Fault Codes/Rehlko/516284 17Rehlko516284 17UnclassifiedGeneralWhat This Code MeansEngine protection power reductionPossible Causes•Boost pressure too lowRelated Rehlko Fault Codes516600 3516600 4516281 15516663 063516663 3162516666 161516667 3140AA-227600Browse all Rehlko fault codes→ASK RUDY ABOUT THIS FAULTGet a diagnosis walkthrough for 516284 17 on your specific Rehlko unit — cited to the OEM manual, not a forum guess.TRY IT FREE