Question about 1999 Subaru Impreza

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Subaru impreza Where on the manifold is the Idle air control solenoid valve? ON a 99 Subaru impreza Sedan 2.2 Engine?

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Right on the top of the mass air intake where the air cleaner attaches. It has a small host running toward the front of the engine and two screws to remove it. Try cleaning it before replaceing it.

Posted on Jul 07, 2009

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2 Answers

1995 impreza engine cuts out stamers at low rpms


Check if you have rough idling as well. You may want to clean out the MAF sensor found at its intake manifold. You may use carb cleaners to spray it or tuner sprays. Other than that it could be loose wiring or vacuum hoses. A faulty or dirt Idle Air control valve may cause the problem.

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First, make sure your airfilter is not plugged. If it is, the engine is compensating for the lack of air intake. If not, consider replacing the Idle Control Valve. Inquire with an auto parts dealer (store) for this part.
Please let me know if you need further assistance.
carsandcomps,
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Here is a list of Subaru diagnosis codes. If these are not what you are coming up with let me know the numbers you are getting and I will look them up on my genisys scanner to further assist you.
1111 No codes stored
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2 Answers

Replacing Idle Control Valve on 97 Pathfinder, need help!


it's on the throttle body. Here's a Quest with same 3.0L engine. These often need cleaning with carb or throttle body cleaner

Idle Air Control (IAC) Valve When the engine (6007) is running but not at idle, the throttle valve controls the amount of air admitted into the engine. The powertrain control module (PCM) (12A650) increases the fuel injection output in proportion to the increased airflow to achieve the appropriate air/fuel ratio. During idle, the throttle valve is almost fully closed. It is therefore necessary for the idle air control system to supply air for combustion during idle. The idle air control (IAC) valve allows a metered amount of air to enter the intake manifold (9424). The camshaft position (CMP) sensor detects engine speed and sends a signal to the PCM. The PCM sends a duty cycle (On/Off) signal to the IAC valve which allows additional air to enter the intake manifold. Air is added by the IAC valve to maintain the set lowest idle speed at which the engine can operate. The idle speed adjusting screw allows adjustment of the airflow into the intake manifold.

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Fast Idle Control (FIC) Solenoid The fast idle control (FIC) solenoid helps maintain a constant idle speed while the air conditioning is operating. When the air conditioning is turned on, the front climate control panel sends out two signals. One signal is sent to the powertrain control module (PCM) (12A650) to engage the A/C compressor (19703). The second signal is a ground signal sent to the FIC solenoid relay, to engage the FIC solenoid. The FIC solenoid supplies additional air to adjust the increased engine load.

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1998 subaru legacy check engine ligt


i have the same problem the red check engine light :(

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