P1171 and P1174 are OBD-II trouble codes related to fuel trim issues in vehicles, typically indicating a problem with the air-fuel mixture. P1171 usually refers to a lean condition in bank 1, meaning there is too much air or not enough fuel in that bank of the engine. Similarly, P1174 indicates a lean condition for bank 2. These codes can be triggered by various factors, including vacuum leaks, faulty fuel injectors, or issues with the mass air flow sensor.
gas and air flow meter
No, it will not.
Lean Condition caused by bad or restricted injectors
p300 is a misfire
You need a OBD 2 scanner/reader to erase the codes
Yes you need all OBD codes clear to pass testing
You need an OBD scanner or take it to your local Auto Parts store. Stores like Advance auto parts can usually read codes for you. The generic codes they read out can be converted to Volvo's OBD codes. The generic codes usually start with the letter P.
Once erased, the codes are gone.
OBD codes that start with a P are power train codes.
If you want the OBD codes, try this site: http://autorepair.about.com/library/ts/obd-i/bl-dtcs-63a.htm?once=true&
obd (1) codes are generic, same for all domestic obd(1) two or three digit codes
engine light just came on in my g6 2007 code p1174