Fault Codes/Power Solutions International/8902Power Solutions International8902UnclassifiedGeneralWhat This Code MeansMalfunction Indicator Light (MIL) ON; Adaptive learn disabledPossible Causes•UEGO heater supply voltage greater than 32V when the heater is switched on•Internal fault within the ECMRelated Power Solutions International Fault Codes8904891489018916698789203468:1DTC -16443032DTC 2 343031DTC 2 99Browse all Power Solutions International fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 8902 on your specific Power Solutions International unit — cited to the OEM manual, not a forum guess.TRY IT FREE