ellets Posted June 6, 2010 Share Posted June 6, 2010 91 lego. I have no power to fuel pump. searched here and manual but can't spot the sorce. Anyone? Quote Link to comment Share on other sites More sharing options...
Legacy777 Posted June 6, 2010 Share Posted June 6, 2010 I would start by checking the fuel pump relay. It's up under the dash on the driver's side (a real pain to get to). You can connect the green diagnostic connectors and it will cause the relays, including the fuel pump to cycle on and off. See if you can determine if the relay is good or not and go from there. This diagram shows the relay location http://surrealmirage.com/subaru/files/swap/elect_unit_loc/6-3_electrical_unit_location03.jpg Here's a picture of the connectors http://main.experiencetherave.com/subaru/images/ecuhide.jpg Quote Link to comment Share on other sites More sharing options...
evanbixby Posted June 7, 2010 Share Posted June 7, 2010 I have power to fuel pump and still no go.. Let me know if you have any ideas.?? Quote Link to comment Share on other sites More sharing options...
Gloyale Posted June 7, 2010 Share Posted June 7, 2010 I have power to fuel pump and still no go.. Let me know if you have any ideas.?? Have you tested the ground side of the pump circuit? disconnect the harness at the pump (top of fuel tank) and test continuity to ground on the ground wire of the pump harness. If you have power and ground at the pump connector, but the pump doesn't run, you have a bad pump or a bad connection to the pump. Quote Link to comment Share on other sites More sharing options...
Hendrik Posted June 8, 2010 Share Posted June 8, 2010 Have you tested the ground side of the pump circuit? disconnect the harness at the pump (top of fuel tank) and test continuity to ground on the ground wire of the pump harness. If you have power and ground at the pump connector, but the pump doesn't run, you have a bad pump or a bad connection to the pump. Two weeks agoo I had the same problem , mecanic told bad pump. But by taking it out of the tank it was a bad connection between the pump itself and connecting connector. Takes 30 minutes to take it out and clean. I tested the pump with a bucket filled with water and a tire pression meter , left it for an hour on 12 volt and kept about 45 psi , that way. Build in , no problem anymore. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.