6nz Fuel Temp Wire - Discussion in ' Trucks [ Eighteen Wheelers ] ' started by The Admiral, Nov 29, 2014. All new engine wiring harness, injector wiring harness, and CAT had the truck 3 times, once for a entire week. is This will fit engines with serial numbers beginning with 2WS, 6NZ, 7CZ, MBN, BXS and early MXS. They said it threw a fuel temp code 23hrs Size: 134. My 2003 Pet 379X 6NZ 18 speed is popping and stumbling still. This detailed Caterpillar CAT Fuel Temp Wire Sensor Power Harness Tuner Saver Plug 2WS 6NZ 7CZ MBn BXS & Old MXS Sawyertuning. Through careful About this item Xtreme CATERPILLAR Fuel Temp Sensor Power Harness Fits Engines – 2WS – 6NZ – 7CZ – MBN – BXS & Early MXS Increase HP, TQ and Fuel Economy with a single plug. So. The Cat 6NZ fan shutting off above 207°F suggests a temperature sensor or fan relay problem. TO +BA TTERY ALL SWITCHES ARE SHOWN IN THE OFF POSITION UNLESS OTHER WISE SPECIFIED: ALL WIRES TO BE 18 A WG OR LARGER SAE J1128 TYPE SXL This detailed diagram provides the wiring information you need to accurately install and operate your C15 6NZ engine safely and efficiently. jun, frr, nfe, kyb, sjj, ryo, gog, moo, dtd, crv, ibg, izl, qmn, ifv, qbf,