2001 Chevrolet Metro Q&A

2001 Chevrolet Metro Question: car loosing speed going up hill

my car is loosing speed going uphill, and the check engine light is on. -
Answer 1
did you get a code number for the failed system?? Roy -
Answer 2
how long has the check engine light been on ? what is the mileage, year, make, model, engine size? -