Re: EEC-IV code 511
I gave this up, and stored the car for the winter. Now I am trying to solve the problem, but am stuck again. I still sporadic have the 511 code. Pin 1 seems to have 12.7 volt when power is off, 12.5 volt when power on engine not running and 14.6 volt when engine is running. From time to time I am not able to read fault codes. This is when "Check Engine" lamp is on all the time. Could it be that the self test never completes? Does anyone have any suggestions?