Need help - 2009 Aveo Error Code P0171

[Nirvanahsb]

Hello all, I've recently been having problems with my Aveo. The check engine light came on a couple of weeks ago and the car seems to have a loss of power/slight hesitation taking off. When the hesitation occurs, the rpms start to climb as uaual, then between 2000-3000, the gauge seems to fall a bit.I found I had a leaky valve cover gasket, which has been replaced. The light is still on and the hesitation is still occurring but I'm lost where to go next.

Any suggestions?

[avguy]

There is a recall on the '09 coil wires and plugs. Was that completed for your Aveo?

[xintersecty]

This is comical. Maybe it could be cracked air intake?

[Nirvanahsb]

Thanks for the suggestion. I found that it's cracked along one of the ridges. Since I'm going to have replace the intake hose, I'm thinking of just switching the intake system to a short ram.

[Nirvanahsb]

So I got the hose fixed and cleaned the throttle body, but the code is still there and now the car is doing something different. The car starts, runs rough for a couple of seconds and then dies. The only code showing is P0171. When I cleaned the throttle body, I did it while it was still on the car because I don't have the tool to disconnect one of the lines running to it. I've checked for unplugged sensors and hoses, but don't see any.

Does anyone have any suggestions for what I should check next?