We had this rather nice customers Toyota GR Supra A90 in the Whifbitz workshop recently to diagnose and fix a boost issue. After a diagnostic test using our Toyota ISTA software we found the wastegate actuator was at fault. Luckily we had a used one here we could fit which fixed the issue and the B58 engine is now back to full power. This is the 2nd wastegate actuator we’ve had fail in the last few months on Supra so it could start to become a common problem with them.
If you’d like your Toyota Supra tuned or maintained please get in touch.
