Type 1 fuel injection question

Can anyone tell me if my 79 Super Beetle fuel pump (Fuel Injected) should run even when the key is not in the ignition? If not, as I suspect, what could cause it to run? I have a much longer story (below) which you are welcome to read if you think it will help.

TIA,

1SNUGBUG

_________________________

I bought this car a few months ago to replace one we had for many years. I had to replace the fuel pump once I found that the old one was underpumping. Recently when she drove to work and parked, everything was working fine. But when she returned to go home, it would crank but not start. I did a little testing and found there was no fuel pressure. So, we got it towed home. I disconnected the fuel pump after the pump but before the chassis line (there is a high pressure hose connecting the two). I tried to see how well the pump pumped but when I turned the car on at the ignition I realized the battery was dead. It would not take a charge so I bought a new one. Once in the car I connected the battery but did not put the key in the ignition. To my surprise a couple of gallons of fuel was on the garage floor in the few seconds it took me to look under the front of the car. So, I delicately removed the terminals from the posts of the battery and cleaned up the mess. I can hook it all back up but I am worried that the pump should not be running when there is no key in the ignition. Neither of the books I have tell me what I want to know so I am looking to the wisdom of the group and past experiences to help me out here.

Reply to
<jbl
Loading thread data ...

Pump should only run when the starter is actually cranking, not even when the key is just turned to ON.

After the engine fires up, another circuit will keep the pump running.

Look on my web site for FI info. There is a full description of the circuit and also a simplified diagram.

Speedy Jim

formatting link

Reply to
Speedy Jim

I suspect that someone has fiddled with the starter and put the wires on the wrong terminals on the solenoid.

Injected) should

suspect, what

which you are

for many years. I

was

everything was

crank but not

pressure. So, we

pump but before

the two). I

the car on at the

take a charge so I

but did not put

gallons of fuel was on

under the front of

posts of the

but I am

no key in the

to know so I am

help me out

Reply to
Busahaulic

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.