b'%XW\x03LI\x03IRU\x03H[DPSOH\x0f\x03WKH\x03SXPS\x03WXUQHG\x03RQ\x03DQG\x03WKH\x03VLJQDO\x03EDUHO\\\x03PRYHG\x03IURP\x03ELDV\x0f\x03WKH\x03\'0(\x03ZRXOG\x03MXGJH\x03 WKH\x03 V\\VWHP\x03 DV\x03 \x055XQQLQJ\x03 EXW\x03 OHDNLQJ\x0f\x05\x03LQGLFDWLQJ\x03VXSSO\\\x03KRVHV\x03OHDNLQJ\x11\x03,Q\x03WKLV\x03FDVH\x0f\x03WKH\x03SXPS\x03VKXWV\x03GRZQ\x03DW\x03WKUHH\x03VHFRQGV\x03IRU\x03SURWHFWLRQ\x11\x03$QG\x03QDOO\\\x0f\x03LI\x03WKH\x03V\\VWHP\x03LV\x03DFWXDOO\\\x03FORJJHG\x0f\x03WKH\x03YDOYHV\x03DUH\x03VWXFN\x03FORVHG\x03RU\x03LQRSHUDWLYH\x03DQG\x03QHYHU\x03RSHQ\x0f\x03WKH\x03\'0(\x03LQWHUSUHWV\x03WKLV\x03DV\x03\x055XQQLQJ\x03DQG\x03FORJJHG\x05\x03 DQG\x03 WKH\x03 SXPS\x03 VKXWV\x03 GRZQ\x03 DW\x03 WKUHH\x03seconds for protection. :KDW\x03 ZDV\x03 WKH\x03 QDO\x03 DQVZHU\x03 ZLWK\x03 WKLV\x03 FDU"\x03 6LQFH\x03 PRVW\x03 RI\x03 WKH\x03 SDUWV\x03 ZHUH\x03 QHZ\x0f\x03 DOO\x03 WKDW\x03 ZDV\x03 OHIW\x03 ZDV\x03 WR\x03 FOHDQ\x03 WKH\x03 FORJJHG\x03 SRUWV\x03 LQ\x03 WKH\x03F\\OLQGHU\x03KHDGV\x0f\x03UHDVVHPEOH\x03WKH\x03YHKLFOH\x0f\x03FOHDU\x03WKH\x03codes and road test. %HDXWLIXO\x11\x03\'RQH\x11\x031R\x03IDXOWV\x0f\x03UXQV\x03JUHDW\x036+,3\x03,7\x04Summary:H\x03PXVW\x03UHPHPEHU\x03WKDW\x032(0\x03WHVW\x03SURFHGXUHV\x03DQG\x03\'7&\x03RZ\x03FKDUWV\x03DUH\x03ZULWWHQ\x03DW\x03WKH\x03IDFWRU\\\x03LQ\x03QHDU\x03SHUIHFW\x03HQJLQHHULQJ\x03FRQGLWLRQV\x11\x03$V\x03VXFK\x0f\x03)LJXUH\x03\x1b\x1d\x031RWLFH\x03IRU\x03WKH\x03UVW\x03WLPH\x0f\x03WKH\x03SXPS\x03VWD\\V\x03UXQQLQJ\x03IRU\x03WKH\x03GXUDWLRQ\x03RI\x03LWV\x03LQWHQGHG\x03F\\FOH\x11\x03 SXEOLVKHG\x03 \'7&\x03 FKDUWV\x03 UHHFW\x03 D\x03 UHYHUVH\x10RUGHU\x03Here in this scope shot there are 10 full seconds of run time shown. The pump ran for 40 seconds.WHVWLQJ\x03RU\x03,I\x107KHQ\x03ORJLFDO\x03GLDJQRVWLF\x03SDWK\x03EDVHG\x03The OBD II monitor ran and passed. Mystery solved. RQ\x03WKH\x03SK\\VLFDO\x03FRPSRQHQWV\x0f\x03WKH\x03YHKLFOH\x03EXLOG\x0f\x03and the circuits involved. WKH\x03\x1895()\x03OLQH\x11\x037KLV\x03ELDV\x03YROWDJH\x03LV\x03WKHQ\x03IHG\x03WKURXJK\x03WKH\x03VLOLFRQH\x03UHVLVWLYH\x03 :KDW\x03 WKH\x03 2(0\x03 FDQQRW\x03 SODQ\x03 IRU\x03 QRU\x03 SUHGLFW\x03 LQ\x03 WKHVH\x03 GLDJQRVWLF\x03 FKDUWV\x03VHQVRU\x03ZDIHU\x03DQG\x03WKH\x03VLJQDO\x03LV\x03RXWSXW\x03WR\x03DQ\x03RS\x03DPSOLHU\x03ZKRVH\x03PDWK\x03LV\x03VHW\x03 