Need help again!!my car wont rev past 4000rpm
 

ok so my car won't rev past 4000rpms.it will rev to 4000rpms and then drops.
i replaced secondary injectors but still same result wont pass 4000rpm .
help ?
help

sounds like your secondary turbo isent kickin in, have you checked all the vacume lines?


Check the Manifold pressure sensor, that tends to cause it to not work.