[RFI] Escalade and Power Line RFI

[Chuck Gooden]

Are you sure it was the check engine light?.  Most engine light that I know of will come on and stay on because the error code is stored in memory.  You can reset the error code with a ODB reader.



On December 14, 2025 11:38:31 PM UTC, James Jordan <k4qpl2 at gmail.com> wrote:
>Hmmm. Interesting. I have a check engine light that comes on every now and then but after a couple of days it’s off with nothing having been done. Shop has never found a problem. I assume system resets and doesn’t see anything. 
>My Audi is full of electronics and sleeps a few feet from my ham shack built into the garage with a 40m dipole almost overhead. The KPA1500 power supply is even closer. 
>I’m going to keep tabs on band and power so next time it happens I can see if there’s any correlation. 
>Thanks for the tip. 
>Jim K4QPL 
>
>
>Sent from my iPhone
>
>> On Dec 14, 2025, at 11:51 AM, K4RO Kirk Pickering <k4ro at k4ro.net> wrote:
>> 
>> Here's an RFI story that I've not encountered before.
>> 
>> https://www.motor1.com/news/781675/cadillac-escalade-power-line-lights-on/
>> 
>> Many thanks to all of the RFI hunters and experts who share their knowledge on this list, year after year. IMO, this is one of the most valuable email lists in all of ham radio.
>> 
>> —Kirk K4RO
>> 
>> 
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Chuck K9LC