OBDII Code Eliminator after Removing VSV's
 By: Tom Cardone & Al Stanek

Purpose: To prevent check engine light from turning on after removing the IACV & EGCV VSV's. 
       Eliminates MIL Codes
P1652   Idle Air Control Valve Control Circuit
P1658   Wastegate Valve Control Circuit
P1661   Exhaust Gas Control Valve Control Circuit
P1662   Exhaust by-pass Valve Control Circuit
 
Parts Required: 4 Resistors: 1K Ohm 1/2 watt resistors (Available at Radio Shack) and Electrical tape.
 
Time Required: 10 - 20 minutes

Steps::

 
FIG 1.1

  1. Two bottom VSV's connectors as seen in Fig 1.2 (Blue Connector & Black Connector)
    In the Blue Connector, Install 1K Ohm 1/2 Watt Resistor.  In the Black Connector, Install 1K Ohm 1/2 Watt Resistor. See Fig 1.3 of the resistors installed. After Installing them use electrical tape as seen in Fig 1.4 and tape the connectors.



     
FIG 1.2                         FIG 1.3                          FIG 1.4

  1. Repeat the same operation for the top two VSV's as shown in FIG 1.1
    In the Blue Connector, Install 1K Ohm 1/2 Watt Resistor.  In the Black Connector, Install 1K Ohm 1/2 Watt Resistor. See Fig 1.3 of the resistors installed. After Installing them use electrical tape as seen in Fig 1.4 and tape the connectors.
     


    (    Optional, If you NEVER plan on using these connectors you can cut them and solder in the resistor)
    See Photo's below how we cut the harness short and soldered the resistors in line.
    This was done to hide the resistors and harness under the engine cover...

     

     
     

This modification has been tested with success on two separate 1998 Supra's!

If you have any further questions please email ttbomb@comcast.net

 

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