Got a weird one here.. 05 maxima SE. Wife was driving and called saying the car has no power. Does nothing when throttle is pressed. Turned off A/C and it went away. I checked codes, there are none. I took it for a ride and anytime I turn the A/C on it craps the bed. Turn it off and all is good. The throttle does almost nothing. At full throttle it goes to about 1500 RPM but just about no forward movement at all. I'm guessing limp mode but it doesnt get past about 10 MPH. Any thoughts? We're in AZ so can't just run without A/C.. HELP!!

 

Looks like this was happening because my month old battery was very low. Had it checked and they gave me a new one. Running fine right now but I don't know if the alternator is charging. But that's for a different post.
Thanks