RS 4 Quattro Cabriolet V8-4.2L (BNS) (2008)
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Using a Multimeter , check the Intake Manifold Runner Control (IMRC) Valve N316 terminals 1 to 2 for resistance
Specified value: 450 to 1000 Ohms
If the specified value was not obtained:
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Replace the Intake Manifold Runner Control (IMRC) Valve N316.
If the specified value was obtained:
Checking voltage
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Crank the engine.
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Using a Multimeter , check the Intake Manifold Runner Control (IMRC) Valve N316 electrical harness connector terminal 1 to ground (GND) for
voltage.
Specified value: battery voltage.
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Switch the ignition off.
If the specified value was not obtained:
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Check the wiring from the Intake Manifold Runner Control (IMRC) Valve N316 electrical harness connector terminal 1 to the Engine Component
Power Supply Relay J757 terminal 2/87 for a short circuit to Ground (GND), or an open circuit.
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Check the electrical harness connector for damage, corrosion, lose or broken terminals.
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If necessary, repair the wiring connection.
If no malfunctions are found in the wiring:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
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Install the test box.
If the manufacturers test box is not being used. Perform the following step.
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Remove the Motronic Engine Control Module (ECM) J623.
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Using a multimeter , check the Intake Manifold Runner Control (IMRC) Valve N316 electrical harness connector terminal 2 to the Engine Control
Module (ECM) J623 electrical harness connector T60 terminal 35 for an open circuit.
Intake Manifold Runner Control
Engine Control Module (ECM) J623
(IMRC) Valve N316 electrical
electrical harness connector T60