I just upgraded everything to the stage 4 TMI from Turbo XS and everything went in fine! I had a Greddy Profec-B boost controller in there originally and at first we went with that instead of the turbo xs controller and WE GOT BOOST but we also got misfiring due to what we think is the UTEC making fuel do it's own thing and the Greddy trying to mess with the fuel too! We then hooked up the turbo xs controller and get a constint 10 lbs (if that) no matter what we do, then we went without a controller and still get 10 lbs. The controller from Turbo xs is on correctly but as I said there is no boost so I need to know what little peice of crap is keeping me from my 12 second car, is it something that could be caped off or cut when the Greddy was hooked up and is still effecting the other controller because It did work until we un-hooked the Greddy (with the exception of what we think is too much fuel). Or is there more controlling the boost then the connections between Waste guage, Silniod, turbo, controller, and the attachment to the airfilter that we are not seeing or do not know about, that also controls boost. PLEASE ANY IDEA"S and ALL IDEA"S WOULD HELP A LOT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Josh

 

Hi sounds like you put alot of money into your car.

The first thing you need to do is disconnect the signal line to the waste gate actuator and go for a ride and get on the throttle and see if you can get more then 10psi of boost with NO control....be careful, this should cause the boost to shoot up pretty high, but this will elimnate control issues...the turbo might not be able to produce more then 10psi....this is something you need to verify FIRST.

Nick

PS once you confirm that your turbo can produce lots a boost, report back.

 

Good news the turbo xs controller was bad and didn't come with the brass restrictor SO... Three extra restrictors and new boost controller later, all I got to do is mess with the timing and fuel map! Anyone know what setting the two swithes under the UTEC are suppose to be at when at a high elevation? I am getting some hunching and either turbo or fuel cut off when the pedal is at the floor?

Other then that things are back to good so thanks for all your help guys and hopefully you can help me figure out the fuel crap next.

Josh