finespunflesh Posted November 4, 2013 Share Posted November 4, 2013 So after figuring out that my fuel pump resistor is not "resisting" I was looking online. I ordered from lexuspartsnow and they cancelled my order an hour later stating that they didn't have the part in stock. I then found it on lexus of south atlanta parts website but I called before ordering online, and the guy said that they don't make or supply that part anymore and that I'd have to find an aftermarket part through an oreillys, autozone, or advanced auto parts type store... Really not having any luck. Has anyone else had this issue and what did they use to replace their fuel pump resistor? I have a 1990 LS400... Quote Link to comment Share on other sites More sharing options...
landar Posted November 5, 2013 Share Posted November 5, 2013 If you cannot find one at the dealer or aftermarket, you may have to spin the dice on a used ebay resistor. http://www.ebay.com/itm/Fuel-Injection-Relay-Module-90-94-Lexus-LS400-23080-50010-OEM-10418-/261270638709?pt=Motors_Car_Truck_Parts_Accessories&hash=item3cd4f19075 The resistor is used to reduce the voltage to the pump when high pressure is not needed. The relay switches it in and out. http://www.google.com/imgres?imgurl=http://images.ttyr2.com/albums/Lexus%2520LS400/ls400-efi-electrical-schematic.jpg&imgrefurl=http://www.clublexus.com/forums/ls400/373766-90-ls400-fuel-pump-system-problem.html&h=482&w=768&sz=105&tbnid=xLQ7PW3MGZCK1M:&tbnh=90&tbnw=143&prev=/search%3Fq%3D1990%2Bls400%2Bfuel%2Bpump%2Bresistor%26tbm%3Disch%26tbo%3Du&zoom=1&q=1990+ls400+fuel+pump+resistor&usg=__FYzDxLhLq_D9iyf625-1ukIkaUQ=&docid=BfM90DCV9lz_6M&sa=X&ei=HX55UtmFHPHeyQGf44HYDw&ved=0CG4Q9QEwBg It is a nominal 0.7 ohms. So, if you can find a standard 0.7 ohm resistor at say 10W, you could wire it in yourself. That is probably what I would do if I could not find a new one. http://www.digikey.com/product-search/en/resistors/chassis-mount-resistors/66696 Quote Link to comment Share on other sites More sharing options...
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