J-21867 is used for DOD diagnosis. It is installed in place of the oil pressure sensor located in the LOMA unit. This adapter will allow isolation of the LOMA from main line oil pressure. Two oil pressure gauges will be used, one at the oil filter and one at the LOMA. A comparison of the two pressures will confirm LOMA oil pressure blow off function and/or identify excessive LOMA oil leaks.
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