Thread: No power under load

I have a 2001 gt - car starts and runs fine when cold.
Once it heats ups it idles fine but no power on acceleration, could barely get it up 30 kph
Pulled a PO141 code and changed the O2 sensor but that didn't help.
Fuel pressue is fine.
Bad Cat or what?
Thanks in advance from a new guy here on the forums.
Fred

change plugs and wires...could also be a dis coil pack but start with the plugs

Originally Posted by DOUGLASMELTER

change plugs and wires...could also be a dis coil pack but start with the plugs

Already did that and still no change.
Thanks for the quick reply

wondering if this pertains to Canada

GM will replace Catalytic converter - Car Forums and Automotive Chat

yea just went through the same..bad cat

Thanks for the input guys.
It was the Cat after all.
I managed to locate a low mileage Cat off a 2004 GP and it fit with no problems. The 2001 even seems to have a bit more get up and go then it did before (bonus) plus the newer Cat should help out even better for my Etest in the spring
Thanks again guys
Fred