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Re: obd 11 monitors on ois system
Posted to Emissions Forum on 5/18/2015 2 Replies

Kelly,

If the memory has not been cleared the PCM enters the Exponentially Weighted Moving Averaging (EWMA). This occurs after first two trips following a memory clear. You actually explained it in your post. The PCM goes into this averaging mode be be sure ... Login to read more.

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