× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Code P1391, P0320, Interference on 5 volt reference
Posted to Technical Discussion Forum on 2/13/2020

!st ck the charging system for AC leakage - AC voltmeter will do the trick at the battery w/an electrical load.

Here's what you might try; you say the car runs but poorly. So, with all cam/crank sensors connected, start and run car - disconnect, say the cran... Login to read more.