The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

bighaas79 · 11-05-2011, 08:47 PM

Would have to agree with the maf being issue here. Could be solved by either going back to original, but would probably see more benefit to a tune to allow for the higher airflow calibration in the pcm, that the improved intake system is providing. You have to remember the stock pcm is only expecting to see the airflow that would be normal for your truck. When it sees higher airflow readings coming from the maf sensor it sees this as out of the programed range and thinks there is an issue, so it sets off the codes.

11-05-2011, 08:47 PM	#3
bighaas79 Registered User Join Date: Nov 2008 Location: manly iowa Posts: 390	Re: Intake tube opinions Would have to agree with the maf being issue here. Could be solved by either going back to original, but would probably see more benefit to a tune to allow for the higher airflow calibration in the pcm, that the improved intake system is providing. You have to remember the stock pcm is only expecting to see the airflow that would be normal for your truck. When it sees higher airflow readings coming from the maf sensor it sees this as out of the programed range and thinks there is an issue, so it sets off the codes.