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How do you test throttle connector or motor - Razor MX500 Dirt Rocket

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3 Answers

I disconnected my back wheel from the controller and now the motor doesnt work


You disconnected while under power didnt you? if so the controller output transistor(s) have failed. most likely the cause why it doesn't work anyway.

Jul 21, 2016 | Electric Bicycle Motor, Bike,electric...

2 Answers

How do I find where the stepper motor is located on a 2004 trailblazer


Here's a step by step. http://forums.trailvoy.com/showthread.php?t=48886

Jul 05, 2014 | 2004 Chevrolet TrailBlazer

1 Answer

Location of egr valve on 2003 chevy silverado


Hi there:
Here is a picture showing the EGR valve on the 4.8 Litre V8. The numbers below go with the picture. The arrow points to the front of the truck.

(1) Fuel Injector 2 Connector
(2) Throttle Actuator Control (TAC) Motor Connector
(3) Throttle Actuator Control (TAC) Motor
(4) Exhaust Gas Recirculation (EGR) Valve Connector
(5) Exhaust Gas Recirculation (EGR) Valve
(6) Fuel Injector 6
(7) Ignition Coil 2


9_14_2012_3_34_36_am.jpg
Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Sep 14, 2012 | 1989 Chevrolet Camaro

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

Computer code p0505 -running at high idle


Hi, not sure which engine you have so I can't be precise, but here is what I recommend. Remove the idle air control valve and check the valve seat for blockage. If dirty, clean both the passages and the valve, reinstall and see if that resolves the code. If it isn't blocked or dirty, run the tests below using a volt/ohmmeter. The primary test to run is step 8. If the valve fails step 8, replace the valve. If it passes, then check the PCM reference voltages in step 7. Let me know if you have questions.


jturcotte_1104.gif


TESTING Conclusive testing of this component requires the use of special, factory-supplied equipment and is not included here. The tests below will provide valuable information regarding condition of the IAC motor and require only a VOM.

  1. Ignition must be OFF .
  2. Disconnect the IAC motor connector.
  3. Disconnect the PCM harness connector(s).
  4. Measure the resistance of the four IAC motor wires between the motor connector and the PCM connector. Refer to the illustrations for wire colors.
  5. Resistance should be under 5.0 ohms. Replace any wire with a higher resistance.
  6. Check for resistance between each motor lead and ground. Replace any wire with resistance under 5.0 ohms.
  7. Remove the ASD relay from the PDC (location is shown on the underside of the PDC cover. Connect a jumper between cavity 30 and 87 . Turn the ignition ON . Measure the voltage at each of the driver wires. Voltage should not exceed 1.0 v.
  8. With the ignition OFF and the IAC and PCM connectors detached, measure the resistance between each driver wire and ground. Resistance must be above 5.0 ohms in each case.
jturcotte_296.jpg

Fig. IAC motor assembly

jturcotte_1105.gif

Fig. IAC motor electrical connector pinouts


jturcotte_1106.gif

Fig. IAC motor and driver circuits



REMOVAL & INSTALLATION
The IAC motor is located on the rear of the throttle body secured by two Torx® screws.

  1. Disconnect the negative battery cable.
  2. Remove the air cleaner assembly.
  3. Unplug the IAC motor connector.
  4. Remove the two mounting Torx® screws.
  5. Remove the IAC motor from the throttle body.


WARNING When the IAC motor is removed from the throttle body, do NOT extend the pintle more than 0.250 inch (6.35mm). If the pintle is extended more than this amount, it may separate from the IAC motor and the motor will have to be replaced.

To install:
  1. Install the IAC motor in the throttle body.
  2. Tighten the mounting bolts to 60 inch lbs. (7 Nm).
  3. Plug the IAC electrical connector in.
  4. Install the air cleaner assembly.
  5. Connect the negative battery cable.
jturcotte_297.jpg

Fig. IAC motor mounting screws (arrows)

Feb 25, 2011 | 1999 Dodge Ram

1 Answer

My service engine light is on. and I took it too autozone to be checked and got the results: Large vacuum leak on engine, 2. throttle body condition-dirty and faulty IAC valve/throttle. what does this...


These are all things that can affect your gas mileage and engine performance.

