My engine light has been on and reduced engine power has shown. got the codes printed.. replaced the throttle body unite and the sensor card that connect it but it still will not accelerate and go above 40mph. Please Help Me!!!!!

 

What are the codes?
Need input.

 

Yes, need the codes.

And what does "replaced the throttle body unite and the sensor card that connect it" mean?

 

I think it means the throttle body unit was replaced and the MAF sensor. But that’s just my guess.
Please post the codes, so we can help you, we’ll also need year, engine size, any resent repairs.