What's good everyone. I have a 2012 Mazda 5, well my wife does. It use to be her daily driver. She loves this vehicle. Well about a 2 years ago we started having transmission problems with it. Shifting and everything. Now I'm a believer that if i don't have to take it to a mechanic i will not, main reason being i love working with my hands and get a great satisfaction when i fix something and im retired so it gives me something to do. So about 2 years ago we started having problems so i did some research and it seems as if i had a bad tcu. I sent it off had it looked at they said it had some bad things like capacitacors and what ever and had it fixed. Or so i thought. Long story short ended up getting my money back since it did not fix the problem. So i got a lil frustrated and by then we had gotten the wife another vehicle. So we put this on the back burner. Now we are trying to get it back on the road as my oldest one is starting to drive. So my wife wants her car back and give my daughter the car she is driving one of the main reason the Mazda has a whole lot more get up and go than what she is driving and i will not say what kind. If i did i may get kicked off the forum and i just got here. Well i got another TCU from a wrecked vehicle and it was working great on the wrecked vehicle, but when i installed it into my vehicle i had the same exact problems as the one that i had in it before. Has anyone else had this type of problem. I have some codes u0101 lost communication with tcu, p0451 evaporative emission system pressure sensor/switch range performance, p0757, shift solenoid b stuck on. I also replace every solenoid in the transmission. Now i have a code reader and i have cleared the codes and they come right back. I also ran the codes with out the tcu connected it came up with the same code except the on p0757 shift solenoid stuck on. Anyone else came across anything like this. I wanted to ask before i drop money on a ECM. Which is my next move. Oh the vehicle only has 128879 miles. by todays standards that is practically brand used. Also will not go into reverse. I have to flintstone it to get it out the yard.
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