car went into limp mode..

***m1k3*** · 01-12-2008, 12:42 PM

i removed my subs the day before yesterday, did everything right, disconnected the power wire then unplugged every thing and took em out. soon after i turned my car on and it took about 5 cranks because i had reset the ecu, no biggie.

yesterday morning it takes about 9 cranks and my bettery light and CEL come on... oh shit..

my car hesitates when driving and it wont rev past 3500 RPM.

during gym period i check out of school and take it to honda where they will handle it (hopefully)

i get a call back later in the day saying the alternator went bad and took the battery down with it (battery was low on power anyways)

all replaced under warranty

im just curious as to how this could of happend.. should i have drivin the car around mroe after taking out the amp? this is beyond me...

ziwang55 · 01-12-2008, 04:58 PM

thats interesting cuz that happened to me when one night i took my subs out and the car won;t start. i got it towed to the dealer. they said that the battery went bad and some thing else i forgot.

liquidr1 · 01-12-2008, 05:48 PM

How big of an amp did you have. I have no clue what the alternators on the new civics are rated at, but if you had huge amp drawing alot of current off your battery u may have seriously over worked your alternator.

ziwang55 · 01-12-2008, 10:44 PM

i had a 1200 watt

liquidr1 · 01-12-2008, 11:46 PM

Quote:

Originally Posted by ziwang55

i had a 1200 watt

Did you have a cap installed with it? if not that probably why your alternator went out.

ziwang55 · 01-12-2008, 11:48 PM

yeah i did

Midwinter · 01-12-2008, 11:51 PM

oh, shit! this happened to me too!they told me there was a loose wire and that the battery was faulty. all under warranty.

anavrin351 · 01-12-2008, 11:51 PM

better to have the car go into limp mode than your wang

ziwang55 · 01-12-2008, 11:58 PM

mine goes into pimp mode

***m1k3*** · 01-13-2008, 12:25 AM

its a 761 watt d class amplifier by infinity..

not too much, i never used my subs alot any ways..

luiek20 · 01-13-2008, 12:41 AM

Quote:

Originally Posted by anavrin351

better to have the car go into limp mode than your wang

quality_sound · 01-15-2008, 06:48 AM

Quote:

Originally Posted by liquidr1

Did you have a cap installed with it? if not that probably why your alternator went out.

You REALLY need to learn how the electrical system in a car works.

thisisdudewhoru · 01-15-2008, 07:47 AM

damn. I have a 850 watt alpine with a half farad cap on it. Hope this doesn't happen to me.

liquidr1 · 01-15-2008, 08:38 AM

Quote:

Originally Posted by quality_sound

You REALLY need to learn how the electrical system in a car works.

you know nothing of my electrical background. I have my associates in Electrical engineering, Computer engineering and am currently working on biomedical equipment technology (extremely electronics oriented)

Both my past 2 vehicles had 1000 + watt systems (installed myself) and never had any trouble out of my alternator or electrical system.

Dont just assume things about people you know nothing about

. Thanks:

whtdvl · 01-15-2008, 08:58 AM

nice..

glad to hear that they didn't try to blame you and say they wouldn't fix it

NIGHTHAWKSI · 01-15-2008, 09:05 AM

kind of weird that after you take the subs out it does this...but at least they are fixing it under warrenty, right?

***thatsnotstock*** · 01-15-2008, 09:11 AM

Quote:

Originally Posted by liquidr1

you know nothing of my electrical back ground. I have a my associates in Electrical engineering, Computer engineering and am currently working on biomedical equipment technology (extremely electronics oriented)

Both my past 2 vehicles had 1000 + watt systems (installed myself) and never had any trouble out of my alternator or electrical system.

Dont just assume things about people you know nothing about

. Thanks:

PWND

amdhunter · 01-15-2008, 08:13 PM

Quote:

Originally Posted by thatsnotstock

PWND

He wasn't pwned really... A cap gives the alternator an additional load because the cap needs to be constantly charged. This causes more stress on it than not having a cap at all.

***portabuddy*** · 01-15-2008, 10:15 PM

a cap reduces spikes.. the amp deaws a fluctuating amount of power, where as a cap is a buffer and draws a more constant amount of power. therefore reducing the strain on the alternator... this is exacly why they are used as noise surpression too...

