So today i got another error code. P0175. bank 2 rich. i had this isse once before but it was with P0174. i cleaned the mass air sensor and the issue went away. Any one have any ideas?
below is the data pulled from the car.


Error code P0175
Freeze Frame (Frame 0)
Fuel System Status Bank One Closed Loop
Fuel System Status Bank Two Closed Loop
Calculated Load 25 %
Coolant Temperature 205 F
Short Term Fuel Trim Bank One -3.12 %
Long Term Fuel Trim Bank One -20.28 %
Short Term Fuel Trim Bank Two -5.46 %
Long Term Fuel Trim Bank Two -20.28 %
Intake Manifold Absolute Pressure 11.5 in.hg
Engine RPM 659 r/min
Vehicle Speed 0 MPH
Intake Air Temperature 63 F Intake
Air Flow Rate From Mass Air Flow Sensor 0.93 lb/min
Absolute Throttle Position 2 %

 

This is from JTIS

IAT > 18 °F (-8 °C); drive at steady speed > 40 mph; > 1 minute
[A, M]
(DTC flagged; second trip), ECM:
– Inhibits downstream HO2S
control
If DTC P0172 is also flagged, ECM:
– Limits engine speed to
3000 rpm
– Inhibits canister purge

Prossible cause:

Blocked air filter
Fuel system return blockage
Leaking fuel injector(s)
Fuel pressure regulator failure (high fuel
pressure)
ECM receiving incorrect signal from one
or more of the following components:
ECTS, MAFS, IATS, TPS

 

Thanks GreenJewel, i have that same info. i was just wondering if any one had any ideas were to look first.

 

What did you use to gather the info from your car? I've got to get an OBDII scanner.

If you have the ability (the unit to preform this test) check the O2 sensor for that bank to see what the voltage is. The sensor might be on its way out for that bank.

 

How is the idle? steady or rough?

I have some quick recommendations you could try:
-Last time your MAF was dirty, clean it again, but this time it may have died all together.. (very common)
-Start checking your vacuum lines, you may have a leak somewhere which could be causing this.. (if there are no drivability issues its probably very small)
-You may also have a fuel pressure problem, but without an in-line gauge to check it at the rail its hard to diagnose..
-You may also have a faulty injector.. (I'm not a fan of dump-in-the-tank injector cleaners because I usually end up with fouled plugs, but its worth a shot (most agree Techron is the best).. but you may want to price out getting them professionally bench cleaned on a machine)

Good luck, Eric

 

GreenJewel, i have a autoingenuity scanner. Its totally worth the cash. If you wanna see it before you blow 400.00, let me know and we can meet up.

whiteSTR
the idle is smooth for the most part. It has had a little bit of miss at idle. I will go lookin for some vacuum lines.
As far as the fuel goes. is there a special tool required to test the pressure or is there a napa/shucks alternative i can get?