The engine light came on and now when i start it it idle real high in park and it won't idle down. util i put in drive and if i put in back in park it idle high again it won't stop even if push the gas pedal down and let off.is it a throttle sensor

All the above is normal , except 2000rpm is a little high at idle . can be adjusted down to 1500rpm. the computer adjusts the engine speed . in drive the transmission loads up the engine idle drops to 1000rpm . in park engine unloaded rpm increase all normal.

Your map sensor is located in your throttle body and yes it can do that

You have a failed IAC (Idle air control valve) its on the throttle body,

Checking oil level won't tell you anything

You need to put a mechanical gauge on
the motor,you can't go by the dash for accuracy

You could have many things that need to be
done preventative maintenance wise before
you even start to diagnose the couple of current
issues

Dash Check Lights?
Codes?
Driven for two years & never worked on?

We can't guess,you need a repair shop to
give you the solution

Hi Cindy, As the engine check light is coming it is indicating a problem. Have a diagnostic scan carried out and let your technician determine the actual fault. It could be something to do with the state of engine tune or a defective speed sensor, but may also be a problem with the gearbox. Regards John

idle air control valve is bad replace it. at start up choke control runs till warm up while driving throttle opening controls engine at idle ,the idle air control valve.

Replace your hose going from intake to brake booster ( vacuum leak) check all other hoses also. Clean the throttle body. And a tune up probably wont hurt either.

Could be a vac leak, dirty throttle body, or faulty idle air control valve.
Is the check engine light on ?

Assuming you don't have any stray vacuum lines, I'd look into the TPS (throttle position sensor) Most idling problems can be traced back to the TPS.

check your IDLER