What battery ecu voltage are you getting with torque

[pcguru2000]

I usually see 13.4 volts but sometimes it spikes to 14.

I was driving casually then decided to pass someone floored it, and got the u0073 code at WOT.

Is it possible that the voltage spike caused my adapter to choke or the ecu to choke?

What's the highest voltage you are seeing on the torque app?

I also have 0 mods. My car has a little over 1000 miles. And yes, I have my blutooth adapter plugged in all the time and yes I didn't shut off torque. But I never shut off torque when I'm not driving, never had this issue, and for it to happen at WOT, coincidence?

I'm still on the original factory oil. Oil is about 1/8" above full when engine just shut off. Overnight dipstick is 1/4" over full. Don't think this might be relevant but keep forgetting to ask if this is an issue also?

for your quick response!

[steve99]

Volts will vary as ecu controls charge rate depending on battery state and other parameters like if you doing hard acceleration. If its over about 12.5 it fine.


Oil level will vary hot to cold and if your not on deadcflat ground jist keep it between full and add marks

Of blittoh adapter is loose in obd port it can corrutp can buss signals momentarty and cause codes like u0155 or u0073

[pcguru2000]

So 14 volts is fine?

[pcguru2000]

I'm hitting almost 15 volts. According to tech repair manual is that normal?

[Tcoat]

Originally Posted by pcguru2000

I'm hitting almost 15 volts. According to tech repair manual is that normal?

You are fine. The battery needs over 13 volts to charge and high 14s are within the norm. The regulator will prevent things from over charging.

[HKz]

is your car driving differently..?

[pcguru2000]

Originally Posted by HKz

is your car driving differently..?

It's brand new and always been this way so I'm not sure. My old mitsubishi that was 8 years old would never go above 12.5 volts. So seeing 15 is shocking. I was hoping that someone had a manual with specs on voltage range.

I'm also worried about frying things plugged in to 12 volt accessory port or overvolting LED lights on the car.

[HKz]

Originally Posted by pcguru2000

It's brand new and always been this way so I'm not sure. My old mitsubishi that was 8 years old would never go above 12.5 volts. So seeing 15 is shocking. I was hoping that someone had a manual with specs on voltage range.

I'm also worried about frying things plugged in to 12 volt accessory port or overvolting LED lights on the car.

mine is usually around 14 volts...you're over thinkin it

[EndlessAzure]

This is normal and to be expected on all cars.

Nominal voltage for a fully charged battery is between 12 and 13 volts, depending on your battery.

Alternator output varies based on load, and will vary between 12v min to ~14v max. The higher voltage also to facilitates car battery charging.

Electronics you plug into the car should be able to handle this variation; automotive application electronics from reputable companies should be designed for it.

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The manual says to check engine oil level when the engine is completely cold, if possible. If not, wait at least 30 minutes for the engine to cool to evaluate your oil level. When the car has just been run, the oil is still distributed throughout the engine passages. Once the engine has cooled, the majority of the oil will have returned to the reservoir for evaluation.


The same goes for engine coolant level. When the engine is hot, a meaningful portion of engine coolant has left the closed part of the system and is in the reservoir due to elevated temperatures. Once the engine cools, the coolant will be drawn back into the system. This means that, if you top off your coolant when the engine is hot, you risk overflowing from the reservoir at a later date. Alternatively, if you only check coolant when the engine is hot, you might be actually be low on coolant when the engine is cold