texasjack Posted August 2, 2012 Share Posted August 2, 2012 Would someone please tell me where the fuel pump relay and fuse is located on my 83 GL? Thank you Jack Quote Link to comment Share on other sites More sharing options...
mikaleda Posted August 2, 2012 Share Posted August 2, 2012 drivers side kick panel behind the fuse box above the hood latch. Quote Link to comment Share on other sites More sharing options...
texasjack Posted August 2, 2012 Author Share Posted August 2, 2012 Thank you for the info!!! Jack Quote Link to comment Share on other sites More sharing options...
texasjack Posted August 2, 2012 Author Share Posted August 2, 2012 I just installed a new Hitachi coil with my new Hitachi Distriburoe. My question is: does the Subie wiring send a full 12 volts to the coil when the switch is turned to the start position? Thank you Jack Quote Link to comment Share on other sites More sharing options...
Gloyale Posted August 2, 2012 Share Posted August 2, 2012 My question is: does the Subie wiring send a full 12 volts to the coil when the switch is turned to the start position? Yes. 12v From IG. switched fuse, to the above mentioned relay, junctions in the connector there, and out to the coil. Quote Link to comment Share on other sites More sharing options...
mikaleda Posted August 2, 2012 Share Posted August 2, 2012 Thank you for the info!!! Jack no prob. and if you are having problems with your coil that could be why you are having problems with fuel pump relay. the relay has a safety feature so when you don't have spark you don't have fuel, just fyi Quote Link to comment Share on other sites More sharing options...
texasjack Posted August 4, 2012 Author Share Posted August 4, 2012 Thank you for your help. I found the relay and installed a jumper between the hot lead and the fuel pump lead. I had spark but still no power to the pump, now I do. Jack Quote Link to comment Share on other sites More sharing options...
mikaleda Posted August 4, 2012 Share Posted August 4, 2012 (edited) cool glad you found your problem. i had the same problem in my gl i haven't done this yet, but i saw a thread that said you can hook up a straight positive to your fuel pump and use your oil sending unit for the negative so the pump will only run when the engine is running. that is way cheaper than the fuel pump relay they want alot for those. right now i have a toggle switch on mine Edited August 4, 2012 by mikaleda Quote Link to comment Share on other sites More sharing options...
Mykeys Toy Posted August 5, 2012 Share Posted August 5, 2012 I don't suppose that the fp relay is black or sometimes blue bolted with the hood release bracket? Quote Link to comment Share on other sites More sharing options...
ferox Posted August 5, 2012 Share Posted August 5, 2012 I don't suppose that the fp relay is black or sometimes blue bolted with the hood release bracket? Yes it is. In earlier models they were sometimes green. Quote Link to comment Share on other sites More sharing options...
Mykeys Toy Posted August 6, 2012 Share Posted August 6, 2012 Sweet! thank you. Now jumping the wires sounds a whole lot easier than running wires back and forth for a relay. Who knows which wires need to be jumped? Quote Link to comment Share on other sites More sharing options...
ferox Posted August 6, 2012 Share Posted August 6, 2012 Here's an old thread of mine with some good information on the subject. http://www.ultimatesubaru.org/forum/showthread.php?t=99877&highlight=fpcu Quote Link to comment Share on other sites More sharing options...
Mykeys Toy Posted August 25, 2012 Share Posted August 25, 2012 Ah so now that I have time and show is over went back to trouble shooting.. I have power everywhere including fpcu and @ the pump but something isn't making the connection to send the ground back to the pump. So the question is will it hurt anything to pull the ground output wire from the fpcu and and replace with a good ground? Quote Link to comment Share on other sites More sharing options...
Mykeys Toy Posted August 26, 2012 Share Posted August 26, 2012 Throwing in one more tidbit here. For troubleshooting challenged. This might only apply to the blue FPCU. The Big black wire on the FPCU plug is hot only when the key is on not acc. So is the yellow wire though I think that may be the trigger. The two blue wires share a plug Are the supplied power to the pump and not sure what else. The small black wire is fuel pump ground. So to make it all work I added a ground wire put spade terminal on it and plugged it into the ground supplied to the pump and jumped the tellow wire to the two blue ones. Now maybe this is long winded but I did just wake up and thought I would share so maybe someone else doesn't have to do all the testing and double checking that I did. Good luck Mike Quote Link to comment Share on other sites More sharing options...
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