Celebrity V6-191 3.1L (1990)
Throttle Plate - PFI: Adjustments
Throttle Body Assembly
NOTE:
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This adjustment should only be performed when installing a replacement throttle body.
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The idle stop screw is used to regulate the minimum throttle valve position. On original equipment throttle bodies, it is adjusted at the factory,
then covered with a plug to discourage unnecessary readjustment.
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The battery must be disconnected during the replacement procedure and then reconnected before checking IAC valve counts. This will enable the
ECM to relearn the IAC valve position.
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IAC valve counts should be checked with all accessories (A/C, rear defog, etc.), and engine cooling fan OFF.
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Make sure the throttle and cruise control cables do not hold the throttle open.
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With the engine stabilized, IAC valve position should be 10 to 20 counts. If not, repeat the adjustment procedure.
