Could be Throttle Position sensor... it will make it idle high, and also it can make it idle low... it opperates the injectors, firing and all... a vehicle can run without the TPS but it will run rough.
Loose P.S. belt?Low fluid?Weak P.S. pump?Air in System?
it has a low idle. Can also be a vacuum hose leak.
possibly a vacuum leak, low fuel pressure, or the idle air control has failed,
To test the alternator if funds are low, let the motor idle and remove the negative battery cable, if the motor dies its probably the alternator.
I have the same problem with my 03. I havent figured out the check engine light but take it to a dealer and they will fix the idle problem. they know about it and if you take it to them they'll fix it for free. it has something to do with the computer needing to be cleaned out.
On the accumulator.
9 times out of 10 is a your EGR valve stuck open due to rust, do a google search for protege low idle you'll find it! good luck
95 eclipse has a low idle
low idle and uneven idle
Check the Idle Air control valve. This lets air bypass the throttle body plate when the car is at idle or low revs.
Idle speed is not adjustable. It is controlled by the engine copmuter. If your idle speed is too high or low you have a problem with a sensor or the idle air controll actuator. Also, a weak battery can cause the idle too be erratic
It is the key fob battery.