Posted on 8/19/2024
Engine Misfire and Fault Code P105D or P105C In 2016 Chrysler released a version of the Penestart Engine labeled the Upgraded design, the new features included a liquid cooled EGR, Electronic Stop Start, a 20 degree increase in VCT phase angle and specific to this post the VVL or Variable Valve Lift System. The VVL was designed to reduce intake stroke pumping losses and increase efficiency under light load conditions. The reduction in incoming air mass into the cylinder was now a controllable function by way of the valve train. The system is only for the intake camshaft and there are four control solenoids, two in the front and two in the rear. The front VVL solenoids are in charge of 1 cylinder where as the rear VVL solenoids are in command of two cylinders per. The system has two positions or steps, high lift, which is the default, and low lift. The high lift lobe is narrow and sandwiched in between two low lift camshaft lobes forming a hydraulic finger follower design ... read more