Hello everybody new to forum. I have a 2002 gs300 and recently my car loses all power when i try to turn it on. When I put the key into the ignition the steeringwheel comes down and when I shift the key the dash turns on but when i turn it to turn the car on the car loses all power. After everything turns off I dissconnect the battery and reconnect it and the car turn on like nothing happened.

Also recently the check engine light went on and had codes p0171 and p0174 I am not sure if that has anything to do with it. Any help would be appreciated

 

Check your airbox...