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Check Engine Light After Storage

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Old Oct 11, 2025 | 05:38 PM
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Default Check Engine Light After Storage

My 2024 992.1 CS Has been in a car storage facility for 3 months, they use trickle charges, check the tires etc, climate control etc. It has less than 4K miles on it and had it's first service 2 months prior to service.
I went today to take for a drive and the notified me that the check engine light was on. I took it for a drive and everything seems ok, drives normal and no other warning lights
Any thoughts? Was thinking of getting a OBD2 reader before taking it to the dealer. Any thoughts on a good reader?

Thanks.

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Old Oct 11, 2025 | 05:55 PM
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since it's under warranty I would just take it to the dealer
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Old Oct 11, 2025 | 06:33 PM
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Originally Posted by Picaso
My 2024 992.1 CS Has been in a car storage facility for 3 months, they use trickle charges, check the tires etc, climate control etc. It has less than 4K miles on it and had it's first service 2 months prior to service.
I went today to take for a drive and the notified me that the check engine light was on. I took it for a drive and everything seems ok, drives normal and no other warning lights
Any thoughts? Was thinking of getting a OBD2 reader before taking it to the dealer. Any thoughts on a good reader?

Thanks.
The battery may have discharged to too low a voltage. I had a CEL for the same reason, but it cleared itself after a few drives and lock/unlock cycles.
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Old Oct 12, 2025 | 11:33 AM
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You need to get that code read to know exactly what is happening. Some device didn’t provide the expected value. My guess is that it is emissions related and that if you drive it under varying speeds and loads it will go away. Hard to say though.
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Old Oct 12, 2025 | 11:48 AM
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Small rant, but why do modern cars still force you to use OBD2 readers? Why can’t you just load up a screen on the car itself (because we know how every car now has screens in spades!) displaying the EXACT error that is happening?
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Old Oct 12, 2025 | 11:52 AM
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Originally Posted by Tupper
Small rant, but why do modern cars still force you to use OBD2 readers? Why can’t you just load up a screen on the car itself (because we know how every car now has screens in spades!) displaying the EXACT error that is happening?
Because of the governments we vote for. Regulations. Another great example: on the 992.2 we now have to pay $17 to unlock the car for one hour to work on it. All in the name of cyber security protection enacted by the European Union.
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Old Oct 12, 2025 | 11:57 AM
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Originally Posted by Tupper
Small rant, but why do modern cars still force you to use OBD2 readers? Why can’t you just load up a screen on the car itself (because we know how every car now has screens in spades!) displaying the EXACT error that is happening?
I think the original idea behind OBD2 was to make it easier and universal, but these days it would be nice to get more info from the car itself. Unfortunately we also live in a world where the coolant temp reads 194 no matter what until there is actually a problem.
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Old Oct 12, 2025 | 12:40 PM
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Originally Posted by Tupper
Small rant, but why do modern cars still force you to use OBD2 readers? Why can’t you just load up a screen on the car itself (because we know how every car now has screens in spades!) displaying the EXACT error that is happening?
Most likely for the same reason that the IRS makes you buy Turbotax rather than the IRS providing its own software.
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Old Oct 12, 2025 | 12:55 PM
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Originally Posted by vanlieremead
Because of the governments we vote for. Regulations. Another great example: on the 992.2 we now have to pay $17 to unlock the car for one hour to work on it. All in the name of cyber security protection enacted by the European Union.
Pretty much the opposite. Without .gov we would be completely locked out and dealerships would be the only ones who could do anything on the car whatsoever.

Every obstacle is designed to guide people into dealerships and drive profits.

Don't believe? Just look into what companies like John Deere or Apple argue in court. We can't let farmers work on their own tractors because they will hack the ECU to pirate music..... etc etc etc.

It took Right to repair legislation to even get access from these companies. The reason they don't make it easy and just give you the diagnostic information is because they are not required to.

Last edited by Mike818; Oct 12, 2025 at 01:05 PM.
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Old Oct 12, 2025 | 01:00 PM
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Originally Posted by M3Inline6
The battery may have discharged to too low a voltage. I had a CEL for the same reason, but it cleared itself after a few drives and lock/unlock cycles.
Agreed.
Same happened to me.
Clears in 10-15 mins of driving.
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