 Re: Hesitating shifts
I know what you are saying, yes the pcm table stops at 11500 but that doesnt mean you need an AFC to tune the car, again they dont even sell them anymore because it is not needed to tune the car and you dont need the maf table only to rely on WOT fueling. How high does the sensor actually read??? Good question, but as I mentioned a few times before keep in mind that you have to rescale your entire MAF table to compensate for this if you make the input value lower with the AFC. ALL of your fuel trims will be wrong except in PE mode where it doesnt use them, but once you lower your maf input then the car will run excesively lean since you will have to lower the signal a bit, and then you have to go into other tables to add fuel anyways so why waste time with an AFC? You have a tuner and again the maf table is not the only thing to use for WOT fueling. Buick GNs max out the maf often when only at half throttle or not anywhere near peak boost and rpms but is not a problem because proper tuning corrects this. Once the maf input is at the max of what the pcm can read then the maf value will continue to climb but the pcm only uses the last highest point on the table. If you want to use the AFC to help your problem that is fine and you will have a lot of work making fuel trims and WOT fueling correct again, I am just trying to make you realize that it is not necessary and that the vendors dont use them anymore because it can all be done in the tuner. |