FORD RANGER EGR VALVE

I Have A 99 Ford Ranger And The Check Engine Light Came On The Codes Are 1409 And 1451 We Replaced The O2 Sensords And The Egr Vacuum...

I'm Replacing The Egr Valve On My Truck. Do I Have To Replace The Tube As Well? Or Can I Just Clean The Inside Of It? If So, What Would...