2001 chevy cavalier Z24 2.4 twin cam. oil light is on. I replaced the oil pressure sender. I was in the process of replacing the oil pump when I came across a statement in the manual to remove the oil level sensor connector.my question: is there a oil level sensor on the 2.4 twin cam and where is it located?

Hi Rejean, I suggest you have the oil pressure sender unit inspected before thinking of replacing the oil pump. If it's the sender unit the job will be a fraction of the cost of an oil pump replacement, which means opening the engine. Regards John

The oil pump is the next step.
It could be bearing or other things like blocked return flow that did not come out with the flush, bearings on the cam shaft etc.

Is the engine receiving fuel? Check fuel pump output and fuel line pressure.
Check HT lead and coil connections.
Check spark plug condition.
Check air filter condition.

http://www.2carpros.com/questions/chevrolet-cavalier-2001-chevy-cavalier-timing-chain

Fuel Pump Removal & Installation To Remove:

1. Disconnect battery negative cable.
2. Relieve Fuel System Pressure.
3. Raise and safely support vehicle.
4. Remove Fuel Tank.
5. Remove fuel sender assembly by turning cam lock counterclockwise.
   
   
6. Remove fuel sender assembly from fuel tank.

To Install:

1. Using NEW O-ring seal, install fuel pump sender to fuel tank.
2. Install cam lock assembly and turn clockwise to lock.
3. Install Fuel Tank.
4. Cycle the ignition switch ON and OFF to pressurize the fuel system and check for fuel leaks.

If your oil pressure gets to low it can turn off the fuel pump. This may also have saved your engine. The ECM turns on the fuel thru the fuel pump relay for about 5 seconds. When engine is running oil pressure sender supplies the voltage to the pump. When engine shuts off check oil pressure and voltage to fuel pump.

You may have a defective oil sender or oil pump or the wire is loose. Why did you replace the sender and pump. If this was going on before this you couple have an engine issue. Take it in before it destroys the engine. Chrysler/Dodge has has lots of issues with oiling problems.

if it's a 2.4 twin cam, not gonna be fun 6 hrs min, remove timinig chain cover, timing chain, and housing, next remove exhaust manifold, the you can get to it, sorry gotthe same car

I would've started with the coil packs, modules, boots and plugs myself. They give many problems on the quad 4s?.