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Needs air idle sensor - 1996 Buick Century

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Http://cgi.ebay.com/ebaymotors/DELPHI-CV10015-Idle-Air-Control-Valve-_W0QQcmdZViewItemQQfitsZYearQ3a1996Q7cMakeQ3aBuickQ7cModelQ3aCenturyQQhashZitem3cb5fbe376QQitemZ260751221622QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

here is what one looks like on ebay..
the pointed tip is hidden in the air intake.(so you wont see that part on your car)..but you will see it is screwed on with 2 screws(usually TORX heads),,

check at the top of the engine, it will have an electrical plug attached to it as well..

hope this helps you out

Posted on Mar 13, 2011

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How to set idle because it it too high


idle is preset uses sensors --try cleaning the throttle body use specific cleaner and same with maf sensor --also look at air filter may need changing -i would suggest the air idle control valve but your complaint is high idle not rough or fluctuating with nissian will need to do relearn when done cleaning throttle body
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Google is your friend in such questions.

  • Idle air control actuator - Wikipedia, the free encyclopedia https://en.wikipedia.org/wiki/Idle_air_control_actuator An idle air control actuator or idle air control valve (IAC actuator/valve) ... Idle air control actuator; MAP sensor; Mass flow sensor; Oxygen sensor; Starter motor;
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    May 12, 2016 | 1992 Toyota Paseo

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    I hooked my 95 Mazda mil up and says I need O2 sensor for bank 1 and 2 and also says I need engine speed circuit not sure wat to replace and wats really messd up please help


    First is all always write down the codes you have present, it helps in closing down on the problem. I am assuming you have a 95 Mazda Milleinia

    1. Start and run the engine and monitor the oxygen sensor signals and see if this sensor has bad readings still. Check for an open or shorted wire between the sensor and the Engine Control Module (ECM) if the signal is dropping out.

    2. Listen for an exhaust leak in the area of the oxygen sensor, the leak could allow oxygen in to the exhaust and skew the sensor readings.

    3. Inspect the ECM and ECM connector for signs of something that has been spilled on the ECM. Is the engine idling too high or too low then check this:-
    1. Unplug the idle air control valve and turn the air bypass screw in to see if it will idle down. If it will idle down, adjust the idle speed to around 500 RPM's and then plug the idle air control valve back in.

    2. If it still idles high, remove the air boot from the throttle body, block the air bypass ports with duct tape, hook the air boot back on and start it. This should make it not idle at all or just barley idle. If it does, the problem is in the idle air control valve.

    3. If blocking the air ports doesn't cause it to idle down, the throttle plate must be sticking open. Clean the throttle plate really good and back the throttle stop screw off and then see if it idles down.

    4. Verify the coolant level is not low and that coolant is circulating through the idle air control valve. Tech Tips: This idle air control valve is two valves in one. It is a fast idle thermo valve on one side and a duty cycle idle air control valve on the other.

    Mar 30, 2015 | 1995 Mazda Millenia

    2 Answers

    Stalls while in drive with foot on brake , changed MAP Sensor, Crank Shaft Sensor , Distributor, Fuel Pump, Fuel Filter , have ran out of ideas


    I would check the IAC motor or idle air control motor, heres a little info.about the part.Stratus Sedan, 1999-2005 Idle Air Control Motor

    Print


    Description & Operation

    Not for Dodge Stratus Sedan
    The idle air control motor (IAC) attaches to the throttle body. It is an electric stepper motor. The PCM adjusts engine idle speed through the idle air control motor to compensate for engine load, coolant temperature or barometric pressure changes. The throttle body has an air bypass passage that provides air for the engine during closed throttle idle. The idle air control motor pintle protrudes into the air bypass passage and regulates airflow through it.
    The PCM adjusts engine idle speed by moving the IAC motor pintle in and out of the bypass passage. The adjustments are based on inputs the PCM receives. The inputs are from the throttle position sensor, crankshaft position sensor, coolant temperature sensor, MAP sensor, vehicle speed sensor and various switch operations (brake, park/neutral, air conditioning).

    0996b43f8020234f.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig.

    Not for Dodge Stratus Sedan
    When engine rpm is above idle speed, the IAC is used for the following functions:


    Off-idle dashpot Deceleration air flow control A/C compressor load control (also opens the passage slightly before the compressor is engaged so that the engine rpm does not dip down when the compressor engages)
    The idle air control motor (IAC) attaches to the throttle body. It is an electric stepper motor. The PCM adjusts engine idle speed through the idle air control motor to compensate for engine load, coolant temperature or barometric pressure changes. The throttle body has an air bypass passage that provides air for the engine during closed throttle idle. The idle air control motor pintle protrudes into the air bypass passage and regulates airflow through it.
    The PCM adjusts engine idle speed by moving the IAC motor pintle in and out of the bypass passage. The adjustments are based on inputs the PCM receives. The inputs are from the throttle position sensor, crankshaft position sensor, coolant temperature sensor, MAP sensor, vehicle speed sensor and various switch operations (brake, park/neutral, air conditioning).

    21180_cdia_g257.jpg enlarge_icon.gifenlarge_tooltip.gif

    Fig.

