At Wit's End

[thstone]

Take a look at this page: checkenginelightcausedbymassairflowsensor - mikefocke2

[Jager]

You can try disconnecting the MAF sensor to see if the idle changes. It will not hurt the engine to disconnect the MAF for a short period of time.

You can also try resetting ECM by disconnecting the battery and wait a few minutes then reconnect it. You will need your radio security code to activate the stereo system after reconnecting the battery.

[sb01box]

The symptoms are: 1) car throws codes P0410 and P1411 as soon as the secondary air monitoring system kicks back in after a CEL reset, 2) engine hunts for idle between 600 and 1000 rpm after coming up to operating temperature, and 3) remote key operates unpredictably.

all ties together as engine intake/exhaust/cat/O2 but the unpredictable remote key does not.

but if you assume the electrical to be the root cause, remote key also ties in.
I would check the battery. volt meter in DC and AC.