My check engine light is on and it idles really low at about 300 rpms and dies. i have to keep one foot on the gas and one on the brake to keep it going. went to autozone and had them hook it up to the scanner, and it said "results too lean" no idea what that means and neither do they. i will say i just had a tune up and my ignition coil replaced.

IAC - idle air control problem possibly .( You can drive it if you use your left foot to brake but keep the gas pedal down to keep the RPMs up.) Wouldn't be a fuel filter , if fuel filter was clogged partly it would idle ,but would lack power ,low fuel pressure at higher speed's . Do you know what IAC valve is ,an how it works ?
Idle Air Control Valve
Or maybe the EGR valve pintle is covered with carbon an sticking open .
Or possibly a dirty or bad MAF sensor - mass air flow sensor - the PCM - engine computer needs info from this sensor so it know's how much fuel to feed the engine .
Hooking up a professional type scan tool to view engine sensor data cut's down on guessing as too what the problem is .

007 Idle Speed Problems Scan Data for Idle

Sometimes that's caused by a vacuum leak near the manifold area.

Sometimes air in the coolant will cause an idle problem. Air will keep the air temp sensor from sending proper info.
Hope this helps.

Should be on or near the fuel injector supply rail.

have OB scan run, even if there is no light on (check engine) it should narrow your choices

I doubt the two problems are related.
The computer uses an idle speed control valve to regulate idle speed. The valve controls the amount of air entering the intake.
You should have a check engine light on and also a stored trouble code for the valve. It could also be a problem with the throttle plate in the throttle body.

Might be a Throttle Position sensor. Is the check engine light on?

could be the idle air control valve. if you remove your air intake tubing and can see into the throttle body just check to see if its dirty. if it is try to clean it with an aerosol spray can of carby cleaner. good luck.

Check Engine light is on. Find out what DTC (diagnostic trouble code) is set and I can help you more. You can get a code puller from your local parts store.

check\replace spark plugs, wires, cap, rotor, air filter and fuel filter fi you arent totally sure there in good shape since they are maintenance items anyways. any check engine codes?

A faulty gas cap can cause the sensor to come on.
Clean out the throttle body with a cleaner and see if the idle improves.