What is the vehicle vin? That voltage may come from power relay. When you unplug sensor, the computer may have used default maf signal. I believe that relay should energize when you turn on the key. There are several systems that use that same voltage. You may have to do continuity test on wire for maf voltage. I know you jumped voltage to that circuit, maybe no signal is better than faulty signal if the computer uses a default value.
What was the actual code #, I guess I can look it up? I can only talk to you about the basics. The expert title under my name, I think refers to how many questions I've tried to answered and not my expertize.
Thursday, November 12th, 2015 AT 11:01 AM