P0171, P0174, and P0410 Codes
Thread Starter
Staging Lane
Joined: May 2013
Posts: 60
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From: Western Kentucky
P0171, P0174, and P0410 Codes I'm not really familiar with all the codes and stuff but I've looked them up. The question is, has anybody had all three of these codes at one time and know what the problem is? I honestly have no idea where to start and I have read some threads about the codes and stuff but still not 100% sure what it could be. I know it could a few different things but maybe one of you have had all the same codes and could steer me in the right direction. I'm trying to make this as painless as possible for my dad and I to tackle some weekend. Thanks in advance guys.
P0171 & P0174 are lean codes. DTC P0410 is for air injection problem, and will not set if your other codes are present, so obviously it occurred first. Chances are when you track down the P0410 problem it will also solve the others.
http://www.obd-codes.com/p0410
the air pump pumps air into the exhaust on startup to help heat up your catalytic converters, then shuts off. there's a solenoid that closes and prevents air leakage into the exhaust, it's this solenoid that's stuck open or leaking air into the exhaust which set the lean codes p0171/4. not sure if you can replace just that little solenoid or if you have to replace the entire pump. but like the link said if water gets back into the pump you might need a new air pump, which is not uncommon. the air pump is behind the front bumper below the headlight assembly, i think on the passenger side of car.
the air pump pumps air into the exhaust on startup to help heat up your catalytic converters, then shuts off. there's a solenoid that closes and prevents air leakage into the exhaust, it's this solenoid that's stuck open or leaking air into the exhaust which set the lean codes p0171/4. not sure if you can replace just that little solenoid or if you have to replace the entire pump. but like the link said if water gets back into the pump you might need a new air pump, which is not uncommon. the air pump is behind the front bumper below the headlight assembly, i think on the passenger side of car.
