Isuzu Trooper EGR Valve Replace/Remove

I Have A 2002 Isuzu Trooper And We Changed The Catalic Converts And Egr Valve But It Still Won't Drive Over 20 Mph What Is Wrong And We...

I Have A 2001 Trooper And The Check Engine Light Was On. Upon Having It Checked I Was Told That It Was An Egr Problem. My Question Is......

Code: 0401 Says That I Have Insufficient Airflow In The Egr Area. I Have Had This Code For Almost A Year. I Have Replaced The Egr Valve...

I Have A 0401 Code And I Have Already Replaced The Egr Valve, Ran Cleaner Through The System And About Everything Else. I Have Been Told To...