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bullcitybmmer bullcitybmmer is offline
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Default Avg Ign Defaulting to 0.0? - 01-15-2018, 01:00 PM

Hi everyone. I usually keep my car in map 5 for everyday use, and recently I've noticed that the avg. ign value has been defaulting to 0.0 every time I start the car up after it's been off long enough for the dme to go to sleep. It tends to creep up as I'm driving along, but it has been slightly problematic a time or two where it's generated too much boost for the fuel quality and caused misfires.

Is there some setting I'm missing somewhere that makes this value static that I may have changed by accident? Has anyone else experienced this? It's been very cold in NC the past month or so, so I'm wondering if that has anything to do with it.
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Terry @ BMS's Avatar
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Default 01-15-2018, 01:06 PM

Post some JB4 logs of the issue and we can look in to it for you.


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bullcitybmmer bullcitybmmer is offline
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Default 01-15-2018, 01:17 PM

Quote:
Originally Posted by Terry @ BMS
Post some JB4 logs of the issue and we can look in to it for you.
I can happily do that, however, it's more of a stationary issue. I keep the bluetooth telemetry going most of the time when I'm driving, and I just notice that the avg ign value usually hangs out around 3.5-4 on normal 93 octane, but when I restart the car it starts out at 0.0. This is a recent change, because previously it would resume exactly where it was when I shut the car off, or even be a little bit higher. This happens on both the ISO_16 & ISO_15 firmware posted in the main forum.
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Default 01-15-2018, 01:20 PM

Maybe it just hasn't updated yet until it moves. What firmware version?


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bullcitybmmer bullcitybmmer is offline
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Default 01-15-2018, 01:34 PM

Quote:
Originally Posted by Terry @ BMS
Maybe it just hasn't updated yet until it moves. What firmware version?
Back on ISO 16 now, after it happened on 15 as well.

It will eventually adjust up to the 3-4 range if I drive it long enough and do enough pulls, so I guess it's not the worst thing in the world, it's just different from how I noticed it acting in the past, so it was slightly alarming.

I searched and found an old thread (which I conveniently can't find again now), where something similar was happening (Avg Ign, FF, etc. resetting to 0.0 each time), and that wound up being a bad chip on the board, so I just wanted to see if there was precedence for this type of issue. And also to make sure I hadn't accidentally screwed up the settings.
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Default 01-15-2018, 02:02 PM

I presume you mean N55 E ISO firmware?

If it always defaults to 0 and then learns from 0 each time could be. Grab another 2580 chip from our upgrades page for $25.


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bullcitybmmer bullcitybmmer is offline
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Default 01-15-2018, 02:05 PM

Quote:
Originally Posted by Terry @ BMS
I presume you mean N55 E ISO firmware?

If it always defaults to 0 and then learns from 0 each time could be. Grab another 2580 chip from our upgrades page for $25.
Yep, the N55 E firmware.

I had already considered trying another chip just to rule that out, so I guess I'll go that route and see how it goes.
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Default 01-15-2018, 07:47 PM

OK if it doesn't fix it email me, we'll refund the $25 for you. And keep working on it.


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inevitab1e inevitab1e is offline
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Default 01-16-2018, 08:11 AM

Chip fixed mine doing this. I think the FF was being zeroed out as well. I've tried Map 6 with set boost targets after the chip install, and my boost targets were never replicated in logs. I wish I could get Map 6 boost targets to work.
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Default 01-16-2018, 09:09 AM

Quote:
Originally Posted by Terry @ BMS
OK if it doesn't fix it email me, we'll refund the $25 for you. And keep working on it.
Thanks Terry, I appreciate the support.
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bullcitybmmer bullcitybmmer is offline
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Default 01-24-2018, 10:27 AM

Hi Terry- Quick update on this. I got the new chip in last week, swapped it out, and running around for several days, I think we might have found the culprit. It reset most all of my settings back to default, but now the Avg Ign value starts exactly where it left off every time I crank up the car, even if I've left it long enough for everything to go to sleep.

Everything is running much better, and I was able to get a quick log this morning. The value on this is pretty low, but it adjusted down there from 5.0, not the other way around like I had been dealing with.
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inevitab1e inevitab1e is offline
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Default 01-24-2018, 03:17 PM

Quote:
Originally Posted by bullcitybmmer
Hi Terry- Quick update on this. I got the new chip in last week, swapped it out, and running around for several days, I think we might have found the culprit. It reset most all of my settings back to default, but now the Avg Ign value starts exactly where it left off every time I crank up the car, even if I've left it long enough for everything to go to sleep.

Everything is running much better, and I was able to get a quick log this morning. The value on this is pretty low, but it adjusted down there from 5.0, not the other way around like I had been dealing with.
Can you test Map 6 to see if your set boost targets actually reflect in a log? Since swapping out the chip, I can set Map 6 to 16 peak psi and the logs show my target as 13.
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Default 01-24-2018, 04:37 PM

Quote:
Originally Posted by bullcitybmmer
Hi Terry- Quick update on this. I got the new chip in last week, swapped it out, and running around for several days, I think we might have found the culprit. It reset most all of my settings back to default, but now the Avg Ign value starts exactly where it left off every time I crank up the car, even if I've left it long enough for everything to go to sleep.

Everything is running much better, and I was able to get a quick log this morning. The value on this is pretty low, but it adjusted down there from 5.0, not the other way around like I had been dealing with.
Good. Log looks normal to me.
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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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Default 01-25-2018, 07:36 AM

Quote:
Originally Posted by inevitab1e
Can you test Map 6 to see if your set boost targets actually reflect in a log? Since swapping out the chip, I can set Map 6 to 16 peak psi and the logs show my target as 13.
I put 10 psi as the flat target across the whole RPM range, and it worked like it should. Looks like you might have something else going on.
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