Liberty, Wrangler, 1997-2005

Diesel Engine Tune-Up Specifications

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DIESEL ENGINE TUNE-UP SPECIFICATIONS
Intake Valve OptionsInjection Pump SettingInjection Nozzle Pressure_(psi)Idle SpeedCranking Compression Pressure
15.6 --23,000 maxNA-
1NOTE: The Vehicle Emission Control Information (VECI) label figures must be used if they differ from those in this chart
2- PCM controlled
3- Maximum difference among cylinders: 72.5 psi
 
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