That picture was probably the idle air valve. It is controlled by the module. On our car, its a black box in the middle of the firewall towards the brake booster side. The connector presses onto the pins on the bottom of the box, and nothing really holds it on securely. Maybe a long zip tie would make sense.

Idle is 550-600 rpm in drive, 700 in neutral. No stalling.

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1985 380SE Blue/Blue - 230,000 miles
2012 Subaru Forester 5-speed
2005 Toyota Sienna
2004 Chrysler Sebring convertible
1999 Toyota Tacoma