Codes to delete for Vac Mod?
 

What codes need to be deleted when doing the Vacuum mod on a 4l60e? The kit i have has the resistor to install which im guessing is to trick the computer.. but wasnt sure. Either way, what codes need to be deleted or what else needs to be changed? Thanks in advance!

Its been a few yrs since I did mine but don't bother with the resistor-just go in and turn off the codes associated with the PCS. I cant remember how many there were (2 or 3 Im thinking)

I assume you are doing this mod because you are boosted? If so, dont forget to install the little check valve thingy to vent off some of the pressure under boost or you will damage the vac modulator.

All DTC pertaining to the force motor and circuitry...

thank you... no not boosted. Just have had issues with transmissions in the past, and I like what the vac mod does. Check ball is still going in :thumb:

cant find anything about the force motor... not sure on what to delete still after looking at this... this is all the tranny dtc codes:

P1700 Transmission MIL Request

P1701 Transmission MIL Request Circuit

P1705 P/N Signal Output Circuit

P1740 Transmission Torque Reduction Request Circuit

P1743 TP Signal From ECM

P1760 ECM Supply Voltage Interrupted

P1779 Engine Torque Delivered To TCM Signal

P1780 Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit

P1790 Transmission Control Module Checksum

P1791 Transmission Control Module Loop

P1792 Transmission Control Module Reprogrammable Memory

P1793 Transmission control Module Stack Overrun

P1795 CAN Bus-Throttle Body Position

P1800 TCM Power Control Relay Circuit Open

P1801 Performance Selector Switch
Failure

P1804 Ground Control Relay

P1810 TFP Valve Position Switch Circuit

P1811 Maximum Adapt And Long Shift

P1812 Transmission Over Temperature Condition

P1813 Torque Control

P1814 Torque Converter Overstressed

P1815 Transmission Range Switch-Start In Wrong Range

P1816 TFP Valve Position Switch-Park/Neutral With Drive Ratio

P1817 TFP Valve Position Switch-Reverse With Drive Ratio

P1818 TFP Valve Position Switch-Drive Without Drive Ratio

P1819 Internal Mode Swtich No Start, Wrong Range

P1820 Internal Mode Switch Circuit A Low

P1822 Internal Mode Switch Circuit B High

P1823 Internal Mode Switch Circuit P Low

P1825 Internal Mode Switch Illegal Range

P1826 Internal Mode Switch Circuit C High

P1831 PC Solenoid Power Circuit Low Voltage

P1833 A/T Solenoids Power Circuit Low Voltage

P1835 Kick-Down Switch

P1836 Kick-Down Switch Failed Open

P1837 Kick-Down Switch Failed Short

P1842 1-2 Shift Solenoid Circuit Low Voltage

P1843 1-2 Shift Solenoid Circuit High Voltage

P1844 Torque Reduction Signal Circuit Desired By TCM

P1845 Transmission Gear Ratio Output Circuit

P1847 2-3 Shift Solenoid Circuit High Voltage

P1850 Brake Band Apply Solenoid Circuit

P1851 Brake Band Apply Solenoid Performance

P1852 Brake Band Apply Solenoid Low Voltage

P1853 Brake Band Apply Solenoid High Voltage

P1860 TCC PWM Solenoid Circuit Electrical

P1864 Torque Converter Clutch Circuit

P1868 Transmission Fluid Life

P1870 Transmission Component Slipping

P1871 Undefined Gear Ratio

P1873 TCC Stator Temp. Switch Circuit Low

P1874 TCC Stator Temp. Switch Circuit High

P1875 4WD Low Switch Circuit

P1884 TCC Enable/Shift Light Circuit

P1886 Shift Timing Solenoid

P1887 TCC Release Switch Circuit

P1890 ECM Data Input Circuit

P1891 Throttle Position Sensor PWM Signal Low

P1892 Throttle Position Sensor PWM Signal High

P1893 Engine Torque Signal Low Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code

P1894 Engine Torque Signal High Voltage - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code

P1895 TCM To ECM Torque Reduction Circuit - Read Our Article on Automotive Circuit Testing For Help With This Chevy Check Engine Light Code