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TBSS timing problems

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Old Feb 20, 2014 | 06:04 PM
  #11  
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May not be your issue, but my stock burst knock settings were pulling timing at WOT with the turbo, so I zeroed them out and it fixed it. It was not pulling much timing though, 0.5-2 deg if I recall.

Make sure you're not in your ECT, IAT, EGR, etc. spark modifiers either.
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Old Feb 20, 2014 | 06:55 PM
  #12  
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Just looked at a couple more things, your airflow is jacked up. Your airflow readings are bouncing up and down quite a bit and your B1S1 randomly drops to double digits. You are getting some bullshit airflow readings somewhere.
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Old Feb 20, 2014 | 07:05 PM
  #13  
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Originally Posted by 03sierraslt
Just looked at a couple more things, your airflow is jacked up. Your airflow readings are bouncing up and down quite a bit and your B1S1 randomly drops to double digits. You are getting some bullshit airflow readings somewhere.
You're onto something here.
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Old Feb 20, 2014 | 07:14 PM
  #14  
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In .12 sec your MAF lb/min spikes from 1.1 when coasting to 54.x then back to 11.x lb/min once you floored it. All the while RPM stayed the same, this all happened as your TB was opening. If RPM has yet to change there is NO way your MAF reading is going to change that fast. Also, while commanding a 12.6 afr and in open loop your B1S1 voltage is dropping to 70's randomly for no reason while your b2s1 is at 890mv. When the 02 sensor does this your INJ pulse does not change FYI.
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Old Feb 21, 2014 | 08:15 AM
  #15  
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I'm going to take a couple more scans tonight with a new config file. I'll also poke around to make sure that everything is plugged in and properly... funny that it only rears its head WOT if it is a matter of a sensor not plugged in properly.
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