What is engine code P2279?
OBD Code P2279 – Intake Air System Leak It is a generic code for the engine control module detecting a vacuum leak into the engine. It would mean that unmetered air is entering the engine without the engine sensing it going through the mass air flow sensor as well as the throttle body.
Is a P2279 code bad?
Trouble code P2279 indicates that an air leak has occurred on the “metered” side of the Intake Manifold. When the Mass Air Flow (MAF), the Intake Air temperature and Oxygen Sensor show a disparity, a leak is recognized and the (fault) code P2279 is set.
What causes vacuum leaks in cars?
The most common cause of a vacuum leak is a broken tube or hose, but many parts within your engine can wear out and throw off the air/fuel ratio. Several regulators and valves require a vacuum source to operate properly and gaskets/seals help keep the system airtight.
How to check for a Volkswagen p2279 code?
Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost to diagnose the P2279 VOLKSWAGEN code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type.
What are the symptoms of the p2279 trouble code?
The PCV valve or hose is leaking or cracked causing excess air to get into the engine unmetered. What are the symptoms of the P2279 code? The Check Engine Light will be illuminated and the code is set in the ECM memory as a fault. The engine may run very rough and stall if the vacuum leak is major. The engine may run lean and misfire.
What is the fault code for a 2005 Jetta?
2005 VW Jetta fault code P2279 & P0300 thru P0305. No extra faults found w/new plugs, coils, and purge valve. Also, the valve cover has been replaced. The fault light will come on during hard acceleration in lower gears.
Is the p2279 air intake system leak code?
Vehicle runs fine with no symptoms but throws P2279 air intake leak fault when towing. Fault clears with new ignition cycle and runs fine when solo. Landrover Assist and Servive centre have disconnected air intake to throttle body and checked all ok. Runs fine with good idle, no stalling or hissing