Ltft questions for you tuner guys.

[gtstorey]

Something sounds wrong if you get a long term trim of 31 without throwing a code. If new o2 sensors don't fix it, then this needs a full data log and tune review.

[Kelly@PCMofNC]

Do you have a log you can post?

The most common cause is just one sensor starting to fail. Exhaust leaks can also cause it. Misfires also but I would bet you would feel that.

[FasNuf]

Originally Posted by gtstorey

Something sounds wrong if you get a long term trim of 31 without throwing a code. If new o2 sensors don't fix it, then this needs a full data log and tune review.

I agree here Jeff. Usually +/- 25 will give a code but it's hard to know what's turned off in your tune.
After you swap the O2's if you can reset your fuel trims, that would speed the results a bit. You'll have to drive maybe a couple times on the reset to get a good idea if it switched sides and the error is following the sensor. If you don't reset the trims it will still work, but will take a little longer to swing the trims the other way.

[tartagliazl1]

Originally Posted by Kelly@PCMofNC

Do you have a log you can post?

The most common cause is just one sensor starting to fail. Exhaust leaks can also cause it. Misfires also but I would bet you would feel that.

I’m getting 0 misfires from my areoforce gauge. I’ll try too pull a log. I’m not that great with hp tuners. Might need help on how to do that.

[tartagliazl1]

Just went out and started the car, warmed her up and here are the readings now.

The only thing that has changed is the new tune from a new tuner. Could just be a coincidence.

[tartagliazl1]

I mention this to him and all he said was, it has to be mechanical.

[tartagliazl1]

I just took the sensors out cleaned them out and used a brass brush to clean them up a little. Reinstalled them in opposite sides and the long trims are now 0.3 and -2.1 seams that that might of worked. But I’ll most likely just buy new sensors anyways.

[FasNuf]

Looks normal now.

[tartagliazl1]

Finally got the p0171 and 0174 code long term fuel trim lean code. Can’t find any vacuum leaks or exhaust leaks. Took the maf sensor out and cleaned it, checked the code k22 looks like a strong sensor. So i just ordered a new maf and upstream o2 sensors. Don’t know what else to look for. Weird it took this long to throw the code while just cruising on the highway. Come to think of it my idle was erratic coming to a stop light.

[FasNuf]

What's a K22 code?

[tartagliazl1]

Originally Posted by FasNuf

What's a K22 code?

its the code stamped on the maf sensor identifying it as a strong maf sensor.

[tartagliazl1]

my MAF is reading 1.94-2.10 lb/s is this normal for idle.

[FasNuf]

So I 'm about 1.75 Lb/Min but this is also dependent on the size of the intake at the sensor. I mean velocity of air past the sensor in a 3-1/2" is faster than a 5" that would be slower.
I don't think your MAF is the issue because your code is for bank 2. The MAF would affect both banks.
I think some possibilities are a leak anywhere from the header to the sensor and about 8" or so beyond or faulty injector could do it and maybe and not throw a code, especially if dirty.
A bad O2 sensor obviously is one too.

[tartagliazl1]

my fic 1300 injectors are brand new with the new e85 flex tune that was done in spring. Header bolts are all tight. This time it was bank 1 that set the code.