Reducing the at least one injector on time may comprise reducing {HEAD ~ the at least one injector} on {TAIL ~ time} if the fuel limit value exceeds the threshold fuel value for at least the predetermined time period only if the intake manifold pressure sensor has not failed and the ambient pressure sensor has not failed 
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Reducing the at least one injector on time may comprise reducing { HEAD ~ the at least one injector } on { TAIL ~ time } if the fuel limit value exceeds the threshold fuel value for at least the predetermined time period only if the intake manifold pressure sensor has not failed and the ambient pressure sensor has not failed
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL 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