Audi P117C: Post Catalyst Fuel Trim System Too Lean Bank 3

Is your scanner showing Audi P117C?
No worries. We'll show you what it means and how to deal with it.

Presented by
Randy Worner

Audi P117C: Post Catalyst Fuel Trim System Too Lean Bank 3

OVERVIEW
Severity
:
High
DIY Difficulty Level
:
Intermediate
Repair Cost
:
$80-$380
Can I Still Drive?
:
Yes

What Does The Audi P117C Code Mean?

Lambda control, Closed loop Lambda control post cat, Closed loop O2S front, Ready, No DTC O2S rear, Ready, No DTC Engine load changes, < 7% Lambda set point, 1 Catalyst temperature, 350.. .850° C Engine speed, 1360.. .3920 RPM Engine load, 20.. .70% Mass air flow, 15.. .60 kg/h

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> A-Premium O2 Oxygen Sensor
>>> MANN-FILTER WK 69 Fuel Filter
>>> Fuel Pump Module Assembly for 2009 2010 2011 2012 Audi Q5
>>> Fuel Pressure Regulator Compatible with 1995-2006 AUDI A4 A6 A8
>>> EPSIRMP 06H906036G 4pcs Fuel Injectors Compatible with Audi A3 A4 A5 A6 Q3 Q5 TT
>>> FEL-PRO MS 96116 Exhaust Manifold Gasket Set
>>> Audi catalytic converter
>>> FAERSI Mass Air Flow Sensor Sensor
>>> Autobahn88 Silicone Vacuum Hose Dress Up DIY Kit
>>> Vacuum Connector Assortment,Automotive Vacuum Tubing Connector

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

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