I had to change the turbo on my 2002 sti type uk.Turbo rebuilt by Universal Turbos with a bit of a tweak.No mil light,no codes,rev limiter set to 7.5k and will no rev higher than 4K.Disconnect maf and she revs all you want.Basically a standard EJ207,RCM exhaust manifold,billet innards in an fv37 turbo.Any help would be welcome!

 

Not sure if it applies to newages but is your speedo working ?

 

Speedo works.Everything is great with the car as long as the maf sensor is disconnected.Have checked the sensor and is working fine.Checked wiring and all is ok.No codes present and no mil light on dash.

 

Soubds like its limp mode for some reason

 

What 'tweak' did you have done to the turbo?

 

Had the original turbo rebuilt but the casings were machined out to fit billet impellers.