iceman8891

I am upgrading to a Volant cold air intake from the little stock one. Will this mess with the air/fuel mix to the point of throwing error codes? Is it something to adjust for?

Chrisingermany

No, as the MAF sensor will account for any added air you feed into the engine.

iceman8891

Thank You, now I won't hesitate to pull the trigger and get it.

carguy2012

no all monitored and regulated by computer.. actually when you first do it car feels insanly quick and repsonsive and then over time computer gets use to it..and so do you..lol

SouthernRex

I think if you get it tuned for it, though, it works better for you.

RPM WS6

iTrader: (3)

The car will not feel insanely quick from a simple cold air kit, unless said "cold air kit" is N2O.

Tuning would show little to no improvement for such a basic modification on an otherwise stock car.

SouthernRex

Doesn't tuning improve a completely stock car? I don't see how improving airflow would hurt with the car being tuned in general.

HCI2000SS

iTrader: (2)

I think what RPM is saying is that tuning for the CAI specifically will show little improvement. Of course a tune on its own will be worth it. That's how I'm interpreting it at least

RevGTO

iTrader: (12)

The question is, what do you mean by "tuning"? What would you "tune" on a stock car? Regarding "airflow", the only thing you can really tune is to insure that your actual AFR matches commanded, which means basically having your MAF and VE tables dialed in. And you can work your PE to make sure your WOT AFR is where you want it. But having a CAI makes no difference to any of that, because your MAF and IAT measure aiflow and temp and the PCM then calculates fueling.

RPM WS6

iTrader: (3)

Exactly correct. This is not a modification that will benefit from a specific custom tune/retune for it alone.

SouthernRex

Are there ANY cars that benefit from retuning after CAI? Like the airflow is too much to throw off AFR or that timing can benefit from increased airflow? And I mean proper CAI with shorter tube and sealed box etc.

SouthernRex

Because I know when my buddy put a CAI on his Grand Prix (3800 Gen III) it ran like garbage until he got it tuned.

RPM WS6

iTrader: (3)

In terms of a naturally aspirated setup, there really isn't anything you can do in front of the MAF for which the MAF and IAT sensors can't compensate. A cold air kit/air lid/ram air kit or any other sort of changes to the air box or inlet ducting is not a macro modification which requires any sort of hard tuning changes to offer maximum benefits.

Now, if said kit causes the location of certain sensors to be moved (such as the IAT), and/or also creates changes to the MAF sensor (such as different ends or something like this) or areas behind the sensor, then some tuning adjustments might be needed to compensate/correct for such. Beyond any of that, if a car runs like garbage on the stock tune after a CAI swap then there is some other issue. This would be akin to installing a catback exhaust and then having the car run like garbage on the stock tune - that just doesn't happen because the change was made well behind the O2 sensors. Things like a catback and cold air/airbox kit don't need a specific tune, nor will you see any significant gain if retuning specifically (and only) for such, notwithstanding any optimization of the stock tune which may or may not have already been done.

No idea what happened with your friend's GP, but I'm not sure what you mean by a "shorter tube". Often, a CAI includes a *longer* tube to reach further from the engine compartment for a cold air source - but that tube is in front of the filter and well in front of the MAF. Did he make any changes to the MAF or MAF placement as part of the kit, and/or possibly contaminate the sensor during install? Did he use an oiled air filter such as a K&N?

Personally, I've never known anyone who needed a specific retune to get the car running right again after any sort of air box/air ducting replacement, and/or to see maximum benefit from such.

98CayenneT/A

Imo the only thing that would be worth a tune on a stock car would be if you were a automatic. It really does wonders on a automatic with the amount of Torque management in these things.

SouthernRex

I think I meant smoother not shorter, (although I have seen some SHORT CAI set ups) but yes it had a K&N oiled filter at the end. He didn't re-oil it himself, but would the factory oiling potentially have contaminated the MAF? Also, yeah I'm pretty sure the IAT was moved. The MAF wasn't touched I don't think. This was 8 years ago, so I'm going on memory here.

carguy2012

Really? When I added my CAI on my 99 v6 camaro its sounded amazing from the engine it had the Y87 performance package and was super responsive. Over time though either I got use to it or the computer level things out. Best thing I did for the car. Mine was V6 3800 series II engine though with KN Filter too.