In my case it was the pump.
I worked my way to the back of the garage and installed a new battery.
Hit the on switch and I heard the pump struggle before it quit.
After a winter lay-up with five gallons of premium that cost $4 a gallon in the fall and a pint
of Stabil, I siphoned five gallons of foul smelling paint thinner into a container.
The fuel pump connector had 12 volts and no error codes flashed.
After removing the main tank and siphoning the lower fuel tank, I removed the pump module.
Applying 12 volts to the pump .... nothing.
I soaked the pump in a cup of PB Blaster for an hour or so.
I used a toothpick to get to the impeller through the inlet.
I was able to rotate the impeller back and forth one blade at a time.
Another hour in the PB and I applied 12 volts to the pump ( out of the cup )
It spun up just fine and after several more brief applications of 12 volts, it seems to
start and run reliably. Back into the PB Blaster for the night and I will reassemble the pump tomorrow.
This isn't the only issue.... There is a low fuel sensor on the pump assembly that I am sure has been contaminated.
I'm *assuming* it goes to the EMC and turns off the spark or the injectors when the gasoline in the lower tank goes below this sensor...... I don't think it turns off the pump ..... but the service manual isn't clear on this.
I worked my way to the back of the garage and installed a new battery.
Hit the on switch and I heard the pump struggle before it quit.
After a winter lay-up with five gallons of premium that cost $4 a gallon in the fall and a pint
of Stabil, I siphoned five gallons of foul smelling paint thinner into a container.
The fuel pump connector had 12 volts and no error codes flashed.
After removing the main tank and siphoning the lower fuel tank, I removed the pump module.
Applying 12 volts to the pump .... nothing.
I soaked the pump in a cup of PB Blaster for an hour or so.
I used a toothpick to get to the impeller through the inlet.
I was able to rotate the impeller back and forth one blade at a time.
Another hour in the PB and I applied 12 volts to the pump ( out of the cup )
It spun up just fine and after several more brief applications of 12 volts, it seems to
start and run reliably. Back into the PB Blaster for the night and I will reassemble the pump tomorrow.
This isn't the only issue.... There is a low fuel sensor on the pump assembly that I am sure has been contaminated.
I'm *assuming* it goes to the EMC and turns off the spark or the injectors when the gasoline in the lower tank goes below this sensor...... I don't think it turns off the pump ..... but the service manual isn't clear on this.