Common questions

Where is the intake manifold runner?

Where is the intake manifold runner?

The intake manifold runner control is an engine management component that is found on newer intake manifold designs. It is usually a motorized or vacuum actuated unit attached to the intake manifold, that controls the opening and closing of butterfly valves inside of the intake manifold runners.

What is a code P2004?

The P2004 diagnostic trouble code indicates that the intake manifold runner control (IMRC) is stuck in the open position on Bank 1. By regulating intake airflow, harmful emissions are reduced, the air/fuel mixture is improved, and fuel economy is increased. The components of the IMRC include: vacuum actuator.

Can you change the IMRC on a F150?

The F150 Roushcharger uses the the IMRC to control boost dump, so don’t change it with IMRC deleting in mind – rather change it to control boost coming on at lower throttle positions. Personally, I would not use HP Tuners to program a Roushcharged F150, there are too many tables missing for a good, full and proper Roushcharger tune. Having fun!

How to test the IMRC module in a Ford master?

Ford master You can test the IMRC actuator by manually operating the throttle (engine running) and then watch the actuator. I open the throttle like on hard acceleration and then let off. Let me know if the rods are attached to the actuator and the shaft in the manifold.

Can you delete the IMRC on a S197 Mustang?

With that being said, you MUST follow the detailed instructions below when deleting them on the S197 3V Mustangs, as well as any 3V 5.4 truck. The reason for this is when you set the “IMRC Switch” to “Disabled” the pcm thinks they are closed at all times, and you obviously want the “Open” table values to be used.

Why is the IMRC switch set to disabled?

The reason for this is when you set the “IMRC Switch” to “Disabled” the pcm thinks they are closed at all times, and you obviously want the “Open” table values to be used. 1: Under Engine, Airflow, General Airflow, change “IMRC Switch” to “Disabled”.

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Ruth Doyle