Ive fixed the vaccum lines and replaced the plugs. No longer hitting fuel cut but it still doesnt have the power it should. I think its running of the wastegate only. How can i check if the oem boost solenoid is working properly?

 

Boost gauge

 

When in the rpm range does your boost start to build? Whats your max boost setting? Does it get there everytime? Same rpm range?

 

It builds around 2600the rpm. I dont have a gauge so i dont max boost pressure. Its on stock turbo, hard piping with k&n intake turbo back exhaust 720 injectors. It has random wires like there use to have a tuner or boost controller

 

You should definitely invest in a boost gauge, it's good to have so you can monitor the numbers, and know if something is wrong. If the numbers are off from normal, ie when boost builds, max boost pressure, vacumn readings give you alot of clues to what your car is doing, etc..

 

Ill order one but in the mean time any thing else i can do?

 

Do a boost leak test

 

Went out and got a boost gauge. Running max boost of 13 lbs.

 

It might be a good idea to even check your tune, if you are running 720cc injectors and there used to be a boost controller maybe you are either running to rich or lean if something from the original tune has changed.

 

I have get the data cord first to read it

 

Wat would cause the low boost and its not cause of a leak. Do i not have a vaccum line right or is it the tune?

 

If i run the wastegate strait to the solenoid alone the boost will skyrocket past 25 . But if i t the wastegate in with a line off the manifold like its supposed to be it only hits 13. I

 

Go straight from the j pipe to the waste gate. And tell us what boost you hit.

 

Nothing is supposed to be T'ed if your on stock boost solenoid it goes from turbo j pipe, to boost controller then on the other hole on the boost controller to the waste gate actuator.

 

The diagram i went off of showed a line coming off the j pipe teeing with the wastegate to the controller then the top port goes to the intake off the turbo behind the maf