugged it for few more klics, then a loud whitling noise accompanied with major power loss...
So far, with forums research it could be vsv and or cataliser, I have yet to check codes
Any idea to pin point what's wrong

Thanks

S

 

i to am having a vaccum problem, i followed the diagram, and reconnected all of the right ones, finally... but im still having bucking issues, did paper clip trick, says code 71 edr valve, but egr works, goes to o'reilly, checked and they said it was a vss circuit my speed sensor and a starter circuit, idk every hose brings up a new problem >:/ i gave up, driving her until she pops

 

It would be awesome to figure out what you two are working on

 

3VZE engine
Guess they have vsv hose routed incorrectly, everyone pulles those three in center off under the plenum not knowing how to correctly route them. There are two vsv's on fender, bur thereare these other three under all those hoses lower on the fender.

First http://personal.utulsa.edu/~nathan-b...74layoutan.pdf
Will help visualy.
The VSV are Blue is PAIR, RED (brown) is for Fuel Pressure up and Green is EGR.

The top of the VSV is from the vacuum source and the secondary goes to the item its running.
EGR vacuum comes from 2 vacuum lines to the modulator then from there to the top of the green VSV, From the bottom of the VSV (bleed off filter) goes to the main EGR valve.
EGR only turns on when a cruise or light throttle is happening.

PAIR, From manifold to a one way valve then to of the Blue VSV top, Out to the PAIR valve.
Only turns on during deceleration.
Fuel pressure up, From Manifold to the Red (brown) to the regulator.
Turns on during acceleration dropping vacuum to zero increasing fuel pressure.
Fuel pressure up can be bypassed if the VSV is bad.

Foul smell
erradic idle

Pull the hose off EGR top and if she smooths out,you have a vsv hose(s) routed incorrectly.

here is a good pic thread:
https://www.yotatech.com/forums/f116...e-help-209069/

Bills86e