Mazda Millenia P0510 Code: Closed Throttle Switch Malfunction - Diagnosis and Fix
I own a Mazda Millenia L and recently received a P0510 diagnostic code, indicating a malfunctioning closed throttle switch. I'm wondering if this is a straightforward repair or if it requires more extensive work. The issue started with erratic gear shifting in the morning, though the car has since driven smoothly. I'm looking for insights into common symptoms, potential causes, and typical repair procedures associated with this code on Mazda Millenia L models.
Hi, I'm also experiencing a P0510 code on my Mazda Millenia L. I noticed erratic shifting in the morning, but after that it drove fine. I took it to a mechanic today and they confirmed the closed throttle switch was faulty. The fix involved replacing the sensor, which is a relatively simple procedure. If you're getting this code, check for any signs of rough shifts or hesitation during acceleration—those are common symptoms. Let me know how your repair goes!