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I have a 3.4 V6 with a K&N intake and a Jett Stage 1 PCM. Unfourtunately this is where my problem lies. After i put the chip in and then on major roadways while holding a steady speed that the engine starts to hiccup and my RPM drop then jump right back. I dont lose any speed and it never hiccups by more than 500 rpms. Anybody got any ideas?

 
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what speed does it happen? any certain speed? May want to contact jett and see if it's a software glitch

 
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it only happen occasionally and usually around 55-70 mph

 
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i was thinking about getting these same mods done to my car too. not anymore though!! how many miles are on your car?