Can an Exhausted Battery Cause Uneven Engine Operation and High Fuel Consumption?

Hello. I wanted to ask my colleagues to confirm my guess.

As probably in most of these frosts some problems appeared.

My looks like this. I start the car in the morning (it turns on poorly, the lights dim, but it catches quickly) after starting the drama. The car shakes, it does not accelerate from the exhaust, it smells of fuel. Combustion according to the load of 26l After heating, the situation improves. After a long ride, everything is ok.

Of course, I was thinking of the probe, the stepper motor (the revolutions are waving) and the flow. And this morning the starter is not spinning the battery died. It went to charge after putting it in the car, it fired perfectly, it was great, all the symptoms disappeared, fuel consumption according to the 15.5 limit.

My question for you. Is it possible that such flowers happen because of the exhausted battery?
Basically my line of reasoning is this. Weak battery - the car fires but the power consumption of the battery when charging is so large that there is no electricity for the spark and all the receivers in the car, which makes the car work unevenly (not all cylinders) generally after charging the battery, the car runs perfectly. Somehow it fired but even the central locking did not close the door. 15 minutes with the ignition on, he was able to discharge the battery and the car did not want to start. ??

I will add that the car is a bmw e32 m30b30 without gas (until frost -20 it was easy) the battery has 5l

Thanks to everyone for the answer and best regards!

Diamond

The theme with the battery is a rather mischievous theme, the car after firing receives its voltage from the alternator and I assure you that it has enough electricity for everything that you must have frozen.

in general, I noticed that everything subsided after connecting with his hand and the car was standing all day (where it had problems with uneven work after a whole day earlier). Probably the computer deleted errors, but do errors and ecu deletion have such an impact on the work? Generally, I was supposed to buy a new battery anyway, but I thought that I would do it by spring.

To sum up, a weak battery has no effect on, for example, a weak spark?

adamblonsky wrote:

The theme with the battery is a rather lame theme, the car gets its voltage from the alternator after starting

Not entirely misleading because if the driver has too little voltage, miracles can happen. If the situation repeats, measure the voltage on the battery terminals 10-15 seconds after firing. at a voltage lower than 12 V, do not regret the PLN and replace the battery.

And you know, buddy, that cars are serviced and serviced regularly, in accordance with the manufacturer's recommendations, regardless of whether something "screams" on the instrument panel or not
This is the rule ...
You make bizarre conclusions because you have no idea about diagnostics
You have to use the workshop ...

My grandmother has almost 20l and the oldest Bavarians know how much mileage, but it stays well . The problem is that in a 20-liter car, something breaks every now and then and you (grandmothers) need to repair it. The problem occurred a few days ago and I have been looking for the fault since then. I use the workshop when it is necessary and when I can fix something I fix it myself.

But thanks for the answer, you contributed a lot to the topic, your help is invaluable.
greets

ps how do you know if and where he has his car serviced? You make brilliant conclusions, buddy, after reading a few sentences. Do you read all the posts in the head?

I would try to check / replace the ignition coil / coils because something seems to me that there is simply no spark on one of the cylinders or it is too weak.

If you make inferences about whether a charged battery pack helps, it's rather obvious
And whether the car is old or not, you still need to be serviced ... or know each other well ... at least you have a book like "I fix it myself" or whatever ...

the basic question is why after charging the battery the engine works perfectly? If the coil were damaged, the problem would not solve itself.

I repeat the question. Can a discharged battery burden the alternator so much as to disrupt the operation of other devices?

To my friend "autoas", if I knew each other well, I would not ask on the forum. I already had a few cars and did a lot of each one myself. The BMW m30b30 is new to me, so I ask. Secondly, there is no book "I repair myself" for my car, only an English service book. Third, you have my question above. (read carefully) I don't ask if charging the battery will help or not. The forum is probably for people who want to help, help and answer the questions asked. If you can help me listen, if you can't, don't answer.

Various "bushes" may appear in the controller's memory during the start-up on a falling battery. If there are checksums, it will catch it and reload it with default values, if not, it will apply it, if it lights up at all, it will take a while for him to "recover".

diamentowy wrote:

the basic question is why after charging the battery the engine works perfectly? If the coil were damaged, the problem would not solve itself.

I had a case where the coil worked properly in normal driving and it stopped working in the area of 2800-3200 rpm at high acceleration, so the assumption that "if something works sometimes it is definitely good" is wrong.

diamentowy wrote:

I repeat the question. Can a discharged battery burden the alternator so much as to disrupt the operation of other devices?

I repeat my answer, measure the voltage and you will know if it is weighing you down or not.

Buddy, don't fight with the smarter ones or you'll lose. you ask Are you asking for help on the forum? Probably not ... Hey, you write that your errors have been deleted after disconnecting the batteries ... If they were deleted, they were some ?! And the errors are the orange indicator light on. And the orange indicator light says: "You can go, but fix it as soon as possible." Are you asking whether errors (service mode) can disrupt the engine's operation? It's like asking if a virus can harm a person ... And as for the question about the battery - even the most discharged battery should not affect the engine's operation. A damaged battery can have an impact. Five-year battery may have an effect. Even if part of the active mass lies at the bottom of the cell instead of on the plates, shorting the plates.

I did not check the errors because I had to remove the battery, they probably were, since the check was burning.
Someone who writes that he is smarter is rather conceited and therefore stupid.

I asked if the old battery has an influence, a few of my colleagues replied matter-of-factly without unnecessary deliberation.

It has and there is not. Are you looking for an excuse to buy a new one? So the time to do so, 5 years is a lot for a battery. It is enough that the voltage dropped too much during the start-up and the engine controller could lose the settings. I close.