{HEAD ~ The method} may comprise estimating an operating condition of the turbocharger, determining a maximum value of an operating parameter as a function of the estimated operating condition of the turbocharger, measuring {TAIL ~ a value} of the operating parameter, determining an error value as a function of the maximum value of the first operating parameter and the measured value of the operating parameter, and limiting fuel supplied to the engine based on the error value 
comprise measuring
{ HEAD ~ The method } may comprise estimating an operating condition of the turbocharger , determining a maximum value of an operating parameter as a function of the estimated operating condition of the turbocharger , measuring { TAIL ~ a value } of the operating parameter , determining an error value as a function of the maximum value of the first operating parameter and the measured value of the operating parameter , and limiting fuel supplied to the engine based on the error value
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH