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Thread: 16197427 Stand alone 4L80E controller questions?

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  1. #7
    Super Moderator dave w's Avatar
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    I'm wondering which plug your transmission has? The 93 4L80E might have the early style connector.

    Link to pic of early style connector: https://www.utterpower.com/gm_4l80e_..._connector.htm

    gearhead-efi link to $OE (4L80E) information: http://www.gearhead-efi.com/Fuel-Inj...Information-OE (.bin, .xdf, .adx, .xdl files, and schematics).

    Link to Bluecat Transmission Tuning software (free): https://forum.hptuners.com/showthrea...Table-Software

    The 16197427 will need the following inputs to control a 4L80E, RPM. TPS, VSS, ISS, Ignition, Battery +, Battery -.

    The Memcal will need the engine error codes turned off:
    16197427 Malfunction Error Codes
    These are general error codes for GM in 1995. All may not apply to 16197427 PCM

    11 Malfunction indicator lamp circuit voltage was wrong for 26 seconds.
    13 Oxygen sensor voltage stays between 0.35 and 0.55 volts for 60 seconds. Engine was at normal operating temperature and had been running for at least 2 minutes after start with a throttle angle above 5%.
    14 Coolant temperature sensor signal indicates a temperature of over 284° F.
    15 Coolant temperature sensor signal indicates a temperature colder than -40° F.
    16 A low resolution pulse was not detected by ECM within 720 high resolution timing pulses.
    18 Injector driver circuit voltage to PCM was wrong for 4 seconds.
    21 TPS voltage was above 2.5 volts for 3 seconds when the engine was running, or when the TPS was above 4.8 volts at any time.
    22 TPS voltage was under 0.23 volts when the engine was running.
    23 Inlet air temperature sensor signal showed an air temperature below -31° F for 60 seconds after the engine has been running for 4 minutes.
    24 Vehicle speed was 0 MPH when engine speed was between 900 and 3000 RPM and throttle position angle was less than 2% for 5 seconds.
    25 Inlet air temperature sensor signal showed an air temperature over 302° F for 12 seconds after the engine has been running for 4 minutes.
    26 ECM detected the wrong potential voltage at the #1 quad-driver module circuit for 20 seconds.
    27 ECM detected the wrong potential voltage at the #2 quad-driver module circuit for 3 seconds.
    28 ECM detected the wrong potential voltage at the #3 quad-driver module circuit for 3 seconds.
    29 Secondary air injection pump circuit voltage was wrong for 26 seconds.
    32 EGR open command did not change the fuel mixture when the command was given during off idle operation. EGR opening should cause the mixture to be slightly richer because of the low oxygen content of the exhaust gas.
    33 MAP sensor signal voltage was too high (low vacuum) for 1 second when throttle opening was under 20% and engine speed was above 1250 RPM.
    34 MAP sensor signal voltage was too low (high vacuum) when engine speed was under 700 RPM, or when TPS was greater than 20% with an engine speed above 700 RPM.
    36 ECM detected less than 40 high resolution timing pulses between each low resolution pulse for 5 consecutive cycles.
    41 EST circuit voltage was above 4.6 volts when engine speed was under 1500 RPM.
    42 PCM did not detect any EST signal within 84 crankshaft revolutions.
    43 One or both of the knock sensors were either open or grounded for 5 seconds.
    44 Left oxygen sensor voltage was under 0.2 volts for 50 seconds of closed loop operation.
    45 Left oxygen sensor voltage was over 0.7 volts for 50 seconds when the throttle angle was above 4% during closed loop operation.
    47 Knock sensor signal was not present.
    48 There was no MAF signal when engine was on.
    50 PCM detected an ignition voltage of less than 8.0 volts.
    51 PROM error.
    52 Engine oil temperature was below -31° F after engine had been running for 30 minutes.
    53 ECM detected a battery voltage above 17.1 volts.
    55 ECM detected a lean oxygen sensor voltage for 8 seconds during the power enrichment modes of operation.
    62 Engine oil temperature sensor indicated an oil temperature above 284° F after engine had been running for 30 minutes.
    63 Right oxygen sensor was open showing a steady voltage between 0.35 and 0.55 volts for 60 seconds after the engine had been running for at least 2 minutes with a throttle angle above 5%.
    64 Right oxygen sensor voltage was below 0.2 volts for 50 seconds of closed loop operation.
    65 Right oxygen sensor voltage was above 0.7 volts for 50 seconds of closed loop operation when the throttle angle was above 4%.
    66 A/C pressure sensor circuit was either open or shorted showing a voltage below 0.12 volts or above 4.86 volts for 10 seconds.
    67 ECM did not detect an A/C system pressure change of more than 9 psi when A/C clutch was engaged.
    68 ECM detects voltage on the A/C status line for more than 20 seconds after ECM has disengaged the A/C relay.
    69 ECM did not detect any voltage on A/C status line for 20 seconds after ECM had commanded A/C ON.
    70 A/C clutch relay circuit showed incorrect potential voltage at PCM for 26 seconds.
    72 Transmission output speed changed more than 1000 RPM for 2 seconds when vehicle was in gear, or transmission output speed changed more than 2048 RPM when vehicle was in park or neutral.
    73 Pressure control solenoid return amperage was more than 0.16 amp different than the commanded amperage for 1 second.
    74 Traction control system active signal input was 0 volts for more than 2 seconds when vehicle was in park or neutral.
    75 Ignition voltage was less than set value for 4 seconds when engine speed was above 1000 RPM.
    77 Cooling fan relay #1 control potential voltage at PCM was incorrect for 26 seconds.
    78 Cooling fan relay #2 and #3 control potential voltage at PCM was incorrect for 26 seconds.
    79 Transmission fluid temperature signal indicated a temperature higher than 295° F for 30 minutes, or higher than 306° F at any time.
    81 Transmission 2-3 shift solenoid voltage stayed high for 2 seconds after commanded ON by PCM, or the voltage stayed at zero for 2 seconds after commanded OFF by PCM.
    82 Transmission 1-2 shift solenoid voltage stayed high for 2 seconds after commanded ON by PCM, or the voltage stayed at zero for 2 seconds after commanded OFF by PCM.
    83 TCC PWM solenoid voltage stayed high for 2 seconds after commanded ON by PCM, or the voltage stayed at zero for 2 seconds after commanded OFF by PCM.
    84 Transmission 3-2 shift solenoid voltage stayed high for 5 seconds after commanded ON by PCM, or the voltage stayed at zero for 5 seconds after commanded OFF by PCM.
    85 TCC solenoid remained ON for 4 seconds after commanded OFF by PCM 90 TCC solenoid voltage stayed high for 2 seconds after commanded ON by PCM, or the voltage stayed at zero for 2 seconds after commanded OFF by PCM.
    91 One to Four up-shift lamp control signal showed incorrect potential voltage at PCM for 26 seconds.
    97 VSS output signal showed incorrect potential voltage at PCM for 26 seconds.
    98 Tach output signal showed incorrect potential voltage at PCM for 26 seconds.


    dave w
    Last edited by dave w; 09-26-2020 at 04:01 AM.

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