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P0300 Misfire 2002 2500HD 6.0 Please Help

Model: 2002 2500HD 6.0 Fault Code: P0300 Posted: 2009-12-12 16:43

I have been trying to solve my misfire problem and could use some help. I set the sel off every time i get up between 60-75mph no other times. I have attached my scan during an event for reference. Data View Vehicle: 2002 Chevrolet Silverado 2500 Pickup 6.0L V8 LQ4 PID Name Value Units Min Avg Max GM.ENGINE.12SOL_OPEN_GND 1-2 Solenoid Open/Short to Ground No - - - GM.ENGINE.12SOL_SHORT_V 1-2 Solenoid Short to Volts No - - - GM.ENGINE.23SOL_OPEN_GND 2-3 Solenoid Open/Short to Ground No - - - GM.ENGINE.23SOL_SHORT_V 2-3 Solenoid Short to Volts No - - - GM.ENGINE.24X_CRNK 24X Crank Sensor 2445 0 1462 3091 GM.ENGINE.4WD 4WD Signal Disabled - - - GM.ENGINE.4WD_HIGH_LIT 4WD High Indicator Light On - - - GM.ENGINE.4WD_LO 4WD Low Signal Disabled - - - GM.ENGINE.AC_CPRESS A/C Compressor Cycling Switch Closed - - - GM.ENGINE.AC_FEEDB A/C Clutch Feedback Signal Relay Off - - - GM.ENGINE.AC_REQ A/C Request Signal No - - - GM.ENGINE.AC_REQ_D A/C Request No - - - GM.ENGINE.AC_RLY_CMD A/C Relay Command Off - - - GM.ENGINE.ACP A/C High Side Pressure -90.44 kPa -103.08 -90.87 -90.44 GM.ENGINE.ACP2_SW A/C Secondary High Pressure Switch Open - - - GM.ENGINE.ACPS A/C High Side Pressure Sensor 0.020 Volts 0.000 0.019 0.020 GM.ENGINE.AIRP_CMD Air Pump Relay Command Off - - - GM.ENGINE.APP_AVG APP Average 0 0 0 0 GM.ENGINE.BARO Barometer 100.00 kPa 97.78 99.66 100.74 GM.ENGINE.BARO_V Barometric Pressure Sensor 4.765 Volts 4.647 4.747 4.804 GM.ENGINE.CC_ACT_B Cruise Control Active No - - - GM.ENGINE.CC_BRK Cruise Release Brake Pedal Switch Released - - - GM.ENGINE.CC_IHB Cruise Inhibit Signal Command Off - - - GM.ENGINE.CC_RA Cruise Resume/Accel Off - - - GM.ENGINE.CC_REQ Cruise Requested No - - - GM.ENGINE.CC_SC Cruise Set/Coast Off - - - GM.ENGINE.CC_SW Cruise Switch Off - - - GM.ENGINE.CCD1H Cruise Control Disengage 1 History PCM Error - - - GM.ENGINE.CCD2H Cruise Control Disengage 2 History PCM Error - - - GM.ENGINE.CCD3H Cruise Control Disengage 3 History PCM Error - - - GM.ENGINE.CCD4H Cruise Control Disengage 4 History PCM Error - - - GM.ENGINE.CCD5H Cruise Control Disengage 5 History PCM Error - - - GM.ENGINE.CCD6H Cruise Control Disengage 6 History PCM Error - - - GM.ENGINE.CCD7H Cruise Control Disengage 7 History PCM Error - - - GM.ENGINE.CCD8H Cruise Control Disengage 8 History PCM Error - - - GM.ENGINE.CFAN_CMD Coolant Fan Relay Command Off - - - GM.ENGINE.CKP_STAT CKP Sensor Status Drive 4 - - - GM.ENGINE.CMP_HI_LO CMP - High to Low 2789 0 7100 17234 GM.ENGINE.CMP_LO_HI CMP - Low to High 2789 0 7100 17234 GM.ENGINE.COLD_START Cold Startup Yes - - - GM.ENGINE.COOL_LO Low Coolant Level No - - - GM.ENGINE.CP_SW Clutch Pedal Switch Released - - - GM.ENGINE.DECEL_FOFF Decel