 1973 914 1.7L Relay Board Schematic, No Power from the Relay Board to the Fuel Pump |
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| Roadsterman60 |
 May 2 2013, 01:06 PM
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Newbie  Group: Members Posts: 11 Joined: 17-December 12 From: Tehachapi CA 93561 Member No.: 15,261 Region Association: Central California  |
Help! Help! Has anybody out there got a clear schematic of a 1973 1.7L relay board that you can share (the one in the Chilton shop manual is washed out and blurry)?
I need one to try and figure out why I am not getting power out of the relay board to the fuel pump. I have 12 volts to the power supply relay (new) and pins # 30 and # 85 on the fuel pump relay (new). I also have continuity from pin # 87 on the fuel pump relay to the fuel pump, so the problem seems to be something that's not happening in the pin # 86 circuit of the fuel pump relay, and, due to the terrible schematic I have, I can't locate the problem. Any help/suggestions would be greatly appreciated. |
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| Bob L. |
May 2 2013, 01:33 PM
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Senior Member Group: Members Posts: 847 Joined: 7-August 11 From: Austin TX Member No.: 13,411 Region Association: Southwest Region |
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| Dave_Darling |
May 2 2013, 03:33 PM
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914 Idiot Group: Members Posts: 14,986 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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Sounds like the ECU isn't grounding pin 86 of the fuel pump relay. Double check that the ECU is getting power and that it is plugged into the four-pin connector on the relay board correctly.
--DD |
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