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Possible your catalytic converter has become clogged. Happens especially if you had coil failure. If that's true, continuing to drive will slowly destroy your engine, so take the cat down and inspect it for clogging or breaking up.

Hmm. Something else to try is the 20-time brake pedal stomp. Car in ON but not running, press the brake 20 times within 8 seconds. If dine correctly, the oil pressure gauge will sweep right. Resets stored sensor profile data and forces car to relearn. Has helped some.

Cleaning the ESS might also be required.