986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - jfmiller, earlier you said that you had your ecu tweeked to accomodate your upgrades,

jfmillr · 11-29-2003, 06:24 AM

It is true that the ECU is a learning system, but once you modify all of the stock components to aftermarket it does change how air is coming into the engine and in turn fuel/air mixtures will go off. thats why a lot of techs dont like doing upgrades to vehicles without using a Dyno to tweak air/fuel mixtures.
The reason I suggest it and have done it 3 times in two years is because I want the car to run right.....and not trust what Porsche thinks the ECU should be doing, thats why its called tweaking.
And FYI the learning ECU only does so much, it ultimatly needs to be modified to see peak performance.

11-29-2003, 06:24 AM	#2
jfmillr Registered User Join Date: Mar 2003 Location: Alexandria, VA (PCA Potomac Region) Posts: 384	It is true that the ECU is a learning system, but once you modify all of the stock components to aftermarket it does change how air is coming into the engine and in turn fuel/air mixtures will go off. thats why a lot of techs dont like doing upgrades to vehicles without using a Dyno to tweak air/fuel mixtures. The reason I suggest it and have done it 3 times in two years is because I want the car to run right.....and not trust what Porsche thinks the ECU should be doing, thats why its called tweaking. And FYI the learning ECU only does so much, it ultimatly needs to be modified to see peak performance.