Vacuum Diagrams for sr20det. Need help

[newdude1]

So Im searching around trying to figure out why I cant get my damn car to run right and came across a bunch of different ways to hook up the vacuum lines. Right now I have my bov line going straight to the throttle body, The waste gate line is teed to the boost gauge, then to the fpr, and to the intake manifold.

Now I read the the waste gate is suppose to go to the hot pipe and teed to the bov. then run everything else off the intake manifold. Is this correct?

Also reason Im trying to figure this out is because my car is having a weird vacuum problem. Cruising itll be at like 15 vac then randomly drop down to 10 or lower vac. And causes the car to buck really bad. But then other times the vacuum is ok. Think the way I have my vacuum lines would cause this??

[chicos240]

Ok, off the intake manifold...theres is a lot of vacuum sources.ONE should go to your FPRONE Should go to your BOVONE should go to your Wastegate Actuator Solenoid ControllerThe others go to anything else you may need...canister ...etcBoost, can come from either the pipe from your turbo to the IC...or right before the Intake.Your Boost Pressure Sensor needs BoostYour Wastegate Actuator Solenoid Controller needs Boost.If you only have one Boost Source, its ok to TEE the 2 above.

[newdude1]

What is your boost pressure sensor?

[J240sx]

Try it this way and then let me know if it works. Bov to the intake..fpr to intake. Bottom vacuum capped off. Waste gate is only teed if you are running a boost controller. Just have one from your waste gate to the inter cooler piping..For your boost gauge tee the one going from the fpr to the intake.