Air Leak Between Throttle Body and Intake Valves
Code P2282 indicates that the engine control module (ECM) has detected an air leak in the intake system between the throttle body and the intake valves. This unmetered air entering the engine causes a lean air-fuel mixture, leading to performance issues. Common causes include a loose or damaged intake manifold gasket, cracked intake hoses, a faulty throttle body gasket, or a leaking brake booster vacuum line. The ECM monitors the difference between the measured and expected air flow; when the discrepancy exceeds a threshold, it sets this code.
01. Most Common Causes
- Intake manifold gasket leak
- Cracked or disconnected vacuum hoses
- Throttle body gasket leak
- Brake booster vacuum leak
- Loose or damaged intake ducting
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Rough idle or stalling
- Lean air-fuel mixture (high O2 sensor readings)
- Poor acceleration or hesitation
- Possible whistling sound from engine bay
03. Step-by-Step Diagnosis
Step 1: Scan for codes and verify P2282 is present.
Step 2: Visually inspect intake hoses, vacuum lines, and gaskets for cracks or looseness.
Step 3: Use a smoke machine to pressurize the intake system and locate leaks.
Step 4: Check and tighten all intake connections; replace any damaged components.
Step 5: Clear codes and test drive to confirm repair.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive with this code as it can cause poor engine performance, increased emissions, and potential damage to the catalytic converter due to a lean mixture.
How much does it cost to fix?▼
The cost to fix P2282 typically ranges from $50 to $150 for parts and labor, depending on the source of the leak. A simple hose replacement may be on the lower end, while intake manifold gasket replacement could be higher.