LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Pontiac >> 1995 >> Firebird Formula, 2D Convertible, Standard >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Engine Performance DTCS (3.4L)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Performance DTCS (3.4L)

ENGINE PERFORMANCE DTCS (3.4L)

OEM Code Description
13 OPEN OXYGEN SENSOR CIRCUIT
14 COOLANT TEMP SENS SGNL VLTGE LOW (HI TEMP INDICATED)
15 COOLANT TEMP SENSOR SIGNAL VOLTAGE LOW
16 SYSTEM VOLTAGE LOW
17 CAMSHAFT SENSOR ERROR
21 THROTTLE POSITION SENSOR SIGNAL VOLTAGE HIGH
22 THROTTLE POSITION SENSOR SIGNAL VOLTAGE LOW
23 IAT SENSOR SIGNAL VOLTAGE HIGH (LOW TEMP INDICATED)
24 VEHICLE SPEED SENSOR
25 IAT SENSOR SIGNAL VOLTAGE LOW (HIGH TEMP INDICATED)
28 TRANS. RANGE PRESSURE SWITCH
33 MAP SENSOR SIGNAL VOLTAGE HIGH
34 MAP SENSOR SIGNAL VOLTAGE LOW
35 IAC IDLE SPEED ERROR
36 24X SIGNAL ERROR
37 TCC BRAKE SWITCH ERROR
41 CYLINDER SELECT ERROR
42 IC CIRCUIT OPEN/GROUNDED
43 KNOCK SENSOR ERROR
44 LEAN EXHAUST INDICATION
45 RICH EXHAUST INDICATION
46 PASS-KEY CIRCUIT
51 FAULTY PROM/MEM-CAL
52 FAULTY CAL-PAK
53 SYSTEM VOLTAGE HIGH
54 FUEL PUMP VOLTAGE LOW
55 PCM ERROR
58 TRANS TEMPERATURE SENSOR HIGH TEMPERATURE
59 TRANS. TEMPERATURE SENSOR LOW TEMPERATURE
61 A/C SYSTEM PERFORMANCE
63 RIGHT OXYGEN SENSOR OPEN
64 RIGHT OXYGEN SENSOR LEAN
65 RIGHT OXYGEN SENSOR RICH
66 LOW A/C CHARGE
67 A/C PRESSURE SENSOR
68 A/C RELAY CIRCUIT SHORTED
69 A/C COMPRESSOR RELAY
70 HIGH A/C PRESSURE
71 LOW A/C TEMPERATURE
72 VEHICLE SPEED SENSOR LOSS
73 HIGH A/C TEMPERATURE
75 EGR SOLENOID ERROR
76 EGR SOLENOID ERROR
77 EGR SOLENOID ERROR
79 TRANSMISSION FLUID OVERTEMP
80 TRANSMISSION COMPONENT SLIPPING
82 3X SIGNAL ERROR
85 PROM ERROR & CODE 87, EEPROM ERROR
86 ANALOG/DIGITAL ERROR
90 TCC SOLENOID CIRCUIT
93 PRESSURE CONTROL SOLENOID
96 TRANSMISSION VOLTAGE LOW