DUH\x03 WKH\x03 EHKDYLRUV\x03 RI\x03 IDXOWV\x03 FDXVHG\x03 E\\\x03 RXWVLGH\x03 HQYLURQPHQWDO\x0f\x03 FKHPLFDO\x0f\x03WR\x03SURFHVV\x03WKH\x03VLJQDO\x03DERYH\x03DQG\x03EHORZ\x03WKH\x03ELDV\x03SRLQW\x03EDVHG\x03RQ\x03SUHVVXUH\x03ULVH\x03 PHFKDQLFDO\x0f\x03 RU\x03 HOHFWULFDO\x03 IRUFHV\x0f\x03 VXFK\x03 DV\x03 YLEUDWLRQV\x0f\x03 KLJK\x10UHVLVWDQFH\x03or drop.SUREOHPV\x0f\x03LQWHUPLWWHQW\x03KDUGZDUH\x03RU\x03ZLULQJ\x03LVVXHV\x0f\x03WHPSHUDWXUH\x0f\x03PRLVWXUH\x0f\x031RWH\x1d\x03%HFDXVH\x03WKH\x03RXWSXW\x03RI\x03WKH\x03RS\x03DPS\x03LV\x03DOZD\\V\x03WKH\x03GLHUHQFH\x03EHWZHHQ\x03 and corrosion issues.WKH\x03YROWDJH\x03RQ\x03LWV\x03LQSXW\x03SLQV\x0f\x03WKLV\x03VHQVRU\x03FDQ\x03UHDG\x03WKH\x03GURSV\x03RU\x03LQFUHDVHV\x03 7KHUHIRUH\x0f\x03 ZH\x03 PXVW\x03 DOZD\\V\x03 UHPHPEHU\x03 WKDW\x03 XVLQJ\x03 RQO\\\x03 WKH\x03 WHVWLQJ\x03LQ\x03SUHVVXUH\x03RQ\x03WKH\x03LQSXW\x03IURP\x03WKH\x03VHQVRU\x0f\x03DV\x03FRPSDUHG\x03WR\x03WKH\x03\x15\x11\x18\x03YROW\x03ELDV\x03 VWHSV\x03 SXEOLVKHG\x03 E\\\x03 2(0V\x03 FDQ\x03 RIWHQ\x03 OHDG\x03 XV\x03 WR\x03 WHVW\x03 RXUVHOYHV\x03 LQ\x03 FLUFOHV\x03voltage applied to the other op amp input. \x0bLQWHUPLWWHQWV\x0c\x03DQG\x03LV\x03RIWHQ\x03QRW\x03GHSHQGDEOH\x03DV\x03WKH\x03VROH\x03PHWKRG\x03RI\x03SURGXFWLYH\x036R\x0f\x03ZKHQ\x03WKH\x03FDU\x03VWDUWV\x03DQG\x03WKH\x03$\x11,\x115\x11\x03SXPS\x03UXQV\x0f\x03WKH\x03RZ\x03FRQWURO\x03YDOYHV\x03 DQG\x03DFFXUDWH\x03IDXOW\x03QGLQJ\x11\x03DUH\x03RSHQHG\x0f\x03DQG\x03WKH\x03VHQVRU\x03LV\x03H[SHFWHG\x03WR\x03VHH\x03D\x03GURS\x03LQ\x03YROWDJH\x03DV\x03FRPSDUHG\x03 7KLV\x03 LV\x03 HVSHFLDOO\\\x03 WUXH\x03 ZKHQ\x03 WKDW\x03 RXWVLGH\x03 IRUFH\x03 LV\x03 ZRUNLQJ\x03 DJDLQVW\x03 \\RXU\x03WR\x03NH\\\x10RQ\x03ELDV\x11\x03:KHQ\x03WHVWHG\x0f\x03WKH\x03$\x11,\x115\x11\x03SXPS\x03VWDUWHG\x03DQG\x03UDQ\x03IRU\x03WKH\x03IXOO\x03GLDJQRVLV\x03DQG\x03WKH\x03V\\VWHPV\x03H[SHFWHG\x03EHKDYLRU\x03GXULQJ\x03WHVWLQJ\x11\x03\x17\x13\x03VHFRQGV\x0f\x03FRPSOHWHG\x03DQG\x03SDVVHG\x03LWV\x032%\'\x03,,\x03PRQLWRU\x03DQG\x0f\x03OR\x03DQG\x03EHKROG\x0f\x03LW\x03ZDV\x03[HG\x0f\x03DQG\x03WKH\x03P\\VWHU\\\x03ZDV\x03VROYHG\x11 