I have been having probs with my battery dieing on me lately. Nothing has changed in the electrical system to cause this to happen so im ruling shorts out of the question at this point.

I checked the battery. Matter of fact one of them is new . But both were tested to be good batteries, However something is draining them down to hell . They get soo drained i cant even jump them. I need to recharge them fully. Also i checked my alternator. I took one of the cables off while the car was running and it stayed running. The belt is fine also . Might be a tad loose, but not super loose.

Is there anything else anyone can suggest to test to figure out the problem . It seems as im shutting the car off and turning it back on is when im figuring out it goes dead when trying to fire it back up.

 

any way to monitor the voltage WHILE DRIVING to see if its holding the charge while driving? Not sure if Hondata can do that or not...(I know AEM can )

**also might wanna take out the 20" subs in the trunk y0

 

I have been monitoring the voltage while driving via my turbo timer. Has a voltmeter function. Just started using this since this problem started. The voltage seems to be fine when driving . The problem seems to be more when cranking the car. I dunno if the starter would be cuasing the prob? But if so why would my battery be drained from it? Weird **** man.

No 20" subs in the R yo . Only electronics in it are the ones needed to make it run and for the turblo stuff.

 

could an alarm or any other electronic device be draining it? How long does it have to sit before it wont start?

 

shhhhhhhhhh . No Alarm on it . lol.
See thats the thing . I havent changed anything electrical on it so i dont know what could possibly be draining it now that never was before. Nothing that i know of that i have wired up is ever on with the car off. Everything wired has switched 12v signals. Nothing really constant.

 

Voltage regulator gone bad?

 

Hmmmm that might be something to check . Wouldnt that give probs though with regulating voltage while running and under some load. The running voltage is fine it seems. The problem seems to be after i shut it off and try to turn it back on. This last time the problem happened it seemed like it held a charge for a week or so and quite a few shut downs and restarts .I was tuning and was loading my changes and need to be made with the car off. So i started to notice as i was restarting more and more times it felt like the cranking power was getting weaker and weaker.

 

bump any other suggestions.

 

bump./ no one here knows how to troubleshoot charging systems?

 

Do you have any left over wires from the system? Could be a parasitic draw. I believe you can check the alternator while the car is running with a volt meter do determine if that is the case or not.

 

i have plugs open that arent going to anything , like knock sensor and some other **** thata zip tied up behind the motor, but i dont see why that would draw if its not connected to anything and never gave me probs before . How do you check for parasidic draw though .

 

https://honda-tech.com/zerothread?id=457238

 

thanks , ill check that over.

also if this makes any sense. when i try to start the car it doesnt have enuff to crnak over and totally dead, but all my turbo timer and boost controller and radio and all that **** will still light up and turn on , just won have enuff to crnak over.

 

It's a low battery if that happens.

 

Probably excessive quiescent current consumption. Hook meter up in a series with your multimeter. One clamp on ground one clamp on negative terminal on your battery to complete circuit, measure amperage. Hook up the meter to ground first and slide the other lead on the - terminal while you're taking of the battery cable to ensure a constant connection. If the amperage is to high start pulling fuses until it drops. hth.

 

i dont think there is anything on my car that draws any thing even close to an after market stereo.

Just gauges,wideband, boost controller, turbo timer , cd layer and thats about it

 

Well i checked the parasitic drag and got .002A .so i dunno now , i got my batter recharged and i guess i will drive over to Advanced Auto this weekend and see if they can test load current and diode test on my alternator. See if that shows anything .As far as my testing goes though the alternator seems to b fine. the batteries were tested to be fine , no shorts or anything i can find.

I tightened the belt up last night too , it was a little loose. Maybe that was causing it to slip?

 

I had a similar problem for a couple of months. It ended up being the transmission ground strap on the RH frame rail. It might be worth a look.

 

im pretty sure they are all on there tight, but i will check again.

 

Are you sure it's not just the starter?

When you crank it and it doesn't start did you check to see the voltage the battery was putting out?


Electricity is EVIL!

 

I would check the starter, but I would also look at the fuses for the charging system. Also if you have a Helms Manual I would check in the Electrical Troubbleshooting section, that always helps me.

 

ihave a manual , but it dont help worth crap, lol. i dunno could be the starter. i think when the battery was fully dead yesterdy towhere it wouldnt start it was at 11.5 volts.or so

 

I think 11.5 should be plenty to start it.

I thought you had other problems other then it not starting like flickering interior lights and stuff.

Is the only problem it not starting all the time? if that's the case then I would deff look at the starter.

 

yea it was doing that the one day when we were going to Etown . it hasnt done that since though.

 

Do you have an extra battery sitting around? Try another battery for a few days...

I have had batteries die on me similar to what you are describing...