Cobb AccessPORT Discussion
03-27-2008, 07:42 PM
#1002
has money, but unsure
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03-27-2008, 08:03 PM
#1005
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My LTFT is sitting at +14, my STFT is +-1 at idle. As soon as it hit the throttle the LTFT also drops to +-1 and pretty much stays there if I'm just cruising. I still have my Racing Beat intake on which is comming off this weekend. My fuel pump is also needing to be replaced. These combined might be why my LTFT is so far to the +. The AFR's I've seen so far look good. I've driven about 25 miles on this flash. I'm going to take it to work tomorrow and see if it comes down. If not, I'll load the v1.5a file and see what happens.
Cel
Oh, and MM, the wiggle-shove works. I haven't had one comm. error yet.
Cel
Oh, and MM, the wiggle-shove works. I haven't had one comm. error yet.
03-27-2008, 08:05 PM
#1007
Dongbag extrordinare
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03-27-2008, 08:22 PM
#1010
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Dear Jeff,
I've been on 1_0 for the last couple days. About 100km driven. Initially when I flashed the map and watched the STFT as instructed I saw about -4. Over the past couple days the LTFT is 4 and STFT is pretty much 0. Sometimes 1, sometimes -1.
So that's quite a change over a couple days. While I drive i usually see negative numbers but sometimes see positives on light load, up to -5 and 5 respectively. Should I be flashing to 1_2a?
I've been on 1_0 for the last couple days. About 100km driven. Initially when I flashed the map and watched the STFT as instructed I saw about -4. Over the past couple days the LTFT is 4 and STFT is pretty much 0. Sometimes 1, sometimes -1.
So that's quite a change over a couple days. While I drive i usually see negative numbers but sometimes see positives on light load, up to -5 and 5 respectively. Should I be flashing to 1_2a?
03-27-2008, 08:47 PM
#1012
has money, but unsure
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hmm, well from what i have read, is that the PCM makes a cycle, and in the cycle the PCM views the engine as if it were standing still (from its fast computing abilities) and is able to make changes based on the O2, TPS, MAF and other sensors and then "schedule" the time of injector pulse width, and the spark. now since the PCM can make those adjustments so fast, that it can detect the throttle back down and in turn cut the fuel based on the map supplied for load, why would it still have that little dip at the throttle back off?
i know what your doing is correct, i am just overthinking, and learning the ways of tuning.
i know what your doing is correct, i am just overthinking, and learning the ways of tuning.
