Question about Toyota Corolla
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Posted on Jan 02, 2017
p0171 is lean condition bank one. you could have a vacuum leak a bad map sensor bad maf sensor clogged fuel filter low fuel pressure. start with the vacuum leak first.
Posted on May 05, 2009
This is a torque converter clutch solenoid code internal to the transmission. the computer has detected a fault in the operation of the solenoid. It will need to be diagnosed by a trained technician and may very likely require internal trans repairs.
Posted on Mar 18, 2010
Testimonial: "Thank you, what is the worse it can happen if I still working as a delivery person>"
SOURCE: I got a code P040
P0401 OBD-II Trouble Code
Insufficient EGR Flow
What does that mean?
EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three parts to the EGR system: the EGR valve, an actuator solenoid, and a differential pressure sensor (DPF). These things work together to deliver the correct amount of recirculation based on engine temperature, load, etc. The P0401 code means that OBD detected an insufficient amount of EGR.
Posted on Sep 19, 2010
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