Fuel and air

P2282 — Air Leak Between Throttle Body and Intake Valves

Severity: medium Drive with care, to a shop

What P2282 means

The ECU compares expected airflow with what the MAF, MAP and throttle position sensors report, along with fuel trims. If more air is entering the engine than passed through the throttle, it sets P2282. This points to a leak somewhere in the intake path downstream of the throttle plate.

Symptoms

  • Rough or unstable idle
  • Lean codes (such as P0171 or P0174), especially under load
  • Check Engine light on
  • Hissing or whistling from the engine bay
  • Weak acceleration and higher fuel use
  • Hesitation or hard starting

Possible causes

  1. Leaking intake manifold gasket
  2. Cracked plastic intake manifold
  3. Loose throttle body or damaged throttle body gasket
  4. Split or disconnected vacuum hoses and intake ducts
  5. Faulty PCV valve or hoses
  6. Mechanical engine fault affecting the intake

How to diagnose

  1. Read codes and freeze frame data, and note any lean-mixture codes
  2. Inspect intake ducts, vacuum hoses and fittings for cracks or loose connections
  3. Check throttle body bolts and gasket condition
  4. Listen for hissing at idle
  5. Smoke test the intake system to locate the leak
  6. Compare fuel trims at idle and at about 2,500 rpm
  7. Inspect PCV hoses and valve
  8. Clear codes after repair and confirm it does not return

Common fixes

  • Replace the intake manifold gasket
  • Replace a cracked intake manifold
  • Replace the throttle body gasket and torque the fasteners
  • Replace damaged vacuum hoses and ducts
  • Replace faulty PCV components

P2282 on different brands

Ford · manuals
Ford documents P2282:00 in its 2024-2025 gasoline-engine OBD monitor strategy as an air leak between the throttle body and intake valve; it identifies the monitored condition, not a confirmed failed part.

Questions and answers

What does P2282 mean?

The ECU detected air entering the engine that did not pass through the throttle. It usually means a leak in the intake path after the throttle.

How do I find the air leak?

A smoke test is the most reliable method. Without one, inspect hoses and gaskets, listen for hissing at idle, and compare fuel trims at idle and under load.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.