Power Cut/Hesitation when increasing throttle

lundi 9 mars 2015

I have visually checked my coils, spark plugs have been replaced. Only this left to inspect is my cat. My car starts cold/hot perfectly fine. Under normal driving it is fine but as soon as i would increase the throttle to accelerate "Harder" it basically just hesitates and makes a very dull stalling noise. Hard to explain. at first i thought i got bad gas maybe so i burned off a tank and put in some seafoam. Well that was a tank ago and i'm stumped. I think it could be my cat. but i'm skeptical because its not rpm based. its based off throttle increase. Any idea guys?

Car info:

-2004 Rx8

-Coils are 20-30k old but inspected and no burn marks were visible. (I assumed that means they are functioning)

-Plugs are brand new

-Mileage is 87k.

-Fuel pump assembly + filter are two months old





-Thanks everyone




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