I had a ESIM System reading.Whats the average price to replace the mmonitor?

First you have to find out what is really wring with it. It could be the monitor, a leak anyplace in the system, the pump or a solenoid that has failed. Guessing could be an expensive way to diagnosis this system. The ESIM is located in the left rear quarter panel and not difficult to change. I can email the procedure if you want it. email me at freedom@freedomauto.com