GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

3 years of random misfire

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Old Oct 5, 2016 | 10:45 AM
  #31  
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Originally Posted by 03sierraslt
Have you ever had a crank relearn procedure performed ?
Yes many times
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Old Oct 5, 2016 | 06:56 PM
  #32  
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From: Warr Acres, OK
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In all this I don't see any mention of using a scanner on it. Show me a datalog of it misfiring. Show me a datalog displaying current misfires and misfire history for all cylinders. Did you smoke test the exhaust. I saw a mention of cutouts. How close to the O2s are they installed? Does the truck have a tune?
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Old Oct 5, 2016 | 10:50 PM
  #33  
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Originally Posted by 2xLS1
In all this I don't see any mention of using a scanner on it. Show me a datalog of it misfiring. Show me a datalog displaying current misfires and misfire history for all cylinders. Did you smoke test the exhaust. I saw a mention of cutouts. How close to the O2s are they installed? Does the truck have a tune?
Cut outs near the muffler
Do you have an hptuners
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