Fuel Injection Technical Library » Two Digit Codes 33-58

Two Digit Codes 33-58

#	KOEO	CM	KOER	Code Definition
33		X	X	EGR valve opening not detected.
34	X		X	PFE or EVP circuit above the closed limit of 0.67 volts.
34		X		PFE or EVP circuit has intermittently failed above the closed limit of 0.67 volts.
35	X		X	PFE or EVP circuit above the maximum limit of 4.81 volts.
35		X		PFE or EVP circuit has intermittently failed above the maximum limit of 4.81 volts.
39		X		AXOD converter bypass clutch not applying properly.
40			X	Cylinder #4 Failed Cylinder Balance Test.
41		X		HEGO sensor circuit indicates system lean (right side).
41			X	No HEGO switching detected always lean (right side).
42		X		HEGO sensor circuit indicates system rich (right side).
42			X	No HEGO switching detected always rich (right side).
43		X		HEGO lean at Full Throttle.
44		X	X	Thermactor Air Injection system inoperative (Right side).
45		X		DIS coil pack 3 circuit failure or coil 1 primary circuit failure.
45			X	Thermactor secondary air is misdirected.
46		X		DIS coil pack 1 circuit failure or coil 2 primary circuit failure.
46			X	Thermactor air not bypassed during self test.
47	X			4WD switch closed.
47			X	Measured air flow too low at base idle.
48		X		Loss of IDM, left side.
48			X	Measured air flow too high at base idle.
49		X		SPOUT signal default to 10° BTDC.
49		X		1 – 2 shift error (E4OD).
50			X	Cylinder #5 Failed Cylinder Balance Test.
51	X	X		ECT sensor signal is greater than the Self-Test maximum of 4.6 volts.
52	X	X	X	Power steering pressure switch always open or closed.
53	X			TPS circuit above maximum 4.5 volts.
53		X		TPS circuit has intermittently failed above maximum 4.5 volts.
54	X	X		ACT sensor signal is greater than the Self-Test maximum of 4.6 volts.
55			X	Keyed power input to processor is open.
56	X	X		MAF circuit above maximum voltage of 4.5volts.
56	X	X		TOT sensor output is greater than Self-Test maximum value of 4.8 volts.
57	X			Octane adjust service pin in use / circuit grounded.
57		X		AXOD Neutral pressure switch circuit failed open.
58	X	X		VAT indicated -40°F / circuit open.

KOEO = Key On Engine Off, CM = Continues Memory, KOER = Key On Engine Running

Codes 10-32
Codes 59-74
Codes 75-99
Three Digit Codes