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Posts Tagged: LDP

Chrysler Evaporative Emissions System — How it works

Learn how the Chrysler evaporative emissions system works and what fails The Chrysler evaporative emissions system is different than most other EVAP systems. Chrysler has relied on some form of natural vacuum leak detection for several decades now. Here’s how it works. All vehicle manufacturers are required to build test sequences to detect a possible leak of fuel vapors into the atmosphere. They can do this in two ways: by adding pressure to the system or by pulling a vacuum on the system. Starting in 1996 Chrysler used a pressure … Read More


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