Fuel Cutoff Active - - - GM.ENGINE.DECEL_FOFF_B Decel Fuel Cutoff Inactive - - - GM.ENGINE.DECEL_FOFF_C Decel Fuel Cutoff Inactive - - - GM.ENGINE.DTC_SET DTC Set This Ignition Yes - - - GM.ENGINE.ECT1ST Start Up ECT 92.00 °C 2.00 15.51 92.00 GM.ENGINE.EGR_CVPP EGR Closed Valve Pintle Position 0.824 Volts 0.706 0.761 0.824 GM.ENGINE.EGR_POS EGR Position Sensor 31.8 % 0.0 27.2 99.6 GM.ENGINE.EGRDES Desired EGR Position 2.196 Volts 0.706 1.679 4.196 GM.ENGINE.EGRDES_B Desired EGR Position 44.3 % 0.0 27.1 99.6 GM.ENGINE.EGRPOS EGR Position Sensor 1.745 Volts 0.706 1.699 4.627 GM.ENGINE.ENG_TRQ Engine Torque 0.0 N-m 0.0 0.0 0.0 GM.ENGINE.EOL_LOW Low Oil Lamp Off - - - GM.ENGINE.EOL_SW Engine Oil Level Switch Ok - - - GM.ENGINE.EOP_V Engine Oil Pressure 0.020 Volts 0.000 0.019 0.020 GM.ENGINE.ETCPP_B Electronic Throttle Control Pedal Position 0.000 % 0.000 0.000 0.000 GM.ENGINE.EVAP_RSLT EVAP Test Result No Result - - - GM.ENGINE.EVAP_STAT EVAP Test State Wait for Purge GM.ENGINE.EVAP_VCMD EVAP Vent Solenoid Command Venting - - - GM.ENGINE.EVAPDC EVAP Purge Solenoid Command 100.0 % 0.0 52.5 100.0 GM.ENGINE.FL Fuel Level 50.6 % 47.8 50.5 51.4 GM.ENGINE.FL_V Fuel Level Sensor 2.529 Volts 2.392 2.527 2.569 GM.ENGINE.FT_CAP Fuel Tank Rated Capacity 98.0 Liters 98.0 98.0 98.0 GM.ENGINE.FT_DIAG_INH Fuel Trim Diag. Inhibit Enable - - - GM.ENGINE.FT_REM_B Fuel Tank Remaining 0.0 % 0.0 0.0 0.0 GM.ENGINE.FTC Fuel Trim Cell 7 0 12 22 GM.ENGINE.FTLRN Fuel Trim Learn Disabled - - - GM.ENGINE.FTLRN_B Fuel Trim Learn Enabled - - - GM.ENGINE.FTP Fuel Tank Pressure 1.85 kPa 1.85 1.85 1.87 GM.ENGINE.FTP_B Fuel Tank Pressure Sensor -14.0 mmHg -14.0 -14.0 -14.0 GM.ENGINE.FTP_V Fuel Tank Pressure Sensor 0.020 Volts 0.000 0.020 0.020 GM.ENGINE.FUEL_LVL_V Fuel Level Sensor Right Tank 4.961 Volts 4.941 4.958 4.961 GM.ENGINE.FUEL_REM Fuel Tank Level Remaining 100.5 Liters 93.9 100.9 101.1 GM.ENGINE.FUELTRM Fuel Trim Learn Enabled - - - GM.ENGINE.GEN_LTERM GEN L-Terminal Signal Command On - - - GM.ENGINE.GENF Generator F-Terminal 51.0 % 0.0 32.0 90.6 GM.ENGINE.HO2S11 HO2 Bank 1 Sensor 1 772.6 mV 39.1 503.5 894.1 GM.ENGINE.HO2S12 HO2 Bank 1 Sensor 2 781.3 mV 34.7 593.4 1041.7 GM.ENGINE.HO2S21 HO2 Bank 2 Sensor 1 711.8 mV 52.1 501.3 963.5 GM.ENGINE.HO2S22 HO2 Bank 2 Sensor 2 616.3 mV 34.7 560.9 1072.0 GM.ENGINE.HVAC_RECIR HVAC in Recirculation Mode Closed - - - GM.ENGINE.IAC IAC Position 0 Counts 0 0 1 GM.ENGINE.IACDES Desired IAC Position 99 Counts 25 75 155 GM.ENGINE.IACDES_FLO Desired IAC Airflow 838.75 g/s 272.70 570.30 1082.81 GM.ENGINE.IC_CYL1 IC Circuit Cylinder 1 Ok - - - GM.ENGINE.IC_CYL2 IC Circuit Cylinder 2 Ok - - - GM.ENGINE.IC_CYL3 IC Circuit Cylinder 3 Ok - - - GM.ENGINE.IC_CYL4 IC Circuit Cylinder 4 Ok - - - GM.ENGINE.IC_CYL5 IC Circuit Cylinder 5 Ok - - - GM.ENGINE.IC_CYL6 IC Circuit Cylinder 6 Ok - - - GM.ENGINE.IC_CYL7 IC Circuit