My '92 Grand Prix (3.1 L) keeps stalling after i fixed a fuel line leak. Gas is getting to the injectors as I check at the valve near the injector and there is pressure and gas. I drove it for a few kilometers without problems. It stalled on me and would not start again. Had it towed to a repair shop but the next morning the mechanic says it started fine. He put a reader on it while it idled for an hour and it ran fine. Then today, he took it for a ride and it stalled on him except he was able to get it to restart.
He's ruled out the fuel system as the source of the problem and thinks it's electrical... maybe the computer.
Anyone have any suggestions, it would be greatly appreciated. Thanks.