Okay I just finished installing my tranny back into my car. The problem is for some reason I am throwing the following code: P1860. I checked it and it comes out to be this: TCC PWM Solenoid Circuit Electrical.

Now does anyone have any idea what could be wrong with it? The other thing that I have noticed is that it shifts fine while I am in drive but if I put in into over-drive it will not engage to 4th gear, just stays in third. I am very lost. I would contact the builder but unfortantely they are on vacation all this next week and will not return until the following week. I desperatley need my car like last week. I am very hesitant on doing any driving as it is, defintely do not want to do any harm to it.

Appreciate any input on this matter in advance.

 

looks like you have the same issue as me except mine starts in 2nd and not 1st. The trans place was telling me it is an electrical issue...i will try and post back when i find whats wrong.