Features of the Throttle Body Assembly include:
- IAC valve assembly mounted directly to the throttle body assembly (some vehicles).
- A pre-set stop to locate the WOT position.
- An air supply channel upstream of the throttle plate to provide fresh air to the PCV system (some vehicles only).
- Individual vacuum taps for PCV, EGR, EVAP and miscellaneous control signals (some vehicles only).
- PCV air return (if applicable).
- A throttle body-mounted TP sensor.
- A sealant/coating on the throttle bore and throttle plate makes the throttle body air flow tolerant to engine intake sludge accumulation. These throttle body assemblies must not be cleaned and have a white/black attention decal advising not to clean.
- A non-adjustable stop screw for close plate idle air flow.