You can monitor fuel rail pressure with Torque, if i remember correctly mine peaks around 1800-1900 psi under full throttle
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Also... to monitor a faulty HPFP can Torque monitor it when there are no HPFP symptoms? In my case the symptoms (engine shuttering at start up) come and go, when the engine runs ok ad i montor it with Torque will the problem be seen then?