INFINITI G37 engine RPMs increase then decrease causing stalling with service engine, slip, and VDC lights on on INFINITI G37

Some INFINITI G37 owners report experiencing engine RPM fluctuations that increase and then decrease, often leading to stalling, accompanied by service engine, slip, and VDC lights illuminating. These issues may stem from problems within the fuel system, air intake system, or ignition system. Additionally, an erroneous signal from the MAF sensor can trigger the check engine light and OBD trouble codes. Owners may encounter fault code P0507, which indicates a high idle condition, causing the engine to idle at around 2,000 RPM instead of the normal 650 RPM. Furthermore, issues with exhaust flow can disrupt air intake, leading to engine stumbling at specific RPM ranges. Fluctuations in RPMs may also relate to torque converter lock-up, traction control engagement, or transmission behavior, and they can indicate underlying problems with fuel and air combustion in the engine. It is advisable for owners to check these systems, address MAF sensor errors, investigate fault codes, ensure proper exhaust flow, and consider cleaning the throttle body and MAF sensors. Seeking professional diagnosis and repair is crucial to prevent serious engine damage and warranty issues.