Done few more tests.
Here is the picture of HSV running 9Hz. He is one happy valve clicking his way thru?
This picture is a PWM pump controller test. To run WI continuously (over 3 minutes) you need a fair size heat sink. There is a lot of heat generating by Mosfet trying to handle 12VDC @ 10 Amp. We are looking how to unload Mosfet to run it cooler now.
Next step is in car text of knock sensor to see if we can pinpoint knocking?.