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I have a 99 accord V6 109000 miles, no mods except an AEM dryflow intake. The engine light popped on awhile ago and gave me the p170 and p171 codes. I cant find a vacuum leak, or maybe I just **** at finding them, I replaced the MAP sensor, cleaned out the IAC valve, and the transmission was just rebuilt. (I had the engine problem before the transmission one). The car idles hard, and shakes, not smooth at all. the throttle response is slow, like pushing down, and down, and then the car lurches forward. On the freeway,, and even driving normally, it will just stop accelerating slowly, and I have to push down on the pedal to get any response. If anyone has had this problem and has some advice that would be awesome. I am about to take it to a shop but I am not strapped with cash and im tired of replacing parts with no change in the performance.