Check Engine Light Turbo Warning

[Joe Parkes]

I just replaced the stock Air Filter with a K&N replacement. Now every 400 miles i am getting a hard turbo code. I have reset it a couple of times and it comes back. It was back on for a day now, I started up the truck this morning and the check engine light was not illuminated.
I am wondering if the alarm is being caused by the greater air flow?

 

[Dennis Shellito]

Maybe you should put the factory air filtration system back on the truck as it is capable of filtering enough air for the engine. I have an S&B cold air intake on my Cummins and am considering putting the factory air box back. I installed the S&B because at the time the replacement filters were so expensive, but now they can be bought very reasonable. I wouldn't have the hassle of cleaning and oiling a filter after every change.