Okay, here's information regarding the OBD-II diagnostic trouble codes P0112 and P0113 on a Porsche vehicle: **Porsche Diagnostic Trouble Code: P0112** The **P0112** code specifically in Porsches (like your 968) indicates that the PCM has detected an Intermittent Input Signal from the Intake Air Temperature (IAT) sensor circuit. This means the signal is present sometimes, but not consistently or correctly at other times. The **Intake Air Temperature Sensor** measures the temperature of the air entering the engine through the throttle body / Mass Air Flow (MAF) housing area. The PCM uses this information alongside MAF readings to calculate optimal fuel injection and ignition timing for various operating conditions. **What Does It Mean?** This code suggests a problem with the electrical signal coming from your IAT sensor *to* the PCM, characterized by inconsistency or erratic behavior. This is different than P0113 which indicates consistently low voltage/signal. **Common Causes:** 1....
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