There's also an EGR position sensor on the back of the EGR - made my engine die at cold start and idle very rough when warm. Had same symptons another time when the EGR was sticking and wouldn't open. Last, take off your idle air speed motor/valve and clean the carbon out of the valve at the seat. Don't use a metal tool and try to scrape it, soak it with i.e. carb spray, then use a tiny brush / an air compressor, etc. Also make sure that the IAS motor is functioning.
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