Saturn ION CODE p2174

Question

I can not find a code P2174 for a Saturn Ion, 2007 anywhere. Is this code even for a Saturn Ion?

Answer 1

P2174 Throttle actuator control (TAC) system - Sudden low air flow detected.

This is a valid code even for Saturn, Both the MAF (mass air flow) and the MAP (manifold absolute pressure) sensor report this condition , If you get P2174 with a lean code look for vacuum leaks especially at the brake booster vacuum hose for any leaks and vacuum leaks at the intake, A plugged exhaust can also set this code condition