imolasb5
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« on: July 06, 2012, 02:05:19 PM »
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Hey guys, I took the plunge this week and switched to E85. I absolutely love it and I am pretty pissed I didn't do it sooner. Anyways, I was wondering if anyone has had some success, tips, or tricks on getting a better startup. I have tried a few little things to not much success. I have tried tripling FKSTT_1_A and FKSTT_0_A as well as tripling KFHSTT. I also tried adding a little in KZWWLNM (not sure if that even has anything to do with it). It seems that it has gotten a little better, but by no means is very good. Any input is greatly appreciated.
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phila_dot
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« Reply #1 on: July 06, 2012, 05:17:04 PM »
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It looks like multi-spark ignition is available in ME7.1 and can be enabled. It has been awhile since I have looked at it but it is documented in ZUE and AZUE in the FR.
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imolasb5
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« Reply #2 on: July 06, 2012, 06:12:22 PM »
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It looks like multi-spark ignition is available in ME7.1 and can be enabled. It has been awhile since I have looked at it but it is documented in ZUE and AZUE in the FR.
I totally forgot about it. I looked into a little bit when the last thread came up. Maybe this can be the answer. I will take another look see if I can up with something.
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masterj
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« Reply #3 on: July 07, 2012, 10:29:50 AM »
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I'm also interested in this... E85 has always been a problem to start But since on low temps only 15% of fuel is actually burning I'm thinking of bumping fuel by 600% (100/15=~6). Also look at the ESSTT, ESNST functions... I think all we need to tinker is in there
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imolasb5
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« Reply #4 on: July 07, 2012, 03:42:46 PM »
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I thought I would share my findings so far. These settings I am using have helped TREMENDOUSLY with my startup. It has gone from a good 6 seconds of cranking to about a second and fires right up. I multiplied the cold start enrichment tables by 1.25 and also the hot start by 1.25. I also decreased the minimum firing angle for low revs. It could probably get even better but now at least I don't feel like a jackass cranking the car forever. Let me know if anyone gets a chance to try them out and maybe refine it a little more. Oh another note, I haven't quite figured out how to enable multi-spark ignition. It seems like we may be able to enable it via a few code words but haven't spent enough time with it yet. I will update as it progresses.
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kenmac
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« Reply #5 on: July 08, 2012, 08:50:41 AM »
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Great work. I'll be heading down the E85 road shortly and will likely need to do the same.
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nyet
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« Reply #6 on: July 08, 2012, 10:25:39 AM »
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It looks like multi-spark ignition is available in ME7.1 and can be enabled. It has been awhile since I have looked at it but it is documented in ZUE and AZUE in the FR.
I'm interested in this. I have very cold plugs and they take an extra crank to fire.
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phila_dot
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« Reply #7 on: July 08, 2012, 05:29:42 PM »
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I took a few minutes looking into enabling multi-spark ignition.
For this to be active CW_FUBND > 0 and FWNMOT > nmot, both are zero in stock M box.
KFFFANZ defines the number of added sparks based on nmot and tmot.
FFLDZ controls dwell time from ub.
FUBAOF sets open time.
B_ff (Conditon sequential spark ignition) 0x00FDC2 0x4000
fubaanz 0x380DA7, size: 1, factor: 1
szfuba_w 0x382EA0, size: 2, units: ms, factor: 0.000667
offz_w 0x382E9E, size: 2, units: ms, factor: 0.000667
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« Last Edit: July 09, 2012, 07:36:45 PM by phila_dot »
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nyet
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« Reply #8 on: July 08, 2012, 05:38:39 PM »
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Holy cow, thanks!
Can't wait to experiment with it.
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imolasb5
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« Reply #9 on: July 08, 2012, 05:50:03 PM »
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I took a few minutes looking into enabling multi-spark ignition.
For this to be active CW_FUBND > 0 and FWNMOT > nmot, both are zero in stock M box.
KFFFANZ defines the number of added sparks based on nmot and tmot.
FFLDZ controls dwell time from ub.
FUBAOF sets open time.
B_ff (Conditon sequential spark ignition) 0x00FDC2 0x4000
I'll get the other variables next time I get the chance.
CW_FUBND is where I got stuck the other day. I am unsure if maybe my memory address is incorrect. My research showed 0x1A335 and my value is 5. So I gave up for a bit. Yours is 0? Or am I at the incorrect address?
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nyet
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« Reply #10 on: July 08, 2012, 06:11:12 PM »
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Is SY_FFZ non-zero though?
If not, the whole path may not exist in m-box
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imolasb5
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« Reply #11 on: July 08, 2012, 06:24:12 PM »
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Is SY_FFZ non-zero though?
If not, the whole path may not exist in m-box
Shiz. I got to take a look tomorrow. SY_FFZ was the system constant correct?
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phila_dot
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« Reply #12 on: July 08, 2012, 06:44:09 PM »
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Is SY_FFZ non-zero though?
If not, the whole path may not exist in m-box
I haven't gotten all the way through it yet, but the code is there.
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phila_dot
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« Reply #13 on: July 08, 2012, 06:47:02 PM »
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CW_FUBND is where I got stuck the other day. I am unsure if maybe my memory address is incorrect. My research showed 0x1A335 and my value is 5. So I gave up for a bit. Yours is 0? Or am I at the incorrect address?
IIRC the correct location is 0x1A333. That is from memory though. I think the location in the G box was 0x1A335.
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imolasb5
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« Reply #14 on: July 08, 2012, 06:51:43 PM »
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IIRC the correct location is 0x1A333. That is from memory though. I think the location in the G box was 0x1A335.
I will look again. I thought the G-Box was 0x1A333. I probably got screwed up when I was looking at it.
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