Cumminz

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM. Fault Code 449 is activated when the sensed rail fuel pressure exceeds for several consecutive seconds the opening pressure of the fuel pressure relief valve. Fault Code 449 is not used to indicate a fuel pressure relief valve opening. It is used to indicate a fuel pressure relief valve which fails to open or does not regulate pressure. Troubleshooting must be focused on inspecting the drain line...

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM. Fault Code 449 is activated when the sensed rail fuel pressure exceeds for several consecutive seconds the opening pressure of the fuel pressure relief valve. Fault Code 449 is not used to indicate a fuel pressure relief valve opening. It is used to indicate a fuel pressure relief valve which fails to open or does not regulate pressure. Troubleshooting must be focused on inspecting the drain line...

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable fixes to the calibration stored in the ECM. If necessary, calibrate the ECM. This fault code will become active if there is an open circuit on any of the three pins (+5 volt supply, signal, or return) that connect the sensor or ECM to the wiring harness. This fault will also be active if the signal wire is shorted to a source of voltage. This fault code will become inactive any time the keyswitch is ON and the signal returns...

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable fixes to the calibration stored in the ECM. If necessary, calibrate the ECM. This fault code will become inactive anytime the keyswitch is ON and the signal pin of the ECM is too low. This can be caused by a short circuit to ground on the +5 volt supply or signal wire. This fault will also become active if a device that is powered by the common +5-VDC power supply is shorted to ground. This fault code will become inactive...

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe® Online for applicable fixes to the calibration stored in the ECM. If necessary, recalibrate the ECM. If inactive counts of Fault Code 471 are logged in the ECM, it can be possible that the engine was running or keyed on while tilted at an angle severe enough to cause this fault to be triggered. Other causes of Fault Code 471 can include: 1)The engine was not filled to proper capacity during the most recent oil change2)External engine oil leaks (oil leaking onto the...