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‘19 zr8000 P1639 code

4K views 2 replies 2 participants last post by  drollin81 
#1 ·
Power valve cables broke on my last trip. Replaced them both. Now I have P1639 code on the dash and it acts like it’s running on 1 cylinder and won’t rev past 7000 rpm. Compression is 120psi in both cylinders. Not sure what to do next besides take it to the dealer
 
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