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Q: How can I get rid of "check engine light" when it gives me a code 66. on 1990 Oldsmobile Cutlass Supreme

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I know this is due to the A/C having low pressure but I have removed the A/C altogether due to the cost of replacing it. The engine now surges when I put it into any gear from park. Also, it will continue to accelerate after I have removed my foot form pedal. Any help would be greatly appreciated, riding the bus when you have a car sucks.
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