I finally recharged the A/C system on the '91 EGT, but now there seems to be an issue. When the A/C is on, the car's power surges up and down, not just an overall drop because the engine is working harder. In about 1 second cycles, the power noticably surges up and down (1 sec up, 1 sec down, 1 sec up, etc). Would this be a computer problem? With the A/C off, the power is steady so it is kind of baffling me. Any thoughts? :?