Have 1994 Chevrolet Caprice 5.7ltr (P vin). Failed emissions test due to idle miss. Car accellerates fine, little roughness when maintaining constant speeds. Have replaced injector/fuel rail o rings, fuel pressure regulator, plug wires, plugs, tuneup module, coil, decayed hoses, EGR solenoid. What else can it be? BuddyB Baltimore MD buddybeasley@verizon. Net.
have the same problem?
Friday, November 12th, 2010 AT 5:56 PM