Basemap tune throwing p0171

[tgd360]

I was running the stock tuned for a couple of days and no issue but I do have a CAI and exhaust with cat back when I tried one of those the car ran amazing but now it's throwing a P0171 code? Any ideas? I'd like to use that one as the car runs and drives amazingly

[Spunkster]

If you are getting that error it is running too lean and probably has really high fuel trims. You probably need to tune the AFM for the intake you have.

[tgd360]

Sorry I'm still super new to doing any of this but wouldn't running lean mean too much air not enough gas?

[Spunkster]

correct

[tgd360]

This is the data log I had running for about 20 or so minutes on the stock,tuned based like i said i do have a drop in high flow air filter and a exhaust with catback exhaust. But when selecting that i started throwing a lean code should i just stick with a stock tuned tune until i can learn a little bit more about tuning?

[CalibratEd]

This is the data log I had running for about 20 or so minutes on the stock,tuned based like i said i do have a drop in high flow air filter and a exhaust with catback exhaust. But when selecting that i started throwing a lean code should i just stick with a stock tuned tune until i can learn a little bit more about tuning?

Stick to whatever is not causing issues until you learn what changes need to be made.

-Ed

[tgd360]

I switched back drove for all of today car sat while i was at work after about 5 minutes of running it started running lean again while warming up not really sure what i should adjust to get that top stop.

[Hondata]

Something is very wrong - it could be the fuel pressure being low or the AFM is faulty but since you have put on a CAI I would uninstall it. Trims are over 50%. I'd park the car until you can fix it.

[tgd360]

Someone gave me the new kit and i used to have a k&n filter on it could that possibly be the issue it does look like a cheapy air filter. (Edit if I blow on the filter in there the engine starts to run rough for half a second.)

[tgd360]

Could it be that its just some cheap air filter that is letting in to much air and its causing that lean code?

[tgd360]

Or Could be it be the basemap tune im using I guess i got ahead of myself and downloaded the stock tuned before i knew if that was a good idea or not.

[Spunkster]

If blowing on the intake is causing it to run differently, then there is a problem with the intake. I would recommend using the OEM intake instead.

[tgd360]

Blowing on the actual air filter itself not the intake sorry for not specifying. Just confirmed no vacuum leaks either.

[tgd360]

OK so i just realized all the tunes available to select on the hondata are pretty much the same no matter what sooooo as previously stated i am new to this and did not realize these were not set to go tunes and they needed to cahange the calibrations because all i did was upload the stock, tuned and change the idle up to 850 and the vtech parameters. Apologies to everyone that tried to help i unfortunately do not know what i am doing.

[CalibratEd]

OK so i just realized all the tunes available to select on the hondata are pretty much the same no matter what sooooo as previously stated i am new to this and did not realize these were not set to go tunes and they needed to cahange the calibrations because all i did was upload the stock, tuned and change the idle up to 850 and the vtech parameters. Apologies to everyone that tried to help i unfortunately do not know what i am doing.

The Hondata calibration are designed to be drivable. There are so many combination of parts so it not possible for them to have a calibration for each combination.

One of the mods that will affect the tune the most is the intake. If you install your stock I take back on the car should not run as rough. Is you’re trying to learn to tune I suggest you do some reading and dial in the car with the exhaust. After you get a better understanding install the intake. Look up some video on YouTube.

-Ed