hi guys this is a quick and easy one,,,and im sure some one can help.
basically my boost comes in nice and fast but if im driving quickly through the gearbox and i change from 2nd to 3rd,,,the boost builds up slowly (when i let off the gas and plant the throttle again,, boost speed is restored)
ive been studying the turbo system guide for weeks,, i think its either the one way check valve to the vacume chamber (maybe a leaky vacume chamber).. or lastly the charge control solenoid could be faulty or sticking,,,
can the turbo experts please give me a little info
basically what i think is happening is the charge control plate is opening due to a vacume leak within the system and leaking my primary boost down the 2nd turbo and out the charge releif.
any input will help thanks guys/

 

pleaseee...

 

Do the easy stuff first.
Get a mityvac and test all the one way check valves and make sure your
pressure and vacuum tanks are holding.
Here is a link to a site for turbo troubleshooting tips.
http://www.autosportracetech.com/RX-...leshooting.htm

Good luck......

 

Do the KOKO test and report the results.

www.fd3s.net

 

If boost is restored by letting off the throttle and then getting back on it, it's a vacuum tank leak almost certainly.