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It’s new to me purchased a week ago and the check engine light popped up a couple days ago. It has 82,000 miles The code is P115D - Mass Air Flow Circuit Offset. I couldn’t find any Land Rover information anywhere regarding it... I did find a 115 page Jaguar engine PDF that wasn’t any help. Any assistance is appreciated.
-Mahalo
 

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This code is typically set when the engine air flow reading does not match what the computer expects based on throttle position, engine speed and transmission gear selection. You might try gently disconnecting and reconnecting the electrical connector, and cleaning the sensor using a SAFE cleaning spray. Ray[h=3]RangeRovers.net Forum[/h]
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[/URL]um measured does not correspond to the calculated vacuum, or manifold pressure. Calculated pressure is determined by the ECM, using throttle position, engine speed, and gear selection on the transmission. You might try seating the connector by gently disconnecting it and reconnecting it.
 
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