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Discussion Starter · #1 ·
I have a 98 TJ with a 05 4.0L with 5 speed , someone before me replaced 2.5L auto with 4.0L 5 speed and said it ran fine for a few months, had to pcm reprogrammed and now it runs for a few seconds and cuts off giving codes like p0339 and p0349 p0633 p0344 not sure what to do next, thanks mike
 
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