2011 GMC Sierra P0606 keep coming

2011 GMC SIERRA
100 MILES • 6.2L • V8 • 4WD • AUTOMATIC
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SAEED.ALMEQ
  • MEMBER
  • 17 POSTS
I have p0606 code + engine reduce power on light throttle from time to time ?
I pulled freeze frame data but don't know how to diagnose it
Jun 13, 2014 at 11:07 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
clean battery terminal ends and check battery for condition including load test. autoparts can do this. make sure pcm has agood ground if that is ok then have a pro diagnose it as it may be a pcm problem
Jun 14, 2014 at 5:09 AM
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