Cylinder 7 Ok - - - GM.ENGINE.IC_CYL8 IC Circuit Cylinder 8 Ok - - - GM.ENGINE.IDLEDES Desired Idle Speed 575 rpm 575 620 1063 GM.ENGINE.IGN_V Ignition Voltage 13.900 Volts 0.000 13.827 14.400 GM.ENGINE.INJPWM_B1 Injector PWM Bank 1 Average 5.4 ms 0.0 6.3 16.9 GM.ENGINE.INJPWM_B2 Injector PWM Bank 2 Average 6.1 ms 0.0 6.3 17.4 GM.ENGINE.KR Knock r**ard 0.0 ° 0.0 0.0 0.0 GM.ENGINE.KS Knock Signal Present No - - - GM.ENGINE.LOOP_STAT Loop Status Closed - - - GM.ENGINE.LOOP_STAT_B Loop Status Closed - - - GM.ENGINE.LTFT1 Long Term Fuel Trim Average Bank 1 3.9 % 0.0 2.8 3.9 GM.ENGINE.LTFT2 Long Term Fuel Trim Average Bank 2 4.7 % 0.0 3.2 4.7 GM.ENGINE.MAF_HZ MAF Sensor 5371.1 Hz 0.0 4389.4 7934.6 GM.ENGINE.MAP Manifold Absolute Pressure 31.00 kPa 22.14 48.49 101.11 GM.ENGINE.MAP_V Manifold Absolute Pressure Sensor 1.098 Volts 0.627 2.027 4.824 GM.ENGINE.MF_CYCLE Cycles of Misfire Data 22460 49 12782 25809 GM.ENGINE.MF_CYL1C Misfire Current Cylinder 1 31 0 5 70 GM.ENGINE.MF_CYL1H Misfire History Cylinder 1 40799 38200 39108 42397 GM.ENGINE.MF_CYL2C Misfire Current Cylinder 2 0 0 0 0 GM.ENGINE.MF_CYL2H Misfire History Cylinder 2 2 2 2 2 GM.ENGINE.MF_CYL3C Misfire Current Cylinder 3 0 0 0 0 GM.ENGINE.MF_CYL3H Misfire History Cylinder 3 0 0 0 0 GM.ENGINE.MF_CYL4C Misfire Current Cylinder 4 0 0 0 2 GM.ENGINE.MF_CYL4H Misfire History Cylinder 4 1 1 1 1 GM.ENGINE.MF_CYL5C Misfire Current Cylinder 5 0 0 1 11 GM.ENGINE.MF_CYL5H Misfire History Cylinder 5 6611 6277 6397 6842 GM.ENGINE.MF_CYL6C Misfire Current Cylinder 6 13 0 5 86 GM.ENGINE.MF_CYL6H Misfire History Cylinder 6 51662 48611 49656 53631 GM.ENGINE.MF_CYL7C Misfire Current Cylinder 7 0 0 0 2 GM.ENGINE.MF_CYL7H Misfire History Cylinder 7 0 0 0 0 GM.ENGINE.MF_CYL8C Misfire Current Cylinder 8 0 0 1 12 GM.ENGINE.MF_CYL8H Misfire History Cylinder 8 5266 4882 5026 5496 GM.ENGINE.MF_CYL_P Misfiring Cylinder (Primary) 1 0 4 15 GM.ENGINE.MF_CYL_S Misfiring Cylinder (Secondary) 6 0 4 15 GM.ENGINE.MF_CYLIDX Cylinder Mode Misfire Index 0 Counts 0 0 1 GM.ENGINE.MF_FAIL Misfire Test Failures Since 1st Fail 774 724 742 807 GM.ENGINE.MF_PASS Misfire Test Passes Since 1st Fail 1837 Count 1727 1786 1920 GM.ENGINE.MF_SPECIAL Total Misfire Per Test Special 62 0 25 194 GM.ENGINE.MF_TOTAL Total Misfire 62 0 25 194 GM.ENGINE.MIL MIL Command On - - - GM.ENGINE.ODOCLEAR Mileage Since DTC Cleared 755.0 km 735.0 745.4 775.0 GM.ENGINE.OIL_LIFE Engine Oil Life Remaining 0.0 % 0.0 0.0 0.0 GM.ENGINE.OIL_LIFE_B Engine Oil Life Remaining 0.5 % 0.5 0.5 0.5 GM.ENGINE.OIL_LIFE_C Engine Oil Life Remaining 0.0 % 0.0 0.0 0.0 GM.ENGINE.PCM_RESET PCM Reset No - - - GM.ENGINE.PED_ROT Percent Pedal Rotation 0.0 % 0.0 0.0 0.0 GM.ENGINE.PWR_RCH Power Enrichment Inactive - - - GM.ENGINE.RDC_EPWR Reduced Engine Power Inactive - - - GM.ENGINE.RUN_TIME Engine Run Time 245 Seconds 0 545 1317 GM.ENGINE.SR Speed Ratio 204 