p0171 code
March 25th, 2013, 8:10 PM
#1
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p0171 code
What could it be i know its a code saying its running to lean and i have pulled the plug on the mass flow and nothing happens and the car is running very rough please help im also thinking it could be injecters bc i had a code of cylender 2 & 5 miss fire used my obd2 and cleared the codes now just 171 code is showing does any one have any ideas
March 26th, 2013, 8:53 AM
#4
with your scan tool view the live data of the long and short term fuel trim for both banks. Do a sustained acceration; are both banks lean or just one bank?
lean condition would be +15% or more. If its on both banks, check the fuel pressure. If its one bank, check the 02 sensor for that bank.
lean condition would be +15% or more. If its on both banks, check the fuel pressure. If its one bank, check the 02 sensor for that bank.
Last edited by tech2; March 26th, 2013 at 8:56 AM.
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