In your linked reference, nobody brought up that it could be a vacuum problem (green vacuum hose on top of the EGR could be cracked, split, or removed, etc..) though it would likely cause a lean condition code for the downstreams as well. I have seen it cause a 0401 without anything else, though.



Ray

'99 CSVT - Silver #222/276 In a constant state of blow-off euphoria.
Originally posted by Kremitthefrog:
I like to wear dresses and use binoculars to watch grandmas across the street.