Hi there my obd2 scanner says po741 on my 2005 toyota corolla with 124k miles. I have been reading so many conflicting answers about what the problem could be or the symptoms it should show or not show. For example the car runs fine and I do not notice anything wrong while driving or shifting.
I have also read and heard from a smog mechanic that there could be a problem with the ecu throwing a wrong code which was a problem with that year. Although I have read that other ppl have had there ecu replaced with the same code popping up and other ppl changing the solenoid with the problem still showing up. Ive been told the torque converter solenoid is in the transmission fluid pan and if thats the case how do I check to see if its working with my voltmeter? Any suggestions? I would like to do the job myself and replace the solenoid it thats the problem. But I still dont know how to go about making sure its the solenoid rather than the ECU. I am stuck cause I dont want to take it in and pay 125$ for a mechanic to say something I may already know.
Friday, June 21st, 2013 AT 4:31 PM