Posted August 18, 200222 yr comment_13348 HELP….. I was over hauling the fuel system of my 73 Z to clean out all the metal lines, replace all the rubber hoses and change all the gas filters. This Z has been sitting in a garage for the 12 years and the tank was dry. . I pulled the electric fuel pump out and changed the filter and I bench tested the unit. The pump seams to be working fine, it pumped a good amount at a good pressure. I re-installed it and was trying to get it to pump enough fuel from the tank to fill the fuel system. I tried this by turning the keys to ACC and even tried to crank the engine but the electric pump would not pump. I traced the power from the ignation to the the inline fuse (black and white to green wire) but no power on the green wire to the electric fuel pump. I still could not find any relays on the green wire, are there any and where are they located.The Haynes book I have is useless for trouble shooting this problem and I have no other sources of info. 1. Does anyone know if there are control relays some where else that I need to check? If so could you share the locations with me? 4. Any other advice for this? Link to comment https://www.classiczcars.com/forums/topic/2714-electric-fule-pump-not-pumping/ Share on other sites More sharing options...
August 18, 200222 yr comment_13353 If there is a relay it should be on the passengers side kick panel under the glove box. I don't have the microfiche CD or a manual that gives the number on it so can't be more specific. :disappoin Link to comment https://www.classiczcars.com/forums/topic/2714-electric-fule-pump-not-pumping/#findComment-13353 Share on other sites More sharing options...
August 19, 200222 yr comment_13359 before the electric pump kicks in - I think.My early 260Z has the electric pump disconnected, runs on the mech pump only, always has for the past 5 years of ownership.IIRC, the elec pumps were added to reduce fuel vapor maint issues with hot cars, and so only kicked in at a certain load, else the car was on the mech pump only. That may be why you can't see any ready evidence that it is even working.but again, have only had flawless experience with the mech pump only. Link to comment https://www.classiczcars.com/forums/topic/2714-electric-fule-pump-not-pumping/#findComment-13359 Share on other sites More sharing options...
August 19, 200222 yr comment_13367 Pretty sure your thinking of the by-pass solinoid.From memory, the pump always ticks over with fuel delivery being monitored by water temp and RPM. Link to comment https://www.classiczcars.com/forums/topic/2714-electric-fule-pump-not-pumping/#findComment-13367 Share on other sites More sharing options...
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