I have a throttle body spacer and cold air intake with stock MAF. The truck only throws these codes when it is 20 degrees or less outside temp. I cleaned the MAF with MAF cleaner and checked everything under the hood for vacuum leaks. Found nothing. Is it possible to make it too easy for the engine to suck air. I know that cold air is more dense and the intake lets the engine consume more air but will it consume more than it can adjust for. Since it warmed up the check engine light went away.
