Check engine light is on. Just got my Prius back together yesterday after water pump/thermostat/pcv/egr/cooler/manifold service. Was very careful to torque it all, went over each connection several times. I didn't put the cowling back on yet, will do so in the morning. I did connect the wiper motor to avoid an error code. Ran for a bit in mainentance mode, refilled with about a gallon and a half of antifreeze fluid. Tomorrow will get the car completely ready to drive. It sat for a few weeks but started up easily and battery is mostly charged. ODB scanner says "MANFOLD ABSOLUTE PRESSURE / BAROMETRIC PRESSURE CIRCUIT HIGH. Dr. Prius cannot seem to connect to this scanner. Any ideas, I'd be happy to listen. My plan is to get it out for a drive and see if the symptoms resolve.
A bit more background here. I did buy a new exhaust manifold off ebay. It was reviewed well by others but it is a cheap version. Forgot what I paid. I will clean the old manifold tomorrow and see if that fixes it. Also got a new EGR valve online from a Toyota dealer on a close out. A bit over $100 dollars. I can clean the old one as well. Wasn't getting this code before. Will also check MAP sensor to see if anything obvious is wrong. I suppose the first thing to do is just clean the MAP sensor and hope the code goes away .
