All,
I have recorded a couple of datalogs of my current tune and I am noticing a couple of things. My VE seems pretty good thus far, but I am still having a problem with a sudden lean condition upon acceleration (despite the fact of tuning the Accel enrichment bins)
Firstly; in the attached file "Going lean on accel.xls" @ times (2101.363 sec to 2106.450 sec) (2173.781 sec to 2175.722 sec) (2183.160 sec to 2185.658 sec) I am noticing that the AF reading drops out to 0.00 when I put the pedal to the metal. I can see the increase in PW caused by the accel enrichments; but it doesn't seem to stay on long enough to counteract the enleanment. Should I 1) increase the VE bins in the corresponding areas, 2) Increase the accel enrichment duration, or 3) keep the duration the same and increase the accel enrichment bins??
Secondly; in the attached file "PW spikes and odd behavior.xls" @ times (145.936 sec to 147.015 sec) (169.942 sec to 175.414 sec) I am noticing that the PW actually fluctuates a little as it increases on accelleration enrichment. Is this normal? My gut is also telling me that the PW behavior @ (169.942 sec to 175.414 sec) is indicative that the accel enrichment duration needs to be increased further (a couple seconds?). Is this interpretation correct or do I really need to take a closer look at the VE bins?
(Both of the datalogs are of me tooling along on the highway at 65 to 75 mph @ cruise. I blipped the throttle a number of times and then returned to cruise)
All help would be greatly appreciated!!
Thanks everyone!
- Jesse[/b]
Datalog questions - several issues.
Forum rules
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
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Bernard Fife
- Super Squirter
- Posts: 1009
- Joined: Mon Feb 16, 2004 3:15 pm
Jesse,
For the first part, I would try all three methods to see which works best. My guess is that #2 (increase the duration) is what you want.
For the second part, I would guess you are seeing accel tapering, though I don't know how this is implemented in MSnS-E. Increasing the accel duration ought to help, though.
Hwever, I wouldn't tune accel against the EGO output, but rather use your 'seat of the pants' to get the best response.
Lance.
For the first part, I would try all three methods to see which works best. My guess is that #2 (increase the duration) is what you want.
For the second part, I would guess you are seeing accel tapering, though I don't know how this is implemented in MSnS-E. Increasing the accel duration ought to help, though.
Hwever, I wouldn't tune accel against the EGO output, but rather use your 'seat of the pants' to get the best response.
Lance.