Toyota Corolla Water Pump (what capacity for electric version?)

[echo-francis]

Originally Posted by jere

The T-stat is mechanical and doesn't talk to the ECM. It is usually just mounted in a housing that is completely separate. You can just leave the housing and take the T-stat out.

It isn't good for the life of the EWP to be switched on and off, that is why the pulse width modulation controller should be used.

I never switch the waterpump off I only slow it down

[jere]

Originally Posted by echo-francis

I never switch the waterpump off I only slow it down

I understand what you meant (REALLY COOL ingenious, method that is the first I have heard of anyone doing anything like that ) Sorry for the confusion I should have used the quote button. That post was directed at jeff88, didn't want him to think that one would have to switch the pump on and off while driving.

To jeff88 with my E-water pump ( just the pump no controller yet) I ran a relay off of the fuel pump so that I don't ever forget to turn the pump on and blow up the motor. The Davis-Craig might need some ignition source or something so it wouldn't need the same relay system I have. Maybe echo-francis can chime in on that? I am curious at least

Echo Francis are you using the Davis-Craig controller with your diodes or just one or the other?

[echo-francis]

Originally Posted by jere

I understand what you meant (REALLY COOL ingenious, method that is the first I have heard of anyone doing anything like that ) Sorry for the confusion I should have used the quote button. That post was directed at jeff88, didn't want him to think that one would have to switch the pump on and off while driving.

To jeff88 with my E-water pump ( just the pump no controller yet) I ran a relay off of the fuel pump so that I don't ever forget to turn the pump on and blow up the motor. The Davis-Craig might need some ignition source or something so it wouldn't need the same relay system I have. Maybe echo-francis can chime in on that? I am curious at least

Echo Francis are you using the Davis-Craig controller with your diodes or just one or the other?

my ewp takes its power from a wire that have power when my key is at the ON position
so my ewp turn on when I put my key at ON

I am using the Davis-Craig controller and the diodes at the same time