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Battery temp sensor

4K views 18 replies 5 participants last post by  Clement 
Measure the resistance in ohms for all your cleaned up (and supplemented) grounding points. We’ve been cleaning them for a few years now. Use some dielectric grease to coat the bare metal to prevent rust.

I created a minimal wiring enhancement kit awhile back to reduce the overall resistance of the electrical system. The hot alternator cable is the worst offender by far.

To answer your original question. The ECM uses that sensor to monitor the battery and will adjust the operation of various things based on that data. You may get a DTC after a few drive cycles, so you really should put it back.

If you wish to keep it off, let us know if you get a DTC and see if engine performance increases or decreases as a result.
 
Looks like an Accent from your avatar.

Bullfrog is fine, of course. People reading this will usually have dielectric over specialty products. I only mentioned it because you didn’t say anything about the sealing of the connections, as a good electronics tech would. You have to remember the target audience.
 
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