2007 Pontiac Montana SV6, what's wrong with my vehicle?

Question

I keep getting same codes on scanner EV C O OH
What do they mean and how can I fix them
I don't use my air conditioner there is no freon in it
I am using a Innova 3020rs device

I would like a real answer not generic just want to know what to do

Answer 1

EV = Evaporative Control Monitor
C = Monitor is Complete
O = Oxygen Sensor
OH = Oxygen Sensor Heater

Unfortunately, those codes do not indicate anything, just mean that the components are tested. You need to get an OBDII code (e.g. P0240, or something similar) so you can get a better idea of what the problem is.

I'm not familiar with the Innova 3020rs and I'm not sure why your device is not giving you an OBDII code. My only suggestion is to try to get the OBDII code with another device.