S14 charging system FUBAR

ONLY for ADVANCED technical discussion about the 240sx!
User avatar
pepesilvia
Posts: 584
Joined: Tue Feb 21, 2012 8:15 pm
Car: 96 S14
Location: New Jersey :(

Post

sorry for the long story

so here's the story.... my car has always had a bit of a battery/charging system problem... about 3 months ago i found out that the pivot bolt on my alternator was completely hanging out and this was actually causing the belt to slip a little.... whatever: bought a new nut to screw on the back to hold it in. it fixed the problem; mostly. three months later (today) i decided to pull my car out and drive it to get some gas (havnt driven it in about a week. it isnt my DD at the moment).... so i new before hand i would have to jump my car so i called my girlfriend and she came to jump me. while my brother was jumping my car i went to the bathroom, when i came out i saw sparks flying before i yelled "the wires are on backwards!" and a whole buch of cuss words. for about 20seconds my brother had put the jumper cables on the wrong terminals..... great.... so now that i fixed it, the car was jumped properly and started right up. my girlfriend followed me to the gas station because i knew i'd have to jump it again there. but halfway there we were at a stop light and like a ricer wannabe i revved my engine pretty hard (newly turbo'd KA-t btw) and the RPMS went up till the turbo spooled, i let off the gas to hear the BOV and a pop from my exhaust (nothing unusal) but the RPMS went down all the way to zero and the car stalled.... i had to jump my car in the middle of the road lmfao. after almost getting pullled over i made it to the gas station. refueld. re-jumped, drove home, and as i was 10 feet from my parking spot i revved my engine a little and the car stalled again.

some things to consider: i have no idea when the last time the battery and the alternator was changed.... recently turboed my car (running FMU @ 5psi so no ecu backup)
what do you guys think? lemme know thanks


compactfean
Posts: 2602
Joined: Thu Dec 03, 2009 10:28 am
Car: 89 240sx s13 sr gt3071r 23psi
B14 sentra ser sr20de-t 7psi
daily
Location: reno nv

Post

Get your battery and alternator checked at an autozone or something. One of the 2 isn't right, and get that fixed before going any further.

User avatar
pepesilvia
Posts: 584
Joined: Tue Feb 21, 2012 8:15 pm
Car: 96 S14
Location: New Jersey :(

Post

kinda late update but i went to autozone and got it checked. turns out it was my battery.

User avatar
OutToWinPAHC
Posts: 8810
Joined: Thu May 31, 2007 12:19 pm
Car: 2015 Chevy Silverado
Nissan Skyline R33 GTS-t
Nissan Skyline R32 GTR
Nissan RB20 E46 RHD
2015 Harley Vrod Muscle
1990 Nissan Patrol
Location: PA
Contact:

Post

Wow I was gonna say witht he regulation circuit of the alternator but it was running after a jump so who knows.


Return to “240SX Technical Forum”