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LC-1 Very Lean Readings

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Old Jul 7, 2010 | 08:48 AM
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fuzzychi's Avatar
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LC-1 Very Lean Readings

I just finished installing the LC-1 and did some logging with Evoscan for the AFRs using the LC-1 output. I noticed very lean AFRs and was wondering if it's possible that the sensor is not reading properly. It does read in the range of 14.5 - 16 at idle so I'm guessing it's on the right spot for that. However I'm getting around 13 - 14 during spool up from around 2500 - 4000RPM for load up to 100%.

Would any wiring issues cause it to read incorrectly even if it is reading correctly at idle?
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Old Jul 7, 2010 | 09:13 AM
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Is this with the injection kit running? Turn off the injection kit, lower the boost, possibly get a new tune.
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Old Jul 7, 2010 | 09:17 AM
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From: south jersey
any knock?

I would suspect the tune. By "100% load" do you mean the throttle position?
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Old Jul 7, 2010 | 09:20 AM
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-No longer running alcohol injection

-Knock counts were very low only a knock sum of 2 at 4000RPM

Could the wideband be reporting different numbers with higher RPMs but be fine with reporting values at idle?
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