P2348 moderate

Intake Manifold Runner Control Circuit High

The P2348 code means the vehicle's onboard diagnostic system has detected: Intake Manifold Runner Control Circuit High. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
moderate
Estimated cost
$200 - $500 (parts and labor)
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Common Symptoms

  • Check Engine Light on
  • Reduced engine power at higher RPMs
  • Rough idle or slight hesitation
  • Whistling or vacuum leak sound from intake area
  • Decreased fuel efficiency

Probable Causes (Ranked by Likelihood)

  • Open or short to battery in runner control circuit Very High
  • Failed intake manifold runner control actuator High
  • Wiring harness damage near intake manifold Moderate
  • PCM internal fault Low

Step-by-Step Diagnostic Procedure

  1. Read and document freeze frame data for P2348

  2. Inspect intake manifold runner flaps for free movement and carbon buildup

  3. Test runner control actuator operation with a scan tool bi-directional test

  4. Check wiring continuity and connector condition for the runner control circuit

Frequently Asked Questions

What does P2348 mean?

P2348 indicates a problem with the intake manifold runner control system: Intake Manifold Runner Control Circuit High. This system optimizes airflow into the engine at different RPM ranges.

Can I drive with P2348?

You can drive short distances. The engine may feel less responsive at certain RPMs but is generally safe for short trips. Schedule a repair to restore full performance.

How much does it cost to fix P2348?

Repair costs range from $200 to $500 depending on whether the actuator, sensor, or manifold runner assembly needs replacement.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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