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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


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Old 06-27-2009, 07:44 PM   #1
drkidd22
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if your wires are getting warm there is too much current being drawn. You might want to check and look for a short in the wiring before taking the pump out. Start from the back to the front. You can also apply 12v to the pump while it is in the tank, just unplug it from the main hardness and use a fuel pressure gauge in the front fuel line to see your fuel pressure, it should be about ~43 PSI if the pump is working properly or you might just find out that the pump doesn't turn on when you apply the 12V. I'll suggest you take your car battery to the trunk, unplug the pump wiring hardness and apply 12v dirrectly to the pump. Use an in-line fuse (10A I think is factory) on the + wire from the battery and see what happens. Use like a 12gauge wire. There are many ways to do it, its up to you. Just make sure if you do apply 12v that you apply it to the right wires. Taking the lid off is tricky, use WD40 on the screws. Use a ratchet and be gentle, I broke two trying to take mine out.

If the pump is stuck just replace it, it's not worth it to try to fix it.
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