Menu
Forum
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Car Audio Discussion
General Car Audio
Car Audio Build Logs
Car Audio Equipment
Subwoofers
Speakers
Amplifiers
Head Units
Car Audio Help
Wiring, Electrical and Installation
Enclosure Design & Construction
Car Audio Classifieds
Car Audio Classifieds
Car Audio Wanted
Classifieds Member Feedback
Gallery
New media
New comments
Search media
SHOP
Shop Head Units
Shop Amplifiers
Shop Speakers
Shop Subwoofers
Shop eBay Car Audio
Log in / Join
Test
Forum
Search
Search titles only
Search titles only
Log in / Join
Search
Search titles only
Search titles only
What's new
New posts
Live Activity
Search forums
Members
Registered members
Classifieds Member Feedback
Menu
Reply to thread
Forum
Car Audio Help
Wiring, Electrical & Installation
Negative battery ground?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="2023 LTZ" data-source="post: 8844987" data-attributes="member: 686684"><p>Welcome </p><p></p><p>I can share my experience w a sensor on my impala. It’s a current sensor on the negative, it reads voltage coming back through the ground to tell the body and engine control modules at what rate to charge. Having ac on or rolling up the windows, headlights, radio cranked all will vary the charge rate. </p><p>My sensor ring originally had the ground from the starter and the wire from battery negative. The sensor has a lead that plugs into something and goes somewhere lol. It also was crimped into the batter negative. My mistake came by crimping the sensor negative into the replacement 0 ga. That messsed it up. I tried all kinds of things that inevitably worked but were costly and unnecessary. Still solid but, the problem was resolved when I moved the sensor negative to a solid ground in the chassis. It’s almost like having the bigger wire caused uncertainty in the negative read.</p><p>I chased ground loop, changed routing, sizing and the fix came when I eliminated the ground I mimicked w the main battery ground integration into the sensor negative by separating them.</p><p></p><p>It’s now 4/0 from alternator to battery. 4/0 from battery to chassis then 0ga fused going back to feed the amps. I’m back the ground is made at a hole in the metal section between trunk and passenger compartments using 4/0 then distributed to a second battery, capacitor and on to amps.</p><p></p><p>Summary is you can work around the sensor but it may cause some chasing around if you get fluctuations in your charging system at minimum draw from the system.</p></blockquote><p></p>
[QUOTE="2023 LTZ, post: 8844987, member: 686684"] Welcome I can share my experience w a sensor on my impala. It’s a current sensor on the negative, it reads voltage coming back through the ground to tell the body and engine control modules at what rate to charge. Having ac on or rolling up the windows, headlights, radio cranked all will vary the charge rate. My sensor ring originally had the ground from the starter and the wire from battery negative. The sensor has a lead that plugs into something and goes somewhere lol. It also was crimped into the batter negative. My mistake came by crimping the sensor negative into the replacement 0 ga. That messsed it up. I tried all kinds of things that inevitably worked but were costly and unnecessary. Still solid but, the problem was resolved when I moved the sensor negative to a solid ground in the chassis. It’s almost like having the bigger wire caused uncertainty in the negative read. I chased ground loop, changed routing, sizing and the fix came when I eliminated the ground I mimicked w the main battery ground integration into the sensor negative by separating them. It’s now 4/0 from alternator to battery. 4/0 from battery to chassis then 0ga fused going back to feed the amps. I’m back the ground is made at a hole in the metal section between trunk and passenger compartments using 4/0 then distributed to a second battery, capacitor and on to amps. Summary is you can work around the sensor but it may cause some chasing around if you get fluctuations in your charging system at minimum draw from the system. [/QUOTE]
Insert quotes…
Verification
Post reply
Forum
Car Audio Help
Wiring, Electrical & Installation
Negative battery ground?
Top
Menu
Home
Refresh