Manual Fuel pump switch, and tips |
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Manual Fuel pump switch, and tips |
ONTHEGRIND |
Nov 22 2008, 01:20 PM
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#1
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Member Group: Members Posts: 286 Joined: 10-November 08 From: California Member No.: 9,738 Region Association: None |
so I am installing a new bosch fuel pump for my factory fuel injection system.. Where my factory fuel pump used to one in the stock location, one of the mounting tabs is gone from a little bit of rust, so I am moving it to the firewall. And mounting it with sheet metal screws.. Any body have a manual fuel pump switch wired up so if that relay crap decides not to work I can just flip it on with a switch.. where do you have it mounted and how do you have it wired up ?
Thanks |
ONTHEGRIND |
Nov 22 2008, 06:40 PM
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#2
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Member Group: Members Posts: 286 Joined: 10-November 08 From: California Member No.: 9,738 Region Association: None |
I put a wire from tb4 to a ground when I put it in the plug in the lower left nothing happens when I turn the ignition to the on pos. I hear a click from the relays.. I toched a wire to the top connectors on tb4 and got sparks
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Spoke |
Nov 22 2008, 10:40 PM
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#3
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Jerry Group: Members Posts: 6,989 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
I put a wire from tb4 to a ground when I put it in the plug in the lower left nothing happens when I turn the ignition to the on pos. I hear a click from the relays.. I toched a wire to the top connectors on tb4 and got sparks Please elaborate on your findings: When you say nothing happens you mean the pump did not run. Correct? You hear a click from both relays? The spark is good and bad. Good that you had power there; bad cause shorting that pin to ground could damage the FI relay as it provides 12V to this pin from the battery with no fuse. There is a fuse on the relay board that powers the fuel pump. Is this fuse ok? Do you have a voltmeter? If not, buy one, you'll need it to work on your 914. |
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