Weird electrical problem [Archive] - SR20 Forum

: Weird electrical problem


domiguy
03-26-2002, 08:05 PM
This is a pretty long post cause I went into some detail, enjoy:

Today I turned my car on around 6:30p and it turned on fine, no problems at all. I went to a body shop about 2 miles away and stopped there for a bit, I turned my car off and my lights. When I went back to my car around 6:45p to turn it on, I wouldn't, it was like my battery had died completely (but it was fine not long ago). Well they gave me a boost and I was fine there standing... I stupidly blasted my music and my interior lights flickered a little, but then I turned it off. Ok, so I'm ready to go and I turn on the lights, and bam, my car turns off, and again it's like the battery is dead. So I'm like shit cause the shop just closed and they can't help me anymore.. but there was a little downhill there so I waited till there was no traffic put my flashers on and I pushed my car and popped the cluth in 2nd gear and it turned on (7:15p)... I then made my way back towards my house but with only the flashers on, I didn't want to risk it by turning the lights on. I made it fine to an Autozone not far from my house and I go in with my car on to ask a few questions. Then I come out, I disconnect the battery with the car running and the car still runs fine, it doesn't show any falter or anything because of disconnecting the battery. Then I turn the lights on and still it's fine. Ok, so I take my battery inside to get it tested and it's fine. They can't take the machine outside to test my alternator because it's raining out (by the way it's about 7:30p) so they told me to come back tomorrow morning so they can test it out. Then I put the batter back in, the car starts fine, I turn the lights on and it's still good. I get home at about 7:50p so I decide to test my electrical system. I keep the lights on, I put the heater full blast with the ac fans on and I also blast my system (I have 2 subs with a nice amp). My car is fine, the idle drops a bit with the bass notes but that's always happened before. I turn off my car and turn it back on and it's still fine now. Does anybody have have any idea what's going on? Thanks in advance for any help.

Jose....

Rocketman
03-26-2002, 09:15 PM
FYI....
Bad idea to pull the battery cable with the car running. You could potentially send a voltage spike down teh wires to the computer and fry it. (quite literally)

And back on topic i would suggest taking a rather systematic approach to it all. Have the electrical components tested. (alternator, starter, battery.)

Also be sure to closely examine all the connections for the cables...
Battery neg. to chassis to engine
positive to starter.

Sounds a little like the starter may be going out though. you mentioned that the car would not "turn on" meaning it would not crank or there was no electrical power at all.

If the car just would not crank but you still have electrical power (to lights radio etc.) it may be quite likely that you have a bad starter.

Hope this all helps.
Rick

domiguy
03-27-2002, 02:19 AM
Thanks, what I meant by it wouldn't turn on was there was NO power at all so nothing would happen no cranking nada. But thanks for the info, I didn't know that thing about spiking the computer :eek: ... man I hope it's not a big problem I have

Jose...

Rocketman
03-27-2002, 07:52 AM
should be okay since you have had the car running since then but its not something i would recommend doing in near future.....

Check out them cables and ends and see what ya come up with.
Rick

RUTH'LESS 200sx
03-27-2002, 01:58 PM
I have a stranger electrical problem than you. I had a motor swap a few months ago and it came back with the problem. My dash lights( battery,oil,seatbelt) stay on when the key is out the ignition which allows me to let down the windows even though the car is off anybody have an idea on that. I pull the battery electronic fuse to cut the power on the dash.

sleeping 91ser
03-27-2002, 04:13 PM
agree with rocketman, i bet its your alternator...., thats kinda wierd though how afterward its fine :confused:
sean