CHECK ENGINE LIGHT ON INTERMEDIATLY WHEN ON CAR RUNS ROUGH WHEN LIGHT GOES OUT WILL GO BACK TO NORMAL CODE FROM ECM INDICATES HIGH VOLTAGE FROM EGR POSITION SENSOR
In order to fix yours problem with EGR system, you must remove and clean inside the EGR valve. Refit all in reverse order. Therefore you can erase ECM memory from faults. After these operations you can run on higway for few miles for engine warm up and exhaust system cleaning!
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In order to fix yours problem with EGR system, you must remove and clean inside the EGR valve. Refit all in reverse order. Therefore you can erase ECM memory from faults. After these operations you can run on higway for few miles for engine warm up and exhaust system cleaning!