Cold air intake throws check engine light

[Jordan57252]

Hey guys hoping to find a little help. I have a 5th gen 2500 with the Cummins engine and I recently installed a sinister diesel cold air intake. Very simple install and doesn’t take much to do. The new setup makes the turbo sound amazing but after driving around town for about 30 minutes I had the check engine light come up. I looked up the codes and I get P0402 and P226C. Both codes are air flow related and I am assuming it has to do with one of the two mass airflow sensors on the intake. I’ve tried disconnecting the batteries to reset everything but the light comes right back after 30 minutes of driving around. I’ve tried seeing if I can find someone with a similar problem but everyone seems to be able to install it with no issues on a stock truck. My truck is completely stock besides the intake. Any help would be great

 

[cevans6318]

have you tried contacting the company? a quick google search showed people with ford had the same issue. Also did you install the MAF sensor in the correct way?

 

[MurphBigHorn]

I’m was thinking same thing, maybe a sensor is installed backwards. Also you prob want to check the HD forum. Since no one here has that motor.

 

[Scram1500]

Make sure all the connections are fully seated, both for air and electronics. Also, did you disconnect the negative terminal from batteries before install? There may be a learning "curve" for the computer

 

[bigdodge]

Hey guys hoping to find a little help. I have a 5th gen 2500 with the Cummins engine and I recently installed a sinister diesel cold air intake. Very simple install and doesn’t take much to do. The new setup makes the turbo sound amazing but after driving around town for about 30 minutes I had the check engine light come up. I looked up the codes and I get P0402 and P226C. Both codes are air flow related and I am assuming it has to do with one of the two mass airflow sensors on the intake. I’ve tried disconnecting the batteries to reset everything but the light comes right back after 30 minutes of driving around. I’ve tried seeing if I can find someone with a similar problem but everyone seems to be able to install it with no issues on a stock truck. My truck is completely stock besides the intake. Any help would be great

might have better luck on the heavy duty forum

Ram Heavy Duty Forum

Ram Heavy Duty forum, Ram 2500 and 3500 news and information.

hdrams.com

this is mainly a 1500 forum