EGR percentage versus EVP sensor voltage chart and data table

EVP Output Graph

Voltage is measured from the Br/LG wire (EVP) to Gy/R (SigRet) with the key in RUN and the sensor connected normally. Check Br/Wh (VRef) to Gy/R for 5VDC. Use a handheld vacuum pump (e.g. MityVac) to operate the EGR valve.



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Owner caption June 2009 · Photo 2522 of 6546