I have problems with the oil of a che

The focus of the oil precion of a Chevy Monza 2009 is turned on, I already changed the pump and the bulb and still follow the problem I can do?

As advice, it measures the oil precion with a gangster to be sure that it works, if the precion lifts the cable can be bitten and nothing else, but make sure the precion first.

Check if the cable is not making mass with the vehicle, if it changes the pump and continue with low pressure, it is possible that it should start disassembling due to possible causing problem or poor maintenance in terms of oil

First be it if the dubievos (pointer) sound because if they do not sound, it means that your pump works in good condition .. and that it could only be the bulb cable .. now if the aiming sounds .. it would be necessary

The first thing you should do is be sure of the pressure, measure it with a pressure gauge, you must do it with the engine at normal working temperature to be a real and reliable reading, if in that test it throws you as a result of low pressure, you must worry, because it could even be a wear between metals and crankshaft.