Confirmed: Evo ROM Can Be Flashed to Lancer ECU
Aug 7, 2012, 08:13 PM
#661
What you posted in the video is the same thing i see when i load my maf based evo tephra rom and i don't see it on my non-tephra lancer rom. I'd like to try a non-tephra evo rom and see if its makes a difference but wont be able to do any more testing till i get my rebuilt steering column back in the car and this pesky leak on my new steering rack fixed. "Silly Banjo bolts, leaks are for Honda's! =(
Last edited by Live4Redline; Aug 7, 2012 at 08:16 PM.
Aug 7, 2012, 08:18 PM
#662
What you posted in the video is the same thing i see when i load my maf based evo tephra rom and i don't see it on my non-tephra lancer rom. I'd like to try a non-tephra evo rom and see if its makes a difference but wont be able to do any more testing till i get my rebuilt steering column back in the car and this pesky leak on my new steering rack fixed. "Silly Banjo bolts, leaks are for Honda's! =(
Aug 7, 2012, 08:24 PM
#663
And no matter what maf + scalings i used the issue was still there. The 605, 501 and 399 mafs (the 399 had additional issues on my NA car unrelated to the idle).
I'm half tempted to make my own video because its pretty obvious that its the same issue in both cases. What ever that issue might be, tephra or evo rom related.
Last edited by Live4Redline; Aug 7, 2012 at 08:31 PM.
Aug 7, 2012, 08:51 PM
#664
Yes.
And no matter what maf + scalings i used the issue was still there. The 605, 501 and 399 mafs (the 399 had additional issues on my NA car unrelated to the idle).
I'm half tempted to make my own video because its pretty obvious that its the same issue in both cases. What ever that issue might be, tephra or evo rom related.
And no matter what maf + scalings i used the issue was still there. The 605, 501 and 399 mafs (the 399 had additional issues on my NA car unrelated to the idle).
I'm half tempted to make my own video because its pretty obvious that its the same issue in both cases. What ever that issue might be, tephra or evo rom related.
. I would rather have the knock light and a little idle annoyance than a smooth idle and no knock light.
Aug 8, 2012, 08:31 AM
#667
BTW what did your idle hz get up to? Normally in the evo you see something like 30-35hz at minimum idle.
Aug 8, 2012, 01:39 PM
#668
As far as what I actually changed I raised the 19hz row from 148 to 152 and 25hz row from 155 to 160, not sure if that is enough I have only made one change thus far.
Last edited by 03lances; Aug 8, 2012 at 01:42 PM.
Aug 8, 2012, 03:51 PM
#669
I havent actually logged my idle since I made the switch I just did a quick flash and checked it out. I plan on doing some logging. I have a good log of the dips I made back in may. I logged pretty much everything I could. I was getting about 5 samples a second. Question is if its fuel cut shouldnt my logs at some point show ipw drop to 0 for a split second? There is not anything in the log showing that. The ipw fluctuates during the dips but I imagine thats just the computer trying to compensate and stabilze the idle.
As far as what I actually changed I raised the 19hz row from 148 to 152 and 25hz row from 155 to 160, not sure if that is enough I have only made one change thus far.
As far as what I actually changed I raised the 19hz row from 148 to 152 and 25hz row from 155 to 160, not sure if that is enough I have only made one change thus far.
But what i've been meaning to say is normal idle LOAD is between 30-35 for an evo and when it dips to something like 20 load it seemed to do a decel fuel cut. Sorry about that confusion
Aug 8, 2012, 07:48 PM
#670
I pulled my biss out and cleaned it up, My idle is sitting at 25hz :-/. Nothing in the logs are indicating the car is cutting fuel or spark yet it dips. When I turn on the actuator to lock the stepper motor it REALLY dips, doesnt die but damn close to it. I logged the ISCV trims while I adjusted the biss. How often does the ISCV trims change? Its pretty close within +/- 1% but that may change as I let it idle longer idk yet.
Aug 8, 2012, 09:06 PM
#671
I pulled my biss out and cleaned it up, My idle is sitting at 25hz :-/. Nothing in the logs are indicating the car is cutting fuel or spark yet it dips. When I turn on the actuator to lock the stepper motor it REALLY dips, doesnt die but damn close to it. I logged the ISCV trims while I adjusted the biss. How often does the ISCV trims change? Its pretty close within +/- 1% but that may change as I let it idle longer idk yet.
As long as you get your idle close with the biss screw it will really improve the idle. Especially if the IAC is at fault for the sudden dips. The computer uses two types of adjustment to control idle.
First is the obvious IAC controller which just meters air in and out but lesser known is the computer actually bumps the idle timing around trying to get the idle to the right point.
SAS mode puts all that on hold which is what makes it really useful when setting the idle. It slaps a default value into the IAC and the timing so you can really hear what the idle would do naturally.
Aug 9, 2012, 11:33 AM
#672
Not sure on the trims and you probably know whats below but this will help others.
As long as you get your idle close with the biss screw it will really improve the idle. Especially if the IAC is at fault for the sudden dips. The computer uses two types of adjustment to control idle.
First is the obvious IAC controller which just meters air in and out but lesser known is the computer actually bumps the idle timing around trying to get the idle to the right point.
SAS mode puts all that on hold which is what makes it really useful when setting the idle. It slaps a default value into the IAC and the timing so you can really hear what the idle would do naturally.
As long as you get your idle close with the biss screw it will really improve the idle. Especially if the IAC is at fault for the sudden dips. The computer uses two types of adjustment to control idle.
First is the obvious IAC controller which just meters air in and out but lesser known is the computer actually bumps the idle timing around trying to get the idle to the right point.
SAS mode puts all that on hold which is what makes it really useful when setting the idle. It slaps a default value into the IAC and the timing so you can really hear what the idle would do naturally.
Aug 9, 2012, 02:47 PM
#673
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So that means if you have SAS enabled, and it still dips, that it's nothing to do with the car auto adjusting the ISCV steps or idle, it's something else. Does the timing stay constant with BISS enabled? Is the dip consistent, like every 5 seconds or anything?
Aug 9, 2012, 04:48 PM
#674
Update: So I played around with my biss to stabilized the idle a little better than it was. When you change the idle rpm settings in the table how soon should I expect to wait before it adjust? Reason being is I one by one made all the values 600 rpms in each table, flashing it each time, As of now I have every rpm value in every table set to 600 and yet it still idles at 900 lmao.
Last edited by 03lances; Aug 9, 2012 at 05:15 PM.
Aug 9, 2012, 05:00 PM
#675
All you should be worried about in SAS mode is getting the idle somewhat close to the idle you want it to be without sas mode on.
BTW have you tried just simply upping your idle? To something like 800rpm? I know the base lancer is supposed to be lower but it would be an interesting test.