Jul
The check engine light came up on my catera and took it Autozone and Advance Auto parts. They scanned it and this what it shows P0171 & P0174. Details below….
P0171: The PCM has determined that during testing, the fuel system bank 1 was too lean. (Bank #1 indentifies that the location of cylinder 1, while bank 2 identifies the cylinders on the opposite bank).
Probable causes:
1. If bank 1 & 2 codes set together suspect fuel pressure or MAF sensor.
2. Oxygen sensor
3. Ignition misfire
4. Fuel injector
P0174: The PCM has determined that during testing, the fuel system for bank 2 was too lean.
Probable causes:
1. If bank 1 & 2 codes are set together suspect a fuel condition or MAF sensor.
2. Failed H02S21
3. Ignition misfire condition
4. Fuel injector
5. Engine mechanical condition.
The guys at the store said it could be the fuel filter. Any idea what could be the exact problem? I'm thinkng O2 sensor but I could be wrong.
Answer:
well 90% of the time that is the first thing to change that and a bottle of fuel treatment….. so when was the last time you replace the fuel filter shoul d be done once a year and fuel treatment each few months or so… both cost like 10 bucks and easy
Answer:
How do you find if there’s a vacuum leak? And also I have notice that after driving for a while and putting the car in park the RPM goes way up to around 2000. Any idea what could be the cause? Report Abuse
Answer:
Ok, forget the fuel filter. The guys at AZ are idiots, thats why they are working there. Anyways what sets that code off usually is either a vacuum leak of some type, or either a failed o2 sensor. If you’ve a misfire on that Catera generally you will know it. You're gas mileage is probaly kinda crappy so start for looking for a vacuum leak. No leaks chances are it's probaly a failed o2 sensor. Good Luck. Book Mark it-> del.icio.us | Reddit | Slashdot | Digg | Facebook | Technorati | Google | StumbleUpon | Window Live | Tailrank | Furl | Netscape | Yahoo | BlinkList