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P0173 Diagnostic Trouble Code Discussion for December 2011

Fuel Trim Lean Or Rich (Bank 2)

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Trouble Ticket Help Requests for DTC P0173
Help Request Posted
2003 Land Rover Discovery SE 4.6L MIL Lamp on VIN: SALTY16413
P0173: 4th gear ratio monitoring. Normally, these faults are a sure sign of a failed MAF. However, the problem has re-occurred after a while after multiple MAF replacements. Through all of this, the truck runs and drives fine, but we can't seem to get the faults to go away. Anyone else run...
December 12, 2011