OBDII Code Eliminator after Removing VSV’s


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

::

  • There are a total of 4 VSV’s. Two are
    located in front, right above the Alternator and below the coolant elbow. 
    The other 2 VSV’s are located on top above the rear turbo. See Yellow Boxes in
    Fig 1.1

 
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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