by Treefrog , Today at 11:33 PM
I own a mazda rx8 2005 shinka with 89,000 miles. Car will not get past 5,ooo RPM i have to let my foot off the gas to get it to shift and when it shifts it shifts hard i have lack of horse power. At a stop light and then press the gas to go and it seem like it's going to stall but ends up going. Please any ideas of what might be wrong please let me know. Thank you

 

How old are the coils? plugs? plug wires?

I assume you have an automatic?

 

What he said.

Also, when was the last time the transmission was serviced (fluids), again, assuming you have an automatic..

 

My friends 05 auto had the same problem. His cat was plugged and had to be replaced.
Just another idea.....

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