Originally Posted by Dragsteer
ok. when I get contact by turning key, my pump make bzzzzz, is that mean pump relay is ok?
Yup. The buzzing is the pump priming the system..which is good. Which means the relay is good also
By the way..if you switch the ignition on & off quickly in succession, the pump will not prime continuously..there has to be a small time gap for it to re-prime. This is normal and is not a fault.