Vengeance68 Posted January 19, 2016 Share Posted January 19, 2016 To start with I have searched and searched and have found no clear answers, well at least not clear enough for me to spend money on. Here is the back story... So I have run into code P0725 after I had a bad cam sensor (bank 1). My 2005 GT 5EAT with 189k miles finally died and I had to push it about 2 blocks. She threw cam, crank, engine speed circuit, misfire 1, misfire 4, etc... I thought I had lost the motor. I got it to start and limped it home to fix it. I replaced both cam sensors, crank sensor, MAF and upstream O2 sensors. (the last 2 sensors were changed just because. LOL) All codes went away except the P0725 code. Car runs great in sport automatic mode and manual mode. In regular automatic mode it at times seems to stumble at light acceleration and retards timing a small amount when it does stumble. Gas mileage is good as always, oil looks good, tranny fluid looks good. I have no CEL and the car is NOT in limp mode. From everything I have read there is no Engine Speed Sensor so to speak. It is some sort of internal circuit in the TCM. Now I am looking at/for a new TCM and all I can find reference for is the AT Control Unit part number 31711AG803. My questions are; 1) Is that the right part number for what we call the TCM? 2) Does it require some sort of programming or flash from the dealership when replaced with a new unit? 3)Am I even close in thinking this is the issue? 4) Would it be beneficial to pull one out of a wrecked low mileage 5EAT? 5) Should I just sell the car and buy a late 80's Toyota 4cyl 4x4? Thank you, Jason Link to comment Share on other sites More sharing options...
Vengeance68 Posted January 23, 2016 Author Share Posted January 23, 2016 Bump... Anybody? Bringing the pain since 1968 Link to comment Share on other sites More sharing options...
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