My 55 Sti was running without a BOV.

Just refit the OEM recir and the injector % is up from 65% to 70% at full pelt.

Any suggestions why?

Defi also reads 1.7 bar... but that was normal. Is 1.7 high?


Car runs so much better with BOV on than off..

Smoother at hi-revs and when lifting off the accelerator, no stutters...