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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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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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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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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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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ME7.1 tuning guideECUx PlotME7Sum checksumTrim heatmap toolPlease do not ask me for tunes. I'm here to help people make their own. Do not PM me technical questions! Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your ex
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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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