aec07716

I recently performed a basic tune up; spark plugs. spark plug wires, fuel filter, air filter. Prior to the tune-up the truck was bogging down on the highway..so considering it was never tuned up, thats what I did. After everything was installed It started to idle very rough, and threw a code p0171..running lean. So i cleaned the MAF sensor, and its running better, and the cel went away. But it still kind of rough. The only thing I figure is a vacuum leak, but can't find anything. The truck only has 75,000 miles, any help would be appreciated. Thanks.