THE ROVER STUTTERS &SPITS FOR A WHILE BEFORE MOVING OFF,AND DOES NOT HAVE THE POWER IT SHOULD HAVE,
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2001 Land Rover Range Rover Question: CODES PO171 &PO174 ARE ON
Answer #1mastertech6371 April 19, 2011, 10:53Master
171,174 codes are for lean running and the fuel trims are way off. many reasons for this such as low fuel pressure, vacuum leaks, bad pcv valve or mass air flow sensor.
you need a shop who can properly diag this for you and give you a bid.
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