Remove / Install TPS and IAC (MPFI Horizontal Intake)

Author: Jonathan Swain (aka "PurdueGuy")

Relevant Models

1991-1992 SC
1995-2002 SC1
1993-1999 SC2
1995-2002 SL
1995-2002 SL1
1991-1999 SL2
1993-2001 SW1
1993-1999 SW2


*These steps could be done with the throttlebody attached or removed.*

TPS = Throttle Position Sensor

IAC = Idle Air Control valve


Torx bit (size?)


Step 1

Before removing the TPS and IAC, unplug them from the wiring harnesses attached to them.  Simply pull outward on the tab that clicks each into place, and pull the plug out of the harness.

See the photo below to identify which part is which.

Step 2

To remove both parts, simply use a torx tool and loosen 2 screws on each.

Parts removed:


Installation is the reverse of removal.

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