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U1411-IMPLAUSIBLE FUEL VOLUME SIGNAL RECEIVED
Theory of Operation The Front Control Module isn't receiving a fuel volume signal over CAN B from the Cluster Module. The FCM has to send the PCM a fuel volume signal over CAN C. The signal the FCM sends over CAN C is implausible.
Unfortunately, to properly diagnose this problem, you will need access to advanced diagnostic tools. It isn't something easily fixed by a do-it-yourself'er.
no cold air blowing out when ac is on but low pressure