[vanvan2801]

thanks for your reply ram g. as you say the best solution is to disassemble the plenium in order to see more clearly what has been done. but I was wondering if there was a way to see this, without taking everything apart? but at first glance the secondary system is delete because, they deleted the electric vacuum pump, the secondary tank I think (see photo I took when changing the alternator and I circled a delete vacuum pipe)
anyway thank you for your answers, i appreciate it very much.!