smelllikefumes Posted September 23, 2017 Share Posted September 23, 2017 I was wondering if someone could tell me how to test my fuel pump relay with a multimeter? I was driving last night and my car started sputtering and running really lean and eventually just died. It would start and idle choppy until i pressed on the gas killing it. This morning when I went to go call a tow I noticed that it now only starts and immediately dies afterwards even with a jump. Quote Link to comment Share on other sites More sharing options...
NewZed Posted September 23, 2017 Share Posted September 23, 2017 Is it a 1982 Ford F150? Quote Link to comment Share on other sites More sharing options...
smelllikefumes Posted September 23, 2017 Author Share Posted September 23, 2017 (edited) Sorry I didn't follow this. I was looking in the FSM, but was having difficulty finding the testing procedure . Edited September 23, 2017 by smelllikefumes Quote Link to comment Share on other sites More sharing options...
NewZed Posted September 24, 2017 Share Posted September 24, 2017 (edited) You haven't said what year car you're working with. The relays changed over the years. Edited September 24, 2017 by NewZed Quote Link to comment Share on other sites More sharing options...
smelllikefumes Posted September 24, 2017 Author Share Posted September 24, 2017 Oh! Sorry skipped my mind. 77 280z, 83zx turbo motor swap. Quote Link to comment Share on other sites More sharing options...
NewZed Posted September 24, 2017 Share Posted September 24, 2017 Which relay did you use, 77 or 83? They're different. The test procedure for the relays is shown, with pictures, in the Engine Fuel chapter, or the EFEC chapter. Probably easiest to put a meter on the fuel pump leads and see if there's power when the key is turned to Start. You'll probably see power and can move on to some other possible source. Listen for pump noise. Disconnect the starter solenoid so it will be quiet. Quote Link to comment Share on other sites More sharing options...
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