i have a 1994 nissan sentra 2 door, 1.6 liter, 5-speed. little over a year ago, the car was jump started with the battery terminals backwards.. since then, i've put my 98 jeep grand cherokee's battery in my sentra may 3 times, just to see if it would crank, and it did every time.. the third time i used my jeep's batter was a month and a half ago. finally got the money to work on my sentra, bought a battery and put it in it, and it the fuel pump wouldn't work.. pump had 200k miles on it, so i replaced it, still didn't work.. trial and error led me to the fuses... everytime i put in a new fuse, it blows the instant i turn the key to see if the fuel pump will work.. i'm positive i wired the wiring harness correctly to the fuel pump (black to black, black/red stripe to red). i disconnected the wiring harness that goes into the fuel tank to the fuel pump, and turned the key, and the fuse didn't blow, put back the wiring harness and it blew (went through 5 fuses)... anyone know what might be the problem? i really want this car working again, i really enjoy it's gas milage, thanks for your time
Answers & Comments
Verified answer
some where you have a short in your wiring. i had the same thing happen to me, come to find that i had a bare wire under the dash. after making the repair i had no problems sense.
maybe the fuel pump is designed to be ran from a bigger fuse, I dont know if its safe but if I were in your shoes, I would try putting in a 40 and see if that works, I dont think the battery jumped backwards would cause that problem. Could also be the harness, if you can cut and hot wire the pump then try that but leave enough slack to put it back together if you need to. Good Luck.