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Where do i find the idle air control sensor on my lacetti premiere 2009 1.6 engine

Idle air control sensor

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SOURCE: will not hold idle when in drive or reverse 1991 S10 Blazer

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SOURCE: wont idle. change mass air flow sensor and idle

check the engine breather pipes for splitting and perishing

Posted on Jun 04, 2010

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My 2009 BMW 320i idle a bit higher. What cause that


The automatic idle control valve senses engine temperature and allows an extra amount of air to bypass the throttle plate. The valve may need cleaning or the sensors may becoming faulty.

Dec 18, 2016 | 2009 BMW 320i

2 Answers

What is an IAC Valve


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;
  • how to tell if your iac valve is going bad - YouTube www.youtube.com/watch?v=oNO8GCN8jQA
    • BY TIMMY102345
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    2009-09-07 · Video embedded · how to tell if your iac valve is going bad timmy102345. ... #372 Better repair method Toyota Camry Idle Air Control Valve - ...
  • 4 Ways to Check an Idle Air Control Valve - wikiHow www.wikihow.com/Check-an-Idle-Air-Control-Valve
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    2015-12-11 · How to Check an Idle Air Control Valve. ... Again, an idle air control valve can have an issue or fault without triggering a check engine light. 2.


  • There are also videos in this link. How to check and fix.

  • What is an IAC Valve Bing video

    May 12, 2016 | 1992 Toyota Paseo

    1 Answer

    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

    1 Answer

    What other cars have the same crank shaft sensor as a chevrolet lacetti 2006, chevrolet opera 2006


    check with GM spares as the sensor is probably the same used in a wide variety of Chevs of the same engine family.

    Dec 03, 2014 | Chevrolet Cars & Trucks

    2 Answers

    I have a 2009 Chevy Aveo saden 4d LT, the car idles and takes off roughly


    Hello
    The Engine and Automatic Transmission (not applicable to manual transmissions) in this vehicles drive train are fully electronically controlled by a computer called the PCM and TCM (Power Train Control Module, Transmission Control Module). When a problem like this or other drive-ability related problems occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPENDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM. Also always check fuel pressure for correct spec for your make and engine type.

    Sep 12, 2012 | 2009 Chevrolet Aveo

    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.

    May 11, 2012 | 2000 Chrysler Cirrus

    3 Answers

    The check engine light is on and the car is idling high and jerking while stopped?Does anyone know whats wrong with it. I have a 2009 chevy hhr. Thanks


    No one is going to know what is wrong with it. You must find out why the engine light is on. The PCM has detected a fault in one or more of its systems. In order to know what the fault may be you must retrieve the codes stored in it. Most auto part stores will hook up a generic OBD II code reader for free. But since its an 09, it should be under warranty. If you tinker with it, can't fix it so then take it to the dealer, they may deny your warranty claim because you worked on it first.

    Oct 14, 2011 | 2009 Chevrolet HHR

    3 Answers

    Idle at 250 rpm


    Idle Speed Control (ISC) Motor OPERATION Eagle Throttle Body Fuel Injection (TBI) System NOTE: The Eagle TBI system is used only on 2.5L Premier engines. The Idle Speed Control (ISC) motor is mounted to the throttle body and controlled by the PCM. The throttle lever rests against the initial adjustment screw of the actuator (plunger). The idle speed is not adjustable. The initial adjustment screw is only used to establish the initial positioning of the actuator when the ISC motor has been replaced. The actuator extends or retracts to control engine idle speed and to set throttle stop angle during deceleration. Based on inputs from the various engine control system sensors and switches to the PCM supplies current to the ISC motor to adjust the actuator position for the particular operating conditions.
    ---

    Aug 05, 2010 | 1995 Dodge Spirit

    1 Answer

    Does a 2001 have a iat sensor?


    Idle Air Control (IAC) Motor OPERATION The IAC motor is mounted to the throttle body and is operated by the engine controller. The throttle body has an air control passage that provides air for the engine at idle (when the throttle plate is closed). The IAC motor pintle protrudes into the air control passage and regulates air flow through it. Based on various sensor inputs, the engine controller adjusts engine idle speed by moving the IAC motor pintle in and out of the air control passage. The IAC motor is positioned when the ignition key is turned to the ON position.

    80ae138.gif
    OPERATION Found on V6, V8 and V10 engines, the intake manifold air temperature sensor is a variable, thermister type which reacts to temperature changes. In cold air, its resistance is high. As temperatures increase, its resistance decreases.





    a1fee25.jpg
    Fig. 2: Location of the intake manifold air temperature sensor — V8 engines

    c3ae7d3.gif
    The sensor element itself extends into the intake manifold air stream to provide input voltage to the engine controller. This signal is used along with signals from other sensors by the engine controller to determine the fuel injector pulse width.

    Aug 25, 2009 | 2001 Dodge Ram 2500 Truck

    2 Answers

    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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