To check for vacuum leak, look for unhooked hoses on top of engine. If OK, use starter fluid and spray along intake manifold gaskets with engine running. If engine speeds up, there is a leaking gasket.

IAC deals with idle. Does the car idle smoothly? If not, remove IAC to see if it's dirty. I will paste instructions below for the IAC valve.

Throttle body dirty--what code is this? never heard of such a code, but you can clean the throttle body wioth carb cleaner. I will paste instructions below.

IAC valve info:


Operation The amount of air taken in during idling is regulated by the opening and closing of the servo valve located in the air passage that bypasses the throttle valve. The servo valve is opened or closed by the activation of the stepper motor (incorporated within the idle air control motor in the forward or reverse direction. Battery positive voltage is supplied, by way of the MFI relay, to the coil of the stepper motor. The engine control module switches ON the power transistors (located within the engine control module) in sequential order, and, when current flows to the stepper motor coil, the stepper motor is activated in the forward or reverse direction.


Removal & Installation

  1. Disconnect the negative battery cable.
  2. Detach the electrical connector at the sensor.
  3. Remove the sensor from the throttle body.
To install:
  1. Install the sensor in the opening in the throttle body and tighten the sensor.
  2. Attach the electrical connector to the sensor.
  3. Connect the negative battery cable.


Testing
Checking Coil Resistance

  1. Disconnect the idle air control motor connector and connect the jumper (test harness).
  2. Measure the resistance between terminal (2) of the connector at the idle air control motor side and terminal (1) or terminal (3). Standard value: 28-33 ohms at 68°F
  3. Measure the resistance between terminal (5) of the connector at the idle air control motor side and terminal (6) or terminal (4). Standard value: 28-33 ohms at 68°F
  4. If not within specifications, replace the IAC Valve.
  5. If within specifications, check connectors and wiring between the sensor and ECM/PCM.
Checking Operation Sound
  1. Check that the operating sound of the stepper motor can be heard over the idle air control motor when the ignition switch is turned to the ON position (without starting the engine).
  2. If no operating sound can be heard, check the stepper motor drive circuit. (If the circuit is good, a defective stepper motor or engine control module is suspected.)

      0029f4e.gif
    IAC picture--mounted on top side of engine.
      Throttle body--loosten clamp to right of throttle body and pull hose off. Use electric parts cleaner or carb cleaner--spray on dirt with engine running. don't touch any sensors inside throttle body--sensors are delicate.
    b9362af.gif

    Oct 11, 2010 | 2005 Mitsubishi Endeavor

    1 Answer

    Need to replace a idle air control valve on a 1999 300M Chrysler


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



    da3669e.gif

    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.
    1. Disconnect electrical connector from IAC motor.
    2. Disconnect air plenum (where applicable).
    3. Remove two mounting bolts (screws).
    4. Remove IAC motor from throttle body.

    3ccd55e.gif

    To install:
    1. Install IAC motor to throttle body.
    2. Install and tighten two mounting bolts (screws) to 60 inch lbs. (7 Nm) torque.
    3. Install electrical connector.
    4. Connect air plenum (where applicable).

    Mar 06, 2010 | 1999 Chrysler 300M

    5 Answers

    Engine goes to idle while driving


    P2104 Throttle Actuator Control System - Forced Idle
    P2106 Throttle Actuator Control System - Forced Limited Power
    P2111 Throttle Actuator Control System - Stuck Open
    P2112 Throttle Actuator Control System - Stuck Closed
    P2135 Throttle/Pedal Position Sensor/Switch “A” /"B" Voltage Correlation
    I looked it up and I will give you a web site I got it from http://www.f150online.com/forums/v8-engines/280570-p2104-p2106-p2111-p2112-p2135.html I hope this helps

    May 25, 2009 | 2004 Ford Explorer

    1 Answer

    Pride mobility legend XL throttle/speed fault


    what about the overall connection , start at the handlebars from the speed pot,

    Take off the rear cover , first remove the seat, pull the connector one by one and plug back in,

    chec kthe connectors around the speed pot , in particualar if there is a circuit board.

    Apr 24, 2009 | Drive Medical Mini Phantom Three Wheel...

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