chevy malibu no power

[kute_2]

hi i have a 2002 chevy malibu the car is bucking and has no power the rpm go up but no power i thought it might me a bad spark plug got a tune up no change so i replaced the coil no change the check engine light is on tell me multible firing issues i need help on where to look so im not dumping money into guess would be great if any one knows where to look help

 

[zora]

What code is the computer throwing?

 

[Chuzz]

How many miles do you have on it? It could be a clogged catalytic converter. But do what Zora suggested and have the codes read first.