The circuit opening relay has 2 sets of windings for the 1 contact , One winding is powered when the key is in the start position so the pump operates while cranking , once the motor starts and the key is returned to the ign position that winding is no longer powered and the ECU operates the other winding keeping the pump operating , This relay is used for safety , If the car is in a smash and the fuel lines are cut or damaged , the ECU will turn off the pump as soon as the motor cuts out .
These relays can be picked up at nearly any wrecker from any efi Toyota .
Thu, 25 September 2003 12:58
