Conditions for Setting the DTC

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

The engine speed is 900 RPM or less.
The throttle valve is closed.
The MAF sensor output is more than 2.2 volts.
The condition is present for at least 10 seconds.

OR:

The throttle position (TP) sensor input is at least 0.1 volts.
The MAF sensor output is less than 1.0 volts.
The condition is present for at least 6 seconds.