Replaced Inverter Coolant Pump, now there are more issues with engine.

I replaced the Inverter coolant pump for my 2005 Prius. But now when I start the car it sounds and feels fine at first, then the idle sometimes with rocket really high for a few seconds then come back down to normal. When driven it is normal for a few minutes or so, then it will rev high for a second then low and back and forth quickly, with no power going to the wheels even though the car is in drive.

I ran a Mini - vic obd2 scanner with techstream on a laptop to the car. Got quite a few codes and some questions.

C1241 - ABS/VSC/TRAC
C1242 - ABS/VSC/TRAC
C1300 - ABS/VSC/TRAC
B1421 - Air Conditioner
B2775 - Immobilizer
B1242 - Smart Key
B1271 - Gateway

Also for the "Engine and ECT" system it said Inc under Monitor Status.

I am pretty confused because I never had these problems before replacing the Inverter coolant pump, also worried that I somehow messed something up while working on the pump.

 

Is there any reason I wouldn't be getting this code, I did take off the box that goes on top of the throttle body so I could access and take off the coolant reservoir, as well as taking off all 4 coils. I may have hurt something while doing this but I was very slow and careful while taking these off and putting them back on. The valve in the throttle body in my car is quite dirty as well.

 

Thanks for getting back to, I'm 17 and trying to figure out what's wrong with my car. I swapped out the pump because there was a leak and it didn't seem to be working. The symptoms the car has were there before I swapped the pump, so it's probably not related to my work on the inverter coolant pump.

Do you guys have any other ideas for me?

 

Two months ago while I was driving it suddenly shifted into neutral and the engine turned off while I was driving, all the dash lights turned on, including the triangle of death. After parking the car I couldn't start it or get it into ready. Towed it to a Toyota dealership and they said a new 12v would be first to be replaced, after the replaced it they said to bring it back if any more problems showed up.

Drove it for a week and everything was just fine. Check engine light came on and for some reason I decided to continue driving it for about a week, then it broke down again. Doing the same thing when it broke down the first time, shifted into neutral while I was driving and shut down the engine, as well as all the dash lights turning on.

After parking it and unplugging the 12v overnight. I plugged it back in and it was able to start, and drove it back home. Checked the inverter coolant and it was low, also saw some coolant dripping from bottom of the car.

Replaced the inverter coolant pump and fluid, bled the system. But the bleed valve was clogged when I went to use it, so I cleaned it before bleeding. Checked other hoses for junk in them but everything seemed fine. Got the car into ready mode and started it to make sure the new pump and system worked, everything was working and sounded good. Drove it around the neighborhood for an hour and then all the dash lights turned on. It started having huge lag when I pressed on the gas pedal and it would rev high for just a second then back down, when it did rev there was also huge lag before the power went to the wheels.

Turned everything off and got my moms old aftermarket OB2 reader she bought years ago. Reader didn't work at first and we needed some software, got it all working and downloaded TechStream and got it working with our reader. Used the reader to get me some codes and I got, C1241, C1242, C1300, B1421, B2775, B1242, B1271.

That was the last thing I've done with the car. Just trying to figure out what is wrong with my car.

Also has 160,000 miles on it.

Thanks for the help.