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DTC / Descrip‐ tion Monitor Strategy Descrip‐ tion Malfunction Crite‐ ria and Threshold Value Secondary Parame‐ ters with Enable Conditions Monitoring Time Length MIL Il‐ lum. Component Diag‐ nostic Procedure P2279 MAP/ MAF - Throttle Position Correla‐ tion Intake Air System Rationali‐ ty Check • General condi‐ tions: • Filtered lamb‐ da controller in‐ cluded correc‐ tion and adap‐ tion -30.0 – 30.0 % • Lambda con‐ trol active • And tle area control‐ ler > 60.0 % • Throttle position > 0.0° TPS • Throttle position < 100.003° TPS • Engine speed > 576; < 3,008 RPM • Modeled pres‐ sure quotient > 0.27; < 0.60 [-] • Engine running commanded on • Time after engine start > 5.0 s • Throttle position sensor failure not detected • Fuel cut off not active • Fast throttle adaptation finish‐ ed • Gradient intake manifold pres‐ sure -199.90 – 199.90 kPa/s • Engine speed limitation not ac‐ tive • Barometric pres‐ sure plausibility diagnosis finish‐ ed • Intake manifold modeled adap‐ tion active • And tive • Or sure sensor ac‐ tive • And stream throttle < 135.0 kPa • 5.0 s uous • 2 DCY – Check visually for air leaks be‐ tween intake and throttle body, oil fill cap not tight or oil dipstick not seated in tube. – Also visually in‐ spect any en‐ gine gaskets that can cause additional air to enter the crank‐ case can set this fault as the PCV system is not metered. If a vacuum leak or crankcase gas‐ ket sealing is at cause, the idle may be rough or unstable. GTI 2014 ➤ Generic Scan Tool - Edition 04.2015 3. Diagnosis and Testing 185 |