Random lean condition after shift to third gear
Random lean condition after shift to third gear
Hello,
After tuning a buddy's test mule RDX on E85, I have found that right after the shift to third gear on a 1-2-3 run, the commanded injector pulse is much lower than it should be for a second or two, then richens up in an instant; whereas this is not the case in second gear or fourth gear after the shift.
At first I thought it was because the engine made more than 17psi (where the WOT Compensation table stops natively), so I edited the load index on the last column to 20psi (and made the appropriate changes to the values there), and the same issue exists.
We did not run into this on the dyno (doing third gear runs), and only see it on the street after the 2-3 shift.
Any insight on what I'm seeing here?
Thank you.
After tuning a buddy's test mule RDX on E85, I have found that right after the shift to third gear on a 1-2-3 run, the commanded injector pulse is much lower than it should be for a second or two, then richens up in an instant; whereas this is not the case in second gear or fourth gear after the shift.
At first I thought it was because the engine made more than 17psi (where the WOT Compensation table stops natively), so I edited the load index on the last column to 20psi (and made the appropriate changes to the values there), and the same issue exists.
We did not run into this on the dyno (doing third gear runs), and only see it on the street after the 2-3 shift.
Any insight on what I'm seeing here?
Thank you.
Re: Random lean condition after shift to third gear
May I email it instead of posting?
Re: Random lean condition after shift to third gear
Thank you; I have sent over the calibration and the logs.
Re: Random lean condition after shift to third gear
Can you disable live tuning and re-test?
Hondata
Re: Random lean condition after shift to third gear
Absolutely can.Hondata wrote:Can you disable live tuning and re-test?
Disable all live tables I currently have enabled?
Re: Random lean condition after shift to third gear
All live tuning tables disabled.
Same condition.
Same condition.
- Attachments
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- NoLiveTuning_Lean3rdGear.fpdl
- (30.62 KiB) Downloaded 314 times
Re: Random lean condition after shift to third gear
It is lean on spool up too. Next step is to disable the secondary o2 sensor.
Hondata
Re: Random lean condition after shift to third gear
Yeah, that's a new thing too since it came off the dyno.Hondata wrote:It is lean on spool up too. Next step is to disable the secondary o2 sensor.
Will give that a shot.
Re: Random lean condition after shift to third gear
Just checked over that file again; the secondary O2 has been disabled the whole time.Hondata wrote:It is lean on spool up too. Next step is to disable the secondary o2 sensor.
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- Posts: 35
- Joined: Wed Mar 12, 2014 4:20 pm
Re: Random rich condition after shift to third gear
i have a 3.5 inch intake and am also sufering from a random Rich condition when im at the track 2-3 shift.
- Attachments
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- good launch test.fpdl
- launch+BOG...
- (1.96 MiB) Downloaded 315 times