SOURCE: I have a 2005 Jeep Cherokee Laredo. Diagnostic
Implausible Fuel Volume Signal Received
This usually points to a bad PCM (powertrain control module).
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SOURCE: what does the code U1411 mean on my 2005 Jeep
This is usually an idicator that the heating element located inside the o2 sensor is defective, requiring an O2 sensor replacement. Other tests can be performed if this is not the exact cause, but are not able to be performed with out a scan tool.
I would replace the O2 sensor at this point
Theory of Operation
This diagnostic provides a continuous check of the O2 heater circuit during operation. The heater circuit is momentarily disabled to allow a resistance measurement to be taken to infer heater temperature. The current delivery to the heater is duty cycled to maintain a specific target temperature. The error from the target temperature is continuously monitored to assess heater performance.
SOURCE: 2006 jeep commander check engine light coming on
implausible fuel signal i fould this at canobd2.com
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