trinydex
01-27-2007, 12:50 AM
Folks,
Been working on tuning my idle and startup with hks 272's at -2i -1e. Followed the guide on evoM and raised the target idle speed and have been bumping up the timing. Once the car is warm enough to go open loop the idle is just dandy and the timing numbers seem to come straight from the high octane ignition map.
However, when the car has been sitting long enough to cool down to ambient temps, the timing is jumping all over the place during warmup. I logged a bit last night and saw that it looked to be pulling numbers from the 80% load column, while the ecuload was reading 40% or so. I'm thinking that the obdII / MUT value for load is not updated fast enough and the load is actually jumping from 40 - 80 and back.
Here is a sample:
RPM FuelTrim_Low InjPulseWidth AFRMAP TPS ISCSteps KnockSum TimingAdv
1281.25 98.44 2.048 128 14.51 83 0 10
1281.25 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 12
1250.00 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 11
1250.00 98.44 2.048 128 14.51 83 0 13
1281.25 98.44 2.048 128 14.51 83 0 10
1281.25 98.44 2.048 128 14.51 83 0 8
1281.25 98.44 2.048 128 14.51 83 0 14
1312.50 98.44 2.048 128 14.51 83 0 11
1281.25 98.44 2.048 128 14.51 83 0 11
1312.50 98.44 2.048 128 14.51 83 0 9
1312.50 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 12
1312.50 98.44 2.048 128 14.51 83 0 11
1312.50 98.44 2.048 128 14.51 84 0 10
1312.50 98.44 2.048 128 14.51 83 0 12
1312.50 98.44 2.048 128 14.51 83 0 12
1343.75 98.44 2.048 128 14.51 83 0 11
you can take a look at the attached partial screen shot of the highoctane map...
Been working on tuning my idle and startup with hks 272's at -2i -1e. Followed the guide on evoM and raised the target idle speed and have been bumping up the timing. Once the car is warm enough to go open loop the idle is just dandy and the timing numbers seem to come straight from the high octane ignition map.
However, when the car has been sitting long enough to cool down to ambient temps, the timing is jumping all over the place during warmup. I logged a bit last night and saw that it looked to be pulling numbers from the 80% load column, while the ecuload was reading 40% or so. I'm thinking that the obdII / MUT value for load is not updated fast enough and the load is actually jumping from 40 - 80 and back.
Here is a sample:
RPM FuelTrim_Low InjPulseWidth AFRMAP TPS ISCSteps KnockSum TimingAdv
1281.25 98.44 2.048 128 14.51 83 0 10
1281.25 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 12
1250.00 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 11
1250.00 98.44 2.048 128 14.51 83 0 13
1281.25 98.44 2.048 128 14.51 83 0 10
1281.25 98.44 2.048 128 14.51 83 0 8
1281.25 98.44 2.048 128 14.51 83 0 14
1312.50 98.44 2.048 128 14.51 83 0 11
1281.25 98.44 2.048 128 14.51 83 0 11
1312.50 98.44 2.048 128 14.51 83 0 9
1312.50 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 9
1281.25 98.44 2.048 128 14.51 83 0 12
1312.50 98.44 2.048 128 14.51 83 0 11
1312.50 98.44 2.048 128 14.51 84 0 10
1312.50 98.44 2.048 128 14.51 83 0 12
1312.50 98.44 2.048 128 14.51 83 0 12
1343.75 98.44 2.048 128 14.51 83 0 11
you can take a look at the attached partial screen shot of the highoctane map...