151 694 2047 GM.ENGINE.STFT1 Short Term Fuel Trim Average Bank 1 -1.6 % -4.7 -1.0 3.1 GM.ENGINE.STFT2 Short Term Fuel Trim Average Bank 2 -0.8 % -4.7 -0.2 3.1 GM.ENGINE.TCC_BRK TCC Brake Pedal Switch Released - - - GM.ENGINE.TCC_CMD TCC Enable Solenoid Command Off - - - GM.ENGINE.TCC_ENB TCC Enable Solenoid Command Off - - - GM.ENGINE.TCC_PWM_CMD TCC PWM Solenoid Command Off - - - GM.ENGINE.TCCDC_OPEN_SHORT TCC Duty Cycle Open/Short to Ground No - - - GM.ENGINE.TCCDC_SHORT_V TCC Duty Cycle Short to Voltage No - - - GM.ENGINE.TCCSLIP TCC Slip Speed 150 rpm -317 241 1185 GM.ENGINE.TCRL Traction Control Status Inactive - - - GM.ENGINE.TORQ_DEL Delivered Torque (Eng. to Trans Input) 138.2 Nm 1.4 231.3 1733.5 GM.ENGINE.TORQ_DES Desired Torque (Brake to PCM) 474.5 Nm 474.5 474.5 474.5 GM.ENGINE.TP_V TP Sensor 0.824 Volts 0.412 0.827 3.020 GM.ENGINE.TPS Throttle Position Sensor 5.9 ° -3.0 6.0 53.4 GM.ENGINE.TPS_PERC Percent Desired Throttle Position 0.6 % 0.6 0.6 0.6 GM.ENGINE.TR_SW Transmission Switch Drive - - - GM.ENGINE.VTD_FDIS VTD Fuel Disable Inactive - - - GM.ENGINE.VTD_IGNDSB VTD Fuel Disable Until Ignition Off No - - - GM.ENGINE.VTD_LRNTMR VTD Auto Learn Timer Inactive - - - GM.ENGINE.VTD_PVCM_FAIL PCM / VCM in VTD Fail Enable No - - - GM.ENGINE.WUEMPASS Warm-Ups without Emission Faults 0 0 3 3 GM.ENGINE.WUPASS Warm-Ups without Non-Emission Faults 16 15 15 16 GM.TRANS.12SOL_OPEN_SHORT_B 1-2 Solenoid Open Short to Ground No - - - GM.TRANS.12SOL_SHORT_V_B 1-2 Solenoid Short to Volts No - - - GM.TRANS.1870SLIP 1870 Slip Counter 0 0 0 0 GM.TRANS.23SOL_OPEN_GND_B 2-3 Solenoid Open Short to Ground No - - - GM.TRANS.23SOL_SHORT_V_C 2-3 Solenoid Short to Volts No - - - GM.TRANS.4WD_B 4WD Disabled - - - GM.TRANS.4WD_LO_B 4WD Low Disabled - - - GM.TRANS.AC_CLUTCH A/C Clutch Off - - - GM.TRANS.ADAPT_SHFT_B Adaptable Shift No - - - GM.TRANS.CRUISE Cruise Disabled - - - GM.TRANS.GEAR Commanded Gear 4 1 3 4 GM.TRANS.GEAR_RAT Gear Ratio 1 0 2 4 GM.TRANS.HOT_C Transmission Hot Mode Off - - - GM.TRANS.IGN_V Ignition Voltage 13.9 Volts 0.0 13.8 14.4 GM.TRANS.ISS Transmission Input Shaft Speed 3143 rpm 0 1521 3356 GM.TRANS.OSS Transmission Output Shaft Speed 3145 rpm 0 1363 3357 GM.TRANS.PCSOL_AC Pressure Control Solenoid Actual Current 0.9 amps 0.0 0.9 1.1 GM.TRANS.PCSOL_DC Pressure Control Solenoid Duty Cycle 50.4 % 4.7 44.6 57.8 GM.TRANS.PCSOL_RC Pressure Control Solenoid Reference Current 0.9 amps 0.0 0.9 1.1 GM.TRANS.RUN_TIME Engine Run Time 245 Seconds 0 545 1317 GM.TRANS.SHIFT12 1-2 Shift Time 0.3 Seconds 0.0 0.4 1.7 GM.TRANS.SHIFT23 2-3 Shift Time 0.4 Seconds 0.0 0.3 0.4 GM.TRANS.SHIFT34 3-4 Shift Time 1.6 Seconds 0.0 0.4 1.6 GM.TRANS.SHIFTERR12 1-2 Shift Error 0.1 Seconds 0.0 1.9 6.3 GM.TRANS.SHIFTERR23 2-3 Shift Error 6.4 Seconds 0.0 0.4 6.4 GM.TRANS.SHIFTERR34 3-4 Shift Error 5.0 Seconds 0.0 4.0 6.4 GM.TRANS.SHIFTLAST Last