Jump to content
Email-only Log-Ins Coming in December ×

IGNORED

60 Amp Alternator upgrade....now dead battery


Weasel73240Z

Recommended Posts

Okay....I think I found it! I found one very warm relay on the passenger side. I disconnected it and it was getting 12 volts with the key off. The number on the wiring harness was 24034-N3300. Since I don;t use the electric fuel pump, I disconnected it. I'm now charging the battery and hope I found my problem. Thanks again to everyone for the wisdom.

Link to comment
Share on other sites


So just to close this out, the fuel pump relay was definitely the problem. I charged the battery, drove around a bunch yesterday, parked it over night, and no battery drain at all. Obviously this is a much more difficult problem if you are still using the electric fuel pump, but thanks again for pointing me in the right direction guys!

Link to comment
Share on other sites

  • 3 months later...
To elaborate on the solution from Steve, you could use a standard automotive relay to interrupt the fuel pump circuit. After opening up the yellow wire, one end would to pin 30 on the relay, and the other end would go to pin 87. You would need to use a switched source, such as the circuit for the radio and put the ends on pins 85 & 86. The circuit would be completed when the ignition is in the run position.

Why add another relay to control it with the IGN, and leave the fuel pump relay controlled by the battery (which is what it's doing), and not just drive the fuel pump relay with IGN?

Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Who's Online   2 Members, 0 Anonymous, 391 Guests (See full list)

×
×
  • Create New...

Important Information

By using this site, you agree to our Privacy Policy and Guidelines. We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.