The OBDII trouble code P1121 is due to your throttle position sensor signal being lower than expected by your ECU. Problems that arise from this OBDII...
Learn how to install car camera mounts correctly, choose between single and triple suction cup rigs, prevent vibration, protect your vehicle's paint, and capture better automotive footage with GoPro, DJI, and Insta360 cameras.
Everything you need to know about alternators in one place. Learn how to recognize failure symptoms, test charging voltage, diagnose wiring problems, compare alternator amperage and find compatible replacement parts.