Shift Time 1.6 Seconds 0.0 0.5 1.7 GM.TRANS.TAP_C Current TAP Cell 6 0 3 7 GM.TRANS.TAP_MEM Current TAP Memory -16 -16 -16 -1 GM.TRANS.TCC_BRK Torque Convertor Clutch Brake Switch Closed - - - GM.TRANS.TCC_BRKSW TCC Brake Switch Closed - - - GM.TRANS.TCC_DC Torque Convertor Clutch Duty Cycle 0.0 % 0.0 1.9 99.2 GM.TRANS.TCC_DC_OPEN_SHORT Torque Convertor Clutch Duty Cycle Open Short to Ground No - - - GM.TRANS.TCC_DC_SHORT_V Torque Convertor Clutch Duty Cycle Short to Volts No - - - GM.TRANS.TCC_ENAB Torque Convertor Clutch Enable No - - - GM.TRANS.TCCMOD TCC Mode 0 0 0 4 GM.TRANS.TCCMOD_B Torque Convertor Clutch Mode 3 0 1 4 GM.TRANS.TFP_SWA TFP Switch A Off - - - GM.TRANS.TFT Transmission Fluid Temperature 58.0 °C 3.0 33.6 63.0 GM.TRANS.TFT_V Transmission Fuild Temperature Sensor 3.3 Volts 1.0 2.7 3.6 GM.TRANS.TOW Tow / Haul Mode Inactive - - - GM.TRANS.TP_ANG Throttle Position Angle 12.5 % 0.0 11.5 72.9 GM.TRANS.TPS_V_TR Throttle Position Sensor Voltage 0.8 Volts 0.4 0.8 3.0 GM.TRANS.TR_A PRND A Input On - - - GM.TRANS.TR_A_IN PRND A Input Off - - - GM.TRANS.TR_B PRND B Input On - - - GM.TRANS.TR_B_IN PRND B Input On - - - GM.TRANS.TR_C_IN PRND C Input On - - - GM.TRANS.TR_P_IN PRND P Input Off - - - GM.TRANS.TR_POS PRND Position Drive 4 - - - GM.TRANS.TR_SW_C Transmission Switch Drive4 - - - SAE.ACRF_SUP A/C system refrigerant monitoring support Not Supported - - - SAE.AIR_SUP Secondary air system monitoring support Not Supported - - - SAE.BP_RDY Boost pressure system monitoring status Complete - - - SAE.BP_SUP Boost pressure system monitoring supported Not Supported - - - SAE.CAT_SUP Catalyst monitoring support Not Supported - - - SAE.CCM_RDY Comprehensive component monitoring status Complete - - - SAE.CCM_SUP Comprehensive component monitoring support Supported - - - SAE.CIM_SUP Compression ignition monitoring supported Not Supported - - - SAE.DTC_CNT Number of emission-related DTCs stored in this ECU 1 1 1 1 SAE.ECT Engine Coolant Temperature 96 °C 3 74 98 SAE.EGR_SUP EGR system monitoring support Not Supported - - - SAE.EGR_VVT_RDY EGR and/or VVT system monitoring status Complete - - - SAE.EGR_VVT_SUP EGR and/or VVT system monitoring supported Not Supported - - - SAE.EGS_RDY Exhaust gas sensor monitoring status Complete - - - SAE.EGS_SUP Exhaust gas sensor monitoring supported Supported - - - SAE.EVAP_SUP Evaporative system monitoring support Not Supported - - - SAE.FUEL_RDY Fuel system monitoring status Complete - - - SAE.FUEL_SUP Fuel system monitoring support Supported - - - SAE.FUELSYS1 Fuel system 1 status CL - - - SAE.FUELSYS2 Fuel system 2 status CL - - - SAE.HCAT_SUP Heated catalyst monitoring support Not Supported - - - SAE.HCCAT_RDY NMHC catalyst monitoring status Complete - - - SAE.HCCAT_SUP NMHC catalyst monitoring supported Not Supported - - - SAE.HTR_SUP Oxygen sensor heater monitoring support Not