Engine Performance problem
2000 Chevy Impala 6 cyl Front Wheel Drive Automatic 120000 miles
I have spent sometime reserching your site (and others) trying to solve the problem....
My car doesn't accelerate/has no power especialy when I'm on HWY. Check engine light showed P0404 first time and after reseting P0403 code)
Don't go any faster when I push the gas pedal down. I have also noticed drop in fuel economy...
Did a tune-up....no changes
Suspect Fuel Pump, O2 sensors or Catalytic Converter....
have the same problem?
Friday, February 22nd, 2008 AT 6:19 PM