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(Thread Starter) | Not Ranked : 0 score attached are the 3 datalogs with the kr readings. Also the ambient temperature was 95 degrees fahrenheit on the day that I logged them. About 5k miles ago I did not have these KR readings at WOT. And sometimes when I do another pull right after these readings show up my KR is fine all across the range. should I be worried? Is my speed 3 okay? And should I get a compression check? |
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| Neutral : +1 score AFRs in the 9s is way too rich. You should be seeing 11-12 at WOT. If you haven't changed your spark plugs yet, it sounds like it's about that time. Make sure they're gapped correctly. Also, it wouldn't hurt to clean your MAF sensor. |
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(Thread Starter) | Not Ranked : 0 score
Also I read somewhere that the stock mapping runs rich to be safe on the engine is that true? | |
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| Not Ranked : 0 score 11s are rich. 9s are black smoke out the exhaust and backfires rich. Sent from my iPhone using Tapatalk |
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| Hot air+boost=knock. Also, knock retard + boost = low AFRs. The 9:1 AFRs are a reflection of the fact that you've got knock, and the car is attempting to compensate by adding fuel and pulling a boatload of timing.
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