P0171/po174 worries?
01-26-2016, 02:59 PM
#1
Drifting
Thread Starter
Member Since: Jan 2001
Location: palm harbor/murphy Fl/NC
Posts: 1,986
Received 184 Likes
on
137 Posts
C6 of Year Finalist (performance mods) 2019
St. Jude Donor '11, '14
P0171/po174 worries?
Every time my car gets scanned there are these 2 codes. Only happens one or twice every 100 miles.
Should I worry?
Thanks in advance for any info.
It's a sc car.
Robin
Should I worry?
Thanks in advance for any info.
It's a sc car.
Robin
01-26-2016, 05:49 PM
#2
Safety Car
yes
the codes are for your oxygen sensors and they control fueling.especially because you are supercharged you need this looked at.lean it out and that will be the end of your engine.codes indicate you are running lean on both banks
Last edited by irok; 01-26-2016 at 06:09 PM.
01-27-2016, 12:45 PM
#3
Race Director
Member Since: May 2004
Location: Raleigh, NC
Posts: 16,664
Received 1,193 Likes
on
1,052 Posts
St. Jude Donor '15
That code is for it being too lean. For this to be set some portion of your tune has to be off by 25% or more.. do not go into boost like this.
It needs to be logged and either the tune corrected or the O2 sensors replaced if there is indeed a hardware problem
Are you in NC? I'm in Greensboro if you want me to look at it
It needs to be logged and either the tune corrected or the O2 sensors replaced if there is indeed a hardware problem
Are you in NC? I'm in Greensboro if you want me to look at it
Last edited by schpenxel; 01-27-2016 at 12:48 PM.