I had check emissions and check injection on my dashboard . Replaced per Renault service center : 2 o2 sensors ( upstream and downstream) , upper radiator hose , vaccum hose , thermostat assembly , throttle body , and 5 gaskets. After all that , still have check emissions on My dashboard and the car engine temperature stays at 0 ( minimum ) , and do not go up . I have no heat in the car ( is that due to the fact temperature stays at 0 ? ) And don't know what else to replace or do .