Not another crank but no start thread!
I may be looking at this wrong, but jumping 12.5v off the battery to fuel relay socket pin 3 forces fuel to come out of the reg. return. Key crank with the relay in = no fuel. From pin 5 I get 10.5v coming upstream from the battery. Downstream from the relay at the resistor I get 9.5v with a key crank.
It's a newish denso pump just outside of the warranty period. Are these pumps that picky on supplied voltage?
Is this likely a crusty circuit issue or a failing fuel pump?
Thanks all.
I may be looking at this wrong, but jumping 12.5v off the battery to fuel relay socket pin 3 forces fuel to come out of the reg. return. Key crank with the relay in = no fuel. From pin 5 I get 10.5v coming upstream from the battery. Downstream from the relay at the resistor I get 9.5v with a key crank.
It's a newish denso pump just outside of the warranty period. Are these pumps that picky on supplied voltage?
Is this likely a crusty circuit issue or a failing fuel pump?
Thanks all.