Airaid CAI and less performance

[FlyFlip420]

I installed an Airaid 202-111 on my 2015 Yukon Denali, but, it doesn't seem as responsive anymore when it should have become more responsive. It seems to be holding the shifts longer, and taking longer to grab when the pedal is hit. The engine revs, but the car doesn't just go for a couple seconds. And it's not shifting right, it's holding shifts too long and over revving. I've had other cai on different cars and they didn't have issues like that. It also doesn't have the growl until higher rpms.

What's going on? Is there a leak? Something wrong with the unit??

Anyone have any ideas?

 

[Learning]

All sensors are still there?

 

[FlyFlip420]

Yep, not sure if the computer has to adapt or what

 

[JennaBear]

Are you tuned for the intake?

 

[FlyFlip420]

Are you tuned for the intake?

No, how would I do that? Never done that before and didn't see that it was necessary in any research

 

[JennaBear]

The ECM is calibrated for the MAF sensor being located in the factory air box and configuration. When you change that setup, the MAF sensor can often read more air or less air than is actually entering the engine. That discrepancy impacts the ECM's torque calculations, throttle mapping, fuel delivery and ignition timing. The result can be as mild as a throttle that is less responsive than it was before at light to mid throttle, but makes comparable power at heavy throttle to a situation where the engine is pinging mildly, causing a retardation of performance.

 

[FlyFlip420]

The ECM is calibrated for the MAF sensor being located in the factory air box and configuration. When you change that setup, the MAF sensor can often read more air or less air than is actually entering the engine. That discrepancy impacts the ECM's torque calculations, throttle mapping, fuel delivery and ignition timing. The result can be as mild as a throttle that is less responsive than it was before at light to mid throttle, but makes comparable power at heavy throttle to a situation where the engine is pinging mildly, causing a retardation of performance.

Makes sense. Wouldn't the computer adjust after X miles? What's a tune cost and where?

 

[ISU-152]

Makes sense. Wouldn't the computer adjust after X miles? What's a tune cost and where?

Could try removing negative battery cable for 10

 

[Fifty]

The computer can only adjust so much. If you look inside the stock airbox there are little "wings" that "condition the air" before it hits the sensor. The air raid does not have these so the sensor reads there a little bit different with the aftermarket intake

 

[JennaBear]

The computer doesn't know how to adjust for the airflow discrepancy other than to correct fuel delivery. That does nothing for the torque calculations, throttle mapping or ignition timing.