Air Conditioning problem
1992 Buick Lesabre 6 cyl Front Wheel Drive Automatic
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Driving down the interstate on a 90 degree day and I felt a loss of power and observed a Service engine light. I had the a/c running; so I turned it off. Instantly, the check engine light extinguished and there was an increase in power. Compressor problem, belt problem....thoughts?

Thank you in advance for any help!

Cross these two terminals as shown, then turn the key on. Count the flashes, a 22 will flash as 2 flashes then a short pause, then 2 flashes, if more than one code is stored, the pause will be longer. The codes will display three times and end with 12. Write them down and post here. This connector is right under the middle of the dash...