Another possibility, happened on my 96 and my MIL's 98, is an EGR valve that is carboned up open.

Not sure if they fixed that issue by '01. Easy way to clean it is to dunk the mechanical part ONLY in MEK to soak and it'll clean out the carbon. DO NOT put the diagphram in the MEK or you will be buying a new one ($80+ last time I checked).

Steve


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.