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P1174 Diagnostic Trouble Code Discussion for May 2014

Fuel Trim Cylinder Balance

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Trouble Ticket Help Requests for DTC P1174
Help Request Posted
1999 Land Rover Discovery Series II 4.0L MIL Lamp on VIN: SALTY1244X
Originally found that the MAF sensor was contaminated due to a K/N filter. Cleaned it and reset the adaptive memory. Got the grams per second to improve from 3.2 to 5.0. Codes returned after 2 drive cycles. Find that the fuel trims are both within 4% and both ...
May 23, 2014