240sx electrical problem
240sx electrical problem
well it all started like this i was doing the Sleepy eye mod the right way (like the Asian in youtube does it) and well i ran all the wires to the bottom of my deck so that i could have two switches there and in the procces one of the cables touched my deck and sparks came out it burned a 32v 25A brown fuse that is used for the (FL25A RET MTR) i disconnected the Lazy eye mod wires and my deck and i replaced the fuse but my car wont turn on. The thing is that my car keeps eating my battery i checked it and it will turn on if battery is upto 13v or more which was only obtained by getting power from another car Its a Nissan 240sx se 1993 automatic caryour help is greatly aprreciated
Re: 240sx electrical problem (f_days)
congratulations you now have a short somewhere that is killing your battery.
1st, make sure that the battery holds a charge overnight (charge it to 12v & disconnect it & see if it maintains its charge). If it doesn't, there's your problem.
Other thing is to now start tracing the wires you messed up and find out what else it destroyed - electrical problems are usually only solved by tracing wires w/ a voltimeter, especially when you short something.
You could have blown other fuses/relays as well.
1st, make sure that the battery holds a charge overnight (charge it to 12v & disconnect it & see if it maintains its charge). If it doesn't, there's your problem.
Other thing is to now start tracing the wires you messed up and find out what else it destroyed - electrical problems are usually only solved by tracing wires w/ a voltimeter, especially when you short something.
You could have blown other fuses/relays as well.
Re: 240sx electrical problem (onosqv)
Well my battery holds the charge at 12.40 and well im going to try and trace the wires but what exactly am i looking for in the voltimeter to say im not really experinced in this field and i checked all the fuses and fortunately it was only that one that was burned
Re: 240sx electrical problem (f_days)
now's a great time to learn! hee hee.
basically, if you search on google or read through the FSM, there will be some procedures for you to follow. I would check there for the most comprehensive coverage.
Overall, here is basically what you are doing:
- 1) okay, I fried a wire, let's see, the only 2 wires I know of that shorted are these 2...- on each wire, find out where the other end goes & whether it is suppose to be a negative or positive (you can find this info in the FSM).- begin tracing and see if a positive wire is getting grounded/shorted somewhere, if it's a ground, see if it's getting a positive reading (or even if it's suppose to have any reading when the car is off/battery is out etc) - you can do this w/ continuity testing vs a ground point (again, you can search on how to do this).
You may find something, you may not - that's the problems that happen when you short stuff that you don't know about - they don't call em electrical nightmares for nothing.
From what it sounds like (this is just a shot in the dark given the info you have given), you may have messed up a relay somewhere.
You say your car is eating your battery, & since your battery holds a charge, when the car is off, some wire that isn't suppose to be powered is getting power & draining the battery. You will have to go through each wire you suspect & reference vs. the FSM to see if it is suppose to be getting power or not when the car is on/off.
That is about as clear as I can explain it w/o being there, hope it helps.
It really pays off to have friends experienced in this stuff locally.
basically, if you search on google or read through the FSM, there will be some procedures for you to follow. I would check there for the most comprehensive coverage.
Overall, here is basically what you are doing:
- 1) okay, I fried a wire, let's see, the only 2 wires I know of that shorted are these 2...- on each wire, find out where the other end goes & whether it is suppose to be a negative or positive (you can find this info in the FSM).- begin tracing and see if a positive wire is getting grounded/shorted somewhere, if it's a ground, see if it's getting a positive reading (or even if it's suppose to have any reading when the car is off/battery is out etc) - you can do this w/ continuity testing vs a ground point (again, you can search on how to do this).
You may find something, you may not - that's the problems that happen when you short stuff that you don't know about - they don't call em electrical nightmares for nothing.
From what it sounds like (this is just a shot in the dark given the info you have given), you may have messed up a relay somewhere.
You say your car is eating your battery, & since your battery holds a charge, when the car is off, some wire that isn't suppose to be powered is getting power & draining the battery. You will have to go through each wire you suspect & reference vs. the FSM to see if it is suppose to be getting power or not when the car is on/off.
That is about as clear as I can explain it w/o being there, hope it helps.
It really pays off to have friends experienced in this stuff locally.
Re: 240sx electrical problem (onosqv)
yeah i kno i use to have friends exeperienced in that field unfortunately im in texas so im about to drive my car all the way to san diego and well i tried researching and found this video http://www.youtube.com/watch?v=pjXt7_gusgM and it turned out that it was the alt fuse that had a problem even though it wasn t burned so im guessing that theres something going on with my alterna im going to get it checked if nothing is wrong with it screw it ill take it to the shop cuz it still runs thanks for the info i appreciate ur help