R8 Quattro Coupe V10-5.2L (BUJ) (2010)
-
Replace the Intake Manifold Runner Control (IMRC) Valve (N316). Refer to appropriate service information.
If the specified value was obtained:
Checking voltage
Crank the engine.
-
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.
-
Switch the ignition off.
If the specified value was not obtained:
-
Check the wiring from the Intake Manifold Runner Control (IMRC) Valve (N316) electrical harness connector terminal 1 to the Motronic Engine
Control Module (ECM) Power Supply Relay (J271) terminal 2/30 for an open circuit or a short circuit to Ground (GND).
-
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
-
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.
-
Install the test box.
If the manufacturers test box is not being used, perform the following step.
-
Remove the Motronic Engine Control Module (ECM) (J623) Refer to appropriate service information.
-
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 6 for resistance.
Specified value: 1.5 ohms Max.
If the specification was not obtained: