Sint3k

Hello all,

Recently I was playing with auto enginuity and i noticed my battery current with the engine running is -3274, and with the engine not running 3270ish.

I'm trying to determine if the computer some how caculates load based on these numbers so I need a good reference because i have modified my eletrical system i cannot trust these numbers to be true.

So, my question is. Anyone out there that has a scan tool with the capbility to read from the body control module, please take a picture of what your Battery Current is with the engine running, and with the engine not running please

I would prefer, if possible, if it was a picture for validity purposes.

Thanks

spawne32

iTrader: (2)

ill see what i can pull up with HPT tomorrow, just remember if you go and replace it, there are two different styles depending on the input voltage to the BCM.

Sint3k

I doubt hp tuners will be able to read that live data, but if it does, great

spawne32

iTrader: (2)

didnt have a PID for it, you sure that current sensor measures amps? whats modified on your electrical system

91parkave

iTrader: (4)

There's also control module voltage. But what i'd it that you feel is unreliable. Pcm is going to control the voltage regardless

Sint3k

That's partly the reason I need another example.who knows

The current sensor plays a part in the controlling of the pulse width modulation to the alternator. My voltage has spiked to 14.5 while driving all the time.It used to drop to 12.6 and up depending on load, battery condition,etc so I'm pretty sure that sensor bit the dust, just wish someone else could read that pid to confirm my suspicions, but I'll find another way to test it if need be

Cocor

iTrader: (1)

It senses the load and adjusts the alternator as needed. I unplugged mine and I get a constant 13.75v

spawne32

iTrader: (2)

Those sensors are 10 dollars, just replace it and see if it helps your issue.

rottonj

iTrader: (4)

I believe you have to cut the battery cable off to do it. 10 dollar part and a bitch to replace.

91parkave

iTrader: (4)

Or....you could cut the cable and go to ace hardware for a splice kit and splice the wire backtogether.

rottonj

iTrader: (4)

You bet thats what I would do before removing that whole cable.

Sint3k

That's no big deal, I've already done that because I run a 0 gauge wire from the alternator to the battery on a marine style post with all the cable crimped with eyelet ends.it was the sensor after testing. I also do not like replacing parts just because, regardless how cheap .I like to know how it works
Thanks everyone