Supported - - - SAE.IAT Intake Air Temperature 21 °C 3 7 23 SAE.LOAD_PCT Calculated Load Value 25.9 % 0.0 10.0 42.0 SAE.LONGFT1 Long Term Fuel Trim - Bank 1 8.6 % -1.6 5.0 11.7 SAE.LONGFT2 Long Term Fuel Trim - Bank 2 7.0 % -1.6 5.0 12.5 SAE.LONGFT3 Long Term Fuel Trim - Bank 3 75.8 % -93.0 -13.4 93.0 SAE.LONGFT4 Long Term Fuel Trim - Bank 4 -59.4 % -90.6 3.3 96.1 SAE.MAF Air Flow Rate from Mass Air Flow Sensor 20.32 g/s 0.00 27.46 114.38 SAE.MAP Intake Manifold Absolute Pressure 29 kPa 22 49 101 SAE.MIL Malfunction Indicator Lamp (MIL) Status Off - - - SAE.MIS_RDY Misfire monitoring status Complete - - - SAE.MIS_SUP Misfire monitoring support Supported - - - SAE.NCAT_RDY NOx aftertreatment monitoring status Complete - - - SAE.NCAT_SUP NOx aftertreatment monitoring supported Not Supported - - - SAE.O2S11.O2SV Oxygen Sensor Voltage Bank 1 - Sensor 1 0.810 V 0.005 0.469 0.870 SAE.O2S11.SHRTFT Oxygen Sensor Short Term Fuel Trim Bank 1 - Sensor 1 -0.8 % -7.0 -0.8 7.8 SAE.O2S12.O2SV Oxygen Sensor Voltage Bank 1 - Sensor 2 0.745 V 0.000 0.581 1.050 SAE.O2S21.O2SV Oxygen Sensor Voltage Bank 2 - Sensor 1 0.685 V 0.050 0.488 0.945 SAE.O2S21.SHRTFT Oxygen Sensor Short Term Fuel Trim Bank 2 - Sensor 1 -0.8 % -12.5 -0.7 7.8 SAE.O2S22.O2SV Oxygen Sensor Voltage Bank 2 - Sensor 2 0.620 V 0.000 0.542 1.055 SAE.O2S_RDY Oxygen sensor monitoring status Complete - - - SAE.O2S_SUP Oxygen sensor monitoring support Supported - - - SAE.O2SLOC11 Oxygen Sensor Location Bank 1 - Sensor 1 Present - - - SAE.O2SLOC12 Oxygen Sensor Location Bank 1 - Sensor 2 Present - - - SAE.O2SLOC13 Oxygen Sensor Location Bank 1 - Sensor 3 Not Present - - - SAE.O2SLOC14 Oxygen Sensor Location Bank 1 - Sensor 4 Not Present - - - SAE.O2SLOC21 Oxygen Sensor Location Bank 2 - Sensor 1 Present - - - SAE.O2SLOC22 Oxygen Sensor Location Bank 2 - Sensor 2 Present - - - SAE.O2SLOC23 Oxygen Sensor Location Bank 2 - Sensor 3 Not Present - - - SAE.O2SLOC24 Oxygen Sensor Location Bank 2 - Sensor 4 Not Present - - - SAE.OBDSUP On Board Diagnostic System Type OBD-I - - - SAE.PM_RDY PM filter monitoring status Complete - - - SAE.PM_SUP PM filter monitoring supported Not Supported - - - SAE.PTO_STAT Power Take Off (PTO) Status Off - - - SAE.RPM Engine RPM 2444 rpm 0 1420 2936 SAE.SHRTFT1 Short Term Fuel Trim - Bank 1 1.6 % -10.9 -0.9 7.0 SAE.SHRTFT2 Short Term Fuel Trim - Bank 2 1.6 % -10.2 -0.7 6.3 SAE.SHRTFT3 Short Term Fuel Trim - Bank 3 -31.3 % -91.4 2.7 91.4 SAE.SHRTFT4 Short Term Fuel Trim - Bank 4 43.0 % -94.5 -3.5 94.5 SAE.SPARKADV Ignition Timing Advance for #1 Cylinder 44.5 ° 0.0 27.9 51.5 SAE.TP Absolute Throttle Position 0.0 % 0.0 11.2 65.5 SAE.VSS Vehicle Speed Sensor 113 km/h 0 46 117 SCRIPT.BOOST Boost Pressure 0.29 BAR 0.22 0.49 1.01 SCRIPT.FUEL_ECONOMY Instantaneous Fuel Economy 16.3 km/l 0.0 5.6 31.2 SCRIPT.FUEL_FR Fuel Flow Rate 6.940 l/hr 0.000 9.377 39.064

