im in cali and about a month ago maybe more my friend took his car to have the knock sensor replaced and the water temp sensor? and the sender unit...
anyways when this was done i guess the battery was disconnected and as a result the ecu reset?
well.....
now im trying to pass a smog test so i can get the car and it wont pass because 4 codes havent completed yet and now matter how i drive it i cant get them to complete
egr status not complete
oxygen status
oxygen heater status
evaporative status
catalyst status....all not complete
i need at least 2 more of these complete to pass smog inspections.
anyone have any ideas why its been a month and still no readings? anyone recommend for me to do something? what can i do?

thank you