No. I could only guess that maybe it is electrical like battery or alternator or maybe the engine ground wire under the car on the drivers side between the oil pan and frame rail. The ground is easy - give it a tug. Mine was bad and broke in the middle when I pulled on it. For the battery or alternator, you could read live voltage below 2300 rpm and compare that to voltage at higher rpm. Easy tests - no need to buy anything.
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