I was driving up my hill today, and all of a sudden the car started hesitating and bobbing, my heat guage sky rocketted, my rpms dropped to nothing, my gas dropped to nothing i beleive, i put my hazards on and my rpms started bobbing with the hazards, i turned the car off, and popped the hood, i was happy the car wasnt overheating since that why i put this jdm d15b sohc vtec into the car (stock motor blown headgasket overheated for months, drove it till it ****), the battery cable was a little loose so i pushed it down, i started the car and had like 8 volts on my meter. I start driving home i was like 1 min away, and the rpms were bobbing, my heat went to normal, i pulled in and turned the car off, the heat guage went to hot while car was off, i tightened the battery cable all the way, started her up and still low volts, my indash lights very dim, turned my flashers on and the rpms still bobbed. Can anyone help me please?

 

Also when i hit my horn, its very faint and the heat guage flies up and goes with the horn depending how long i hold it for bump

 

Check the engine harness ground, mainly the one next to the water neck/thermostat housing.

 

I have its secure

 

Check your battery for proper power using a voltmeter so you can get a second reading, and if the numbers are coming up low, I would check the alternator. When mine went, the guages went straight to hell so it would be a good thing to check so your battery doesn't completly die on you.

 

ya for sure, check the bat, and the alt. alternators make the electronics go nuts when the die.

 

my alternator was loose, so i tightened it hoping taht would help, but no, when i hit my brakes my heat goes up, when i put my lights on the car dies, everything blinks when i hit brakes, do you think its def the alternator, what is the alternator power supposed to be at? volts or what ever?

 

You can always try installing an alternator that you know is good (if you have a friend or something that will let you borrow theirs).

 

with the car off you should have 12v between the +/- of the battery.

with the car on there should be around 13-14v.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crx_88_si &raquo;</TD></TR><TR><TD CLASS="quote">ya for sure, check the bat, and the alt. alternators make the electronics go nuts when the die.</TD></TR></TABLE>

this is your problem.

 

i hate this, every week something happens, i was wondering since i have the jdm d15b sohc vtec, what alternator would i have to get? And i was wondering how to i change the alernator, last time i tried i couldnt get it out the top or the bottom, i was told i have to undo the motor mount, is this correct? and please help me out with which alternator to get, thank you

 

bzump

 

help

 

Any D-Series alternator should do unless there are changes between the OBD levels.

 

use one from any other 88-91 civic/crx.
you can also use one from a 92-95 civic. I does have one extra rib on the alternator pulley but it will work just use the inner 3 ribs for your current belt.

 

yea i used the obd0-obd1 conversion harness, but used my stock si engine harness, so i should be able to use my old alternator right? , my motor is from a jdm 92-95

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SIhatch90 &raquo;</TD></TR><TR><TD CLASS="quote">yea i used the obd0-obd1 conversion harness, but used my stock si engine harness, so i should be able to use my old alternator right? , my motor is from a jdm 92-95</TD></TR></TABLE>