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Home >> Jeep >> 2007 >> Compass Limited, FWD, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Emissions Control System >> Description >> Non Monitored Circuits >> Vacuum Assist

Vacuum Assist

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.