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Home >> Jeep >> 2017 >> Grand Cherokee SRT >> Repair and Diagnosis >> External Pages >> Different car >> Section 284 (Emissions Control) >> Description >> Non-Monitored Circuits >> Vacuum Assist
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Vacuum Assist

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.

The PCM cannot detect leaks or restrictions in the vacuum circuits of vacuum assisted engine control system devices. However, these could cause the PCM to store a MAP sensor diagnostic trouble code and cause a high idle condition.