Is it forcing you to do a complete manual regen, or just a 10 min regen? If it's taking ~45 min or more, then something is wrong. If it's just the 10 min. regen, we get that almost every time the our drivers idle all night on the MX13 engines.
DEF issues
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Emmett4540, Jul 31, 2018.
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BoostedTeg Thanks this.
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But will not do one on PTO fast idle. -
Regen trigger sensors are "failsafe" in that if they fail, the truck will want to regen repeatedly rather than the sensor failure causing the truck to never trigger a regen. The indicator the sensor has failed IS the multiple, repeated regen requests.
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It's more often a condition of the fault coming active that inhibits regens. So let's say you have a wiring rub for a dpf temp sensor. When the fault is active it will not allow a regeneration to take place to "failsafe or protect" the system. Once the fault is inactive and the ECM/ACM sees all the sensors as rational again the regen process will begin again. With a wiring rub this can be very intermittent and may try to regen every hour or until the issue is resolved. Just depends on the fault conditions. -
Fort Lauderdale FL you mail your ecu to them tell them what all you want done and they mail it back to you all in 48 hours
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