01-12-2008, 12:42 PM	#1 (permalink)
*m1k3* t('.'t ) Join Date: Aug 2005 Location: Jax, FL Age: 19 Posts: 1,561 Mike iTrader: 2 / 100%	car went into limp mode.. i removed my subs the day before yesterday, did everything right, disconnected the power wire then unplugged every thing and took em out. soon after i turned my car on and it took about 5 cranks because i had reset the ecu, no biggie. yesterday morning it takes about 9 cranks and my bettery light and CEL come on... oh shit.. my car hesitates when driving and it wont rev past 3500 RPM. during gym period i check out of school and take it to honda where they will handle it (hopefully) i get a call back later in the day saying the alternator went bad and took the battery down with it (battery was low on power anyways) all replaced under warranty im just curious as to how this could of happend.. should i have drivin the car around mroe after taking out the amp? this is beyond me... __________________ 06 FG1 LX MT AEM CAI \| Magnaflow Cat-Back \| Comptech SS \| TWM Bushings \| Eibach Prokit \| Enkei Evo 6

01-13-2008, 12:25 AM	#10 (permalink)
*m1k3* t('.'t ) Join Date: Aug 2005 Location: Jax, FL Age: 19 Posts: 1,561 Mike iTrader: 2 / 100%	its a 761 watt d class amplifier by infinity.. not too much, i never used my subs alot any ways.. __________________ 06 FG1 LX MT AEM CAI \| Magnaflow Cat-Back \| Comptech SS \| TWM Bushings \| Eibach Prokit \| Enkei Evo 6

01-15-2008, 10:15 PM	#19 (permalink)
*portabuddy* The McGyver ofall McGyves Join Date: Jun 2007 Location: Mississauga Ontario Age: 23 Posts: 5,204 Bart Koscow iTrader: 7 / 100%	a cap reduces spikes.. the amp deaws a fluctuating amount of power, where as a cap is a buffer and draws a more constant amount of power. therefore reducing the strain on the alternator... this is exacly why they are used as noise surpression too... Last edited by portabuddy; 01-15-2008 at 10:28 PM.

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01-12-2008, 04:58 PM	#2 (permalink)
ziwang55 Senior Member Join Date: Nov 2007 Posts: 301 iTrader: 0 / 0%	thats interesting cuz that happened to me when one night i took my subs out and the car won;t start. i got it towed to the dealer. they said that the battery went bad and some thing else i forgot.

01-12-2008, 05:48 PM	#3 (permalink)
liquidr1 Senior Member Join Date: Jun 2006 Location: Greensboro NC Age: 24 Posts: 1,862 Dustin iTrader: 2 / 100%	How big of an amp did you have. I have no clue what the alternators on the new civics are rated at, but if you had huge amp drawing alot of current off your battery u may have seriously over worked your alternator.

01-12-2008, 10:44 PM	#4 (permalink)
ziwang55 Senior Member Join Date: Nov 2007 Posts: 301 iTrader: 0 / 0%	i had a 1200 watt

01-12-2008, 11:48 PM	#6 (permalink)
ziwang55 Senior Member Join Date: Nov 2007 Posts: 301 iTrader: 0 / 0%	yeah i did

01-12-2008, 11:51 PM	#7 (permalink)
Midwinter Senior Member Member Join Date: Jul 2007 Location: Los Angeles Posts: 286 iTrader: 0 / 0%	oh, shit! this happened to me too!they told me there was a loose wire and that the battery was faulty. all under warranty.

01-12-2008, 11:51 PM	#8 (permalink)
anavrin351 Senior Member Join Date: May 2007 Location: Seattle Age: 24 Posts: 2,034 Tyler iTrader: 3 / 100%	better to have the car go into limp mode than your wang

01-12-2008, 11:58 PM	#9 (permalink)
ziwang55 Senior Member Join Date: Nov 2007 Posts: 301 iTrader: 0 / 0%	mine goes into pimp mode

01-15-2008, 07:47 AM	#13 (permalink)
thisisdudewhoru Senior Member Join Date: Feb 2007 Location: bristol,tn Posts: 893 brian iTrader: 0 / 0%	damn. I have a 850 watt alpine with a half farad cap on it. Hope this doesn't happen to me.

01-15-2008, 08:58 AM	#15 (permalink)
whtdvl Senior Member Join Date: May 2007 Location: Gainesville, FL Age: 25 Posts: 2,247 iTrader: 0 / 0%	nice.. glad to hear that they didn't try to blame you and say they wouldn't fix it

01-15-2008, 09:05 AM	#16 (permalink)
NIGHTHAWKSI Senior Member Member Join Date: Nov 2006 Location: long island Age: 23 Posts: 14,735 Ian iTrader: 13 / 100%	kind of weird that after you take the subs out it does this...but at least they are fixing it under warrenty, right?