The code P20F4 appears from the car engine problem. When the fuel consumption was amplified, hurrying was extremely cooperated, and the loss of engine vacuum led to a unsafe loss of decelerating backing when the P20F4 Code system was in 4-cylinder mode. In addition to these matters, while the company planned a hydraulically controlled system that could be substituted from within the car, the version they applied had to be physically different in the engine section using hand tools. The poor running signs are steady with a MAP sensor fault. Again, the ELD code likely embodies a discrete cabling issue.