Hesitation on 2002 Audi A6

my audi has 140k new fuel pump, filter, induction cleaned no codes but continues to hesitate and check engine light comes on. Any one have an idea.

by in Cibolo, TX on June 15, 2010
1 answer
ANSWER by , June 16, 2010
What codes are being stored in the module when the check engine light comes on?