Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

can the guro's look at my freescan log?

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Old Jan 5, 2007 | 04:00 PM
  #1  
dilligaf241's Avatar
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can the guro's look at my freescan log?

just wanna know how it's running, first time collecting a log while driving, just a short drive around town. how does everything look?

http://s12.quicksharing.com/v/7228033/2.csv.html
Old Jan 7, 2007 | 10:47 AM
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ttt
Old Jan 7, 2007 | 02:10 PM
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Looks OK although without looking for something specific it would be easy to miss anything.

Your PE mode fuel mixture appears to be good - they say you want to see around 880mv on the O2 sensors, and the log shows 880-900 when you hit 82% throttle.

You do show bottomed out long term fuel trims (108) in a lot places, especially in the 1500-2400 RPM range. Your VE tables could use some work to fix that (or your injector constant is wrong, or fuel pressure is higher then spec). Regarding the VE tables, if there was a transitional problem you might get stumbling around these RPMs.

So, getting your fuel mixture fixed might give you some more mileage.
Old Jan 8, 2007 | 01:22 PM
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thanks for the input, the main problem i'm having right now is a cold start issue but i think that is going to be some faulty injectors. ordering some today. the thing will flood on me, i've already checked the regulator so i'm thinking i must have some leaking injectors. could that also cause the problems with the fuel mixtures?
Old Jan 8, 2007 | 01:34 PM
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Yes, leaky injectors could cause this, but it seems unlikely (especially that more then one would fail simultaneously). I'd suggest having them tested before you buy new ones.
Old Jan 8, 2007 | 04:09 PM
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i had already ordered them before i saw you posted, but figuring that they are old anyway it probably wouldn't hurt to replace them, the ones i bought are rebuilt ones anyway. got them for a good price too.
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