Originally Posted by scrotenz

Hi All,

So ive been tracking some issues with my car.

So since i bought my car when i turn the ignition on i hear the fuel pump prime. While trying to sort other issues ive been testing sensors at the ECU end and found that the phase sensor and knock sensor were switched which explains a heap of performance issues ive been having so thats good.

However now my fuel pump doesnt prime until i crank the car. What is the correct behavior here? Also now the AMAL Valve doesnt get an earth from the ecu which it does if i switch the knock sensor and phase back to wrong. tested by earthing directly and it clicks as expected.

Since the fuel pump and Amal are on the same 12v then im assuming its related.

What do i need to start testing to sort this?