Quote:
Originally Posted by nsfmike240
Your exhaust back pressure may be too much, you can check that with a gauge but if you do not have one then you can just take your o2 sensor out or diss connect down pipe to check, once you do that then drive it around the block, if it is better then you have too much excessive back pressure
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the chances of this being the reason, are like the chances of winning the lottery in a state that doesn't sell tickets.