7KH\x03VKDPH\x03RI\x03KDYLQJ\x03WR\x03UHYHUVH\x10HQJLQHHU\x03WKLV\x033DQDPHUDV\x03FRQWURO\x03V\\VWHP\x03WR\x03JHW\x03LW\x03RXW\x03RI\x03WKH\x03ED\\\x0f\x03LV\x03WKDW\x03LI\x03WKH\x032(0\x03KDG\x03MXVW\x03SURYLGHG\x03WKLV\x03VLPSOH\x03FLUFXLW\x037KH\x03P\\VWHU\\\x03RI\x03ZK\\\x03WKH\x03SXPS\x03ZRXOGQW\x03UXQ\x03PRUH\x03WKDQ\x03WKUHH\x03VHFRQGV\x03ZDV\x03 LQIR\x03DORQJ\x03ZLWK\x03D\x03YROWDJH\x10WR\x10SUHVVXUH\x03FRQYHUVLRQ\x03FKDUW\x03IRU\x03WKH\x03VHQVRU\x03DQG\x03D\x03VLPSO\\\x03WKDW\x03GXULQJ\x03DOO\x03RI\x03WKH\x03WHVWLQJ\x0f\x03DQDO\\VLV\x0f\x03ULJJLQJ\x03RI\x03KRVHV\x03DQG\x03FLUFXLWV\x03 VWDWHPHQW\x03RI\x03RSHUDWLRQDO\x03WKHRU\\\x03LQ\x03WKHLU\x03\'7&\x03LQIRUPDWLRQ\x0f\x03WKH\x03WHFK\x03ZRXOG\x03WR\x03QG\x03WKH\x03DQVZHU\x0f\x03WKH\x03VHQVRU\x03ZDV\x03QHYHU\x03SURYLGHG\x03D\x03FRQGLWLRQ\x03WKDW\x03ZRXOG\x03 OLNHO\\\x03KDYH\x03VROYHG\x03WKLV\x03FDUV\x03LVVXH\x03LQ\x03D\x03PDWWHU\x03RI\x03KRXUV\x0f\x03QRW\x03FXPXODWLYH\x03GD\\V\x03DOORZ\x03WKH\x03\'0(V\x03ORJLF\x03WR\x03UXQ\x03WKH\x03SXPS\x11\x03 RI\x03ORVW\x03WLPH\x03RYHU\x03WZR\x03PRQWKV\x03WKDW\x03KH\x03FRXOGQW\x03FKDUJH\x03WKH\x03FXVWRPHU\x03IRU\x11\x03,Q\x03WKH\x03QDO\x03DQDO\\VLV\x0f\x03KHUHV\x03WKH\x03ORRVH\x03WKHRU\\\x03RI\x03KRZ\x03WKH\x03\'0(\x03LQWHUSUHWV\x03DQG\x03 ,WV\x03 DOO\x03 DERXW\x03 WKH\x03 DYDLODELOLW\\\x03 DQG\x03 TXDOLW\\\x03 RI\x03 WKH\x03 SXEOLVKHG\x03 LQIR\x03 DQG\x03 WKH\x03XVHV\x03WKLV\x03VHQVRUV\x03VHWXS\x11 diagnostic strategy.$W\x03.H\\\x032Q\x0f\x03WKH\x03VLJQDO\x03OLQH\x03VHHV\x03D\x03\x15\x11\x18\x03YROW\x03ELDV\x03\x0bDWPRVSKHULF\x0c\x11\x03:KHQ\x03WKH\x03 /LPLWHG\x03DQG\x03YDJXH\x03VHUYLFH\x03DQG\x03WHVWLQJ\x03LQIRUPDWLRQ\x03HTXDOV\x03GLDJQRVWLF\x03GUDPD\x0f\x03YHKLFOH\x03LV\x03VWDUWHG\x0f\x03WKH\x03SXPS\x03FRPHV\x03RQ\x03DQG\x03SUHVVXUH\x03VKRXOG\x03GURS\x03\x0bVHQVRU\x03 H[FHVV\x03H[SHQVH\x03DQG\x03FXVWRPHU\x03SDLQ\x0f\x03DV\x03ZDV\x03OHDUQHG\x03ZKLOH\x03VROYLQJ\x03WKLV\x03FDVH\x03LQGLFDWHV\x03YROWDJH\x03EHORZ\x03DERXW\x03\x14\x11\x1c\x03YROWV\x0c\x0f\x03ZKLFK\x03LQGLFDWHV\x03WR\x03WKH\x03\'0(\x03WKDW\x03 RQ\x03WKH\x033DQDPHUD\x11\x03%XW\x03LWV\x03[HG\x03DQG\x03ZH\x03KDYH\x03D\x03KDSS\\\x03FXVWRPHU\x11\x038QWLO\x03QH[W\x03WKH\x03SXPS\x03LV\x03\x055XQQLQJ\x03DQG\x03RZLQJ\x11\x05\x03,Q\x03WKLV\x03FDVH\x0f\x03WKH\x03SXPS\x03VWD\\V\x03UXQQLQJ\x11 WLPH\x0f\x03UHPHPEHU\x0f\x03\\RXUH\x03MXVW\x03JXHVVLQJ\x03ZLWKRXW\x03SK\\VLFDO\x03WHVWLQJ\x11\x03|11 8'