check this stuff first or any gromet on engine for cracked or leaking or airduct not properly installed on throttle body or air cleaner clean throttle body as well.

nostic Aids

rm this test when instructed during QUICK TEST or if directed by other test procedures. This test is used to diagnose the following:

? Accelerator linkage.
? Air cleaner assembly.
? Air inlet tube.
? Clean air tube and resonator.
? Throttle body assembly.
? IMRC actuator assembly.
? Intake Manifold Runner Control (IMRC) assembly.
? Wiring harness circuits (IMRC, IMRC MONITOR, SIG RTN, PWR GND and VPWR).
? Powertrain 

imrc is item 16 in pic attached