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2009 Kia Rio cuts off suddenly


Kia Rio LE 2009 - Car starts and runs for a little while, then cuts out without warning. No fault codes present. Carried out fuel and spark tests. Fuel not getting through fuel pump on disconnection. Sprayed with starter aid spray and started without fuel pump connected. Remedy: Replaced Fuel pump. Ran car and stopped without warning again. Replaced Crank Position Sensor, tested and stopped again without warning. No codes present. Not sure what to do next.