I have an odd sound after the turbo timer shuts my car down. It is a rotary sound (dunk dunk dunk . dunk . dunk . dunk... etcc). I have traced the best I can the source of the sounds, and it appears to me to be my intank fuel pump. Would the inline fuel pump (mounted in the engine compartment) be doing something to cause the intank fuel pump to be doing something strange? Or is this something that is normal? At first I thought it was something just spinning down. However it stays in this mode for close to a minute sometimes after shutting down. I dont know the why of this happening, does anyone know what this is?

I have a Drag3 kit in case that helps -

TIA!

 

Mine sounds kind of like that too, I think. I think when turbo timer gets to 0 all the electronics shut down instantly (faster than with a key) so the motor turns over a few more times without spark right before it turns off. But with mine its the exhausst sound that goes Prrrrrrrr from the greddy.