    When engine rpm is above idle speed, the IAC is used for the following functions:


    Off-idle dashpot Deceleration air flow control A/C compressor load control (also opens the passage slightly before the compressor is engaged so that the engine rpm does not dip down when the compressor engages)
    Target Idle
    Target idle is determined by the following inputs:


    Gear position ECT Sensor Battery voltage Ambient/Battery Temperature Sensor VSS TPS MAP Sensor
    Target idle is determined by the following inputs:


    Gear position ECT Sensor Battery voltage Ambient/Battery Temperature Sensor VSS TPS MAP Sensor


    Removal & Installation

    1. Disconnect the negative battery cable.
    2. Disconnect the IAC electrical connector.
    3. Remove the IAC mounting screws.
    4. Remove the IAC.

    To Install:
    1. Install the IAC to the throttle body.
    2. Tighten mounting screws to 5.1 Nm (45 inch lbs.) torque.
    3. Attach electrical connector to the IAC.
    4. Connect the negative battery cable.

      0996b43f80202350.jpg enlarge_icon.gifenlarge_tooltip.gif

      Fig.


    1. Disconnect the negative battery cable.
    2. Disconnect the IAC electrical connector.
    3. Remove the IAC mounting screws.
    4. Remove the IAC.

    To Install:
    1. Install the IAC to the throttle body.
    2. Tighten mounting screws to 5.1 Nm (45 inch lbs.) torque.
    3. Attach electrical connector to the IAC.
    4. Connect the negative battery cable.

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    2 Answers

    Engine fluctuating and cutting out all the time when slowing down to stop cos the revs drop too low


    Hi.

    If engine revolutions are going up and down even when you are driving, then you have a problem with the EGR valve.

    If problem is only when engine is idle, most common fault is the IAC (idle air control) valve, which regulates air when engine is idle. If IAC is OK, check air intake and the sensors installed in the air intake (MAF and IAT). The sensors detect the amount and temperature of air coming into the intake and determine the right amount of air to be mixed with fuel and injected.

    There are more problems that even if less frequently can cause rough idle. A good thing to do would DBII DTC scan can be done for free at the nearest Autozone.

    Regards.

    Ginko

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    2 Answers

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    LOW IDLE CAN BE CAUSED BY MANY THINGS.CLOGGED AIR FILTER. LOW COMPRESSION OR MISFIRE CONDITION.IDLE AIR INLET PASSAGE OR THROTTLE BORE IS DIRTY OR FULL OF DEPOSITS.IDLE AIR CONTROL VALVE FAILED.MASS AIR FLOW SENSOR COULD BE OUT OF CALIBRATION. THROTTLE PLATE THROTTLE SHAFT OR LINKAGE IS DAMAGED OR STICKING.PROBABLY HAVE REMOVE THROTTLE BODY ASSEMBLY REMOVE IDLE AIR CONTROL VALVE AND THROTTLE POSITION SENSOR.BUY CAN OF CARBURETOR OR THROTTLE BODY CLEANER SPRAY CLEAN ALL CARBON BUILT UP AROUND THROTTLE PLATES AND BORE.LET AIR DRY BUY A NEW THROTTLE BODY GASKET.

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    1 Answer

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    I believe you are talking about the same part there I dont believe you mean mass air flow sensor. Any way the part you need to deal with is the idle air control valve. On carbureted models it would be the idle speed control switch.

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    Nissan Quest 2001 turns off when idle


    Idle air control at base of throttle body. Passages could be plugged or idle hard stop needs adjusting.

    Air Intake System Sensors Air intake system sensors include a heated resistor-type mass air flow (MAF) sensor and throttle position (TP) sensor; both supply data to the powertrain control module (PCM). The PCM also monitors engine speed.
    Air Intake System Control Devices The idle air control (IAC) solenoid regulates idle speed by adjusting the amount of air allowed into the intake manifold. Adjustment is made by varying the duty cycle output by the powertrain control module (PCM). The PCM will increase the duty cycle for added mechanical or electrical loads. The IAC solenoid is combined with the fast idle control (FIC) solenoid which is turned on when the air conditioner is engaged to help compensate for the additional load. The IAC valve must be replaced as an assembly with the FIC solenoid.
    Fast Idle Control (FIC) Solenoid The fast idle control (FIC) solenoid (Figure 1) compensates for idle speed change caused by the operation of the air conditioner compressor. The FIC solenoid is controlled by the FIC relay. The FIC relay is energized when the air conditioner clutch is energized and the relay allows the FIC solenoid to turn on and let an additional volume of air into the intake manifold.
    Figure 1: Fast Idle Control (FIC) Solenoid
    53edf6d.gif
    47fb9be.gif ------------------------------------------------------
    Throttle Body (TB) The throttle body (TB) controls the amount of air that flows into the engine through a single butterfly valve. The single butterfly valve opening is determined by the accelerator pedal. The TB is cast with an air bypass channel and houses several emission-related components for the powertrain control module (PCM).
    --------------------------------------------------------
    Throttle Position Sensor (TP Sensor) The throttle position (TP) sensor responds to the accelerator pedal movement. The TP sensor is a potentiometer that transforms the throttle plate opening angle into output voltage and sends the voltage signal to the powertrain control module (PCM). In addition, the sensor detects the opening and closing speed of the throttle plate and sends the voltage signal to the PCM. Also, the TP sensor is used to determine the air intake when the mass air flow (MAF) sensor fails. This mode of operation is called Fail Safe.
    The TP sensor integrates the idle (IDL) switch within the housing. The IDL switch detects when the throttle plate is closed and an idle condition occurs. The PCM is supplied with this input signal.

    IDLE SPEED

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    Apr 03, 2009 | 2001 Nissan Quest

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