Flash ECU

[QuickTop]

quick question, is it necessary to flash the ECU after a cold air intake install?
Thanks, Bryan

[Fox Slaughter]

Eh not really but it would be better. More air will get in and so you might need to add a bit more fuel. Most people don't.

[hoogiesngrinderz]

MAF should compensate for the difference

[meissen]

MAF should compensate. When I did my CAI on my 2012, they recommended disconnecting the battery for 30 seconds to allow the fuel trims to get reset. I didn't though... it just means it takes awhile longer for the computer to get the average right.

[Fox Slaughter]

The problem is once you get so far in modifications its needed because the MAF will be out of calibration. Gregrob (LS1Tech) and I discussed this in a thread that when running a MAF it needs to be recalibrate with modifications. This is why companies sell two MAFs, one thats normal, and one that is tuned for CAI. Solomon also states that you must edit the MAF tables.

[hoogiesngrinderz]

The problem is once you get so far in modifications its needed because the MAF will be out of calibration. Gregrob (LS1Tech) and I discussed this in a thread that when running a MAF it needs to be recalibrate with modifications. This is why companies sell two MAFs, one thats normal, and one that is tuned for CAI. Solomon also states that you must edit the MAF tables.

a MAF is a MAF, they just measure flow. Adjustable MAF's allow a change to the the output voltage to trick the computer into thinking there is more or less air flow (usually more) to bump to a different cell on the fuel table. The best way to do this is in the fuel table itself so the MAF voltage doesn't max too soon and cause a lean WOT condition or reduce the resolution.

MAF systems can handle 10-15% change. Best way to check is to see where the long term trims are at.

[QuickTop]

alright thanks guys!