Related fault codes
P0300
Comments (7)
Anonymous 2009-12-13 17:11

Looks like cylinders 1, 5, 6, 8 are misfiring the most! what did you use to pull that data? what have you done to try and rectify the symptons?

Anonymous 2009-12-13 17:43

Thanks for the reply. I have done the basics: Plugs, wires, fuel filter, air filter, Gas treatment. I use Scan XL with GM software to pull the data. I'm not totally up to speed with what all the data means but #1 & #6 misfires are the worst. It also looks like my Long Term Fuel Trim is whacked. Any Help would be appreciated.

Anonymous 2009-12-14 21:18

I'd check for correct fuel pressure and flow and check for restricted catalytic converters. new fuel filter doesn't rule out a fuel issue

Anonymous 2009-12-16 18:25

Thanks for the reply. I have recently put a high flow Magnaflow Dual Exhaust on the Truck and updated the Air filter with K&N. How do I check the Cats for restrictions? Doesn't the Scan show the fuel pressure and flow via fuel trim and flow? Please advise.

Anonymous 2009-12-16 20:58

No I don't use fuel trims as a pass or fail for a fuel pump issue! As well the scanner doesn't read fuel pressure or flow so it won't be a PID on the screen. which is why it still needs to be testted. As well converters can be checked with a vaccum gauge or a pressure gauge installed into the exhaust system in place of the 02 sensor. Some also test them with scopes hooked to a pressure transducer! And as for your fuel trim observation which PID are you concerned with there? the ones that say bank 3 and bank 4? HAs all this started since the K&N filter install? Im not a fan of them, feel they do more damage to the MAF then any good they do

Anonymous 2009-12-17 05:35

Jeff thanks for the response. I will get the converters checked as well as the fuel flow and pressure. I am concerned about bank 3 and bank 4 on both short and long fuel trim. I will also take a scan without the k&n. I had the problem before I installed but it is worth a try.

Anonymous 2009-12-17 06:13

I wouldn't worry at all about the info stated under bank 3 and bank 4 because there is no 3 or 4 on your truck. It's a V8, 2 banks only. I think your scanner info in that regard is junk. Alot of the cheaper PC based systems out there do a less then stellar job of transcribing and classifying the Mode 6 data and putting it into a useable format. Your other fuel trim readings look pretty good so I wouldn't trust fuel trim data at the moment! Unfortunately removing the K&N and making a run without it doesn't have much effect now because the oil from the filter has contaminated the MAF so a clean dry filter back in front of the MAF doesn't fix the MAF.