Logged the low boost high altitude AMS chip today
04-03-2005, 06:37 PM
#1
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Logged the low boost high altitude AMS chip today
<center><img src="http://watkinsglen.bverticals.com/pictures/temp/avant_ecu.gif"></center><p>
I live at ~7000 feet and read 790 mbar at idle in my driveway. I just wanted to check my boost levels and make sure they were safe for the low octane high elevation. I wasn't really doing this for FATS, but if someone does calculate it, please post. I planned to use ECU Explorer, but I didn't have the right properties file for this ECU. My car came with an M box, but the new box reads as a HA. I need to get the properties file and then I can start looking at timing and injector duty cycle. Any comments on my log?<ul><li><a href="http://watkinsglen.bverticals.com/pictures/temp/LOG-01-003-115-xxx.CSV">http://watkinsglen.bverticals.com/pictures/temp/LOG-01-003-115-xxx.CSV</a</li></ul>
I live at ~7000 feet and read 790 mbar at idle in my driveway. I just wanted to check my boost levels and make sure they were safe for the low octane high elevation. I wasn't really doing this for FATS, but if someone does calculate it, please post. I planned to use ECU Explorer, but I didn't have the right properties file for this ECU. My car came with an M box, but the new box reads as a HA. I need to get the properties file and then I can start looking at timing and injector duty cycle. Any comments on my log?<ul><li><a href="http://watkinsglen.bverticals.com/pictures/temp/LOG-01-003-115-xxx.CSV">http://watkinsglen.bverticals.com/pictures/temp/LOG-01-003-115-xxx.CSV</a</li></ul>
04-03-2005, 07:11 PM
#2
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When you register APR ECUx and get the property files from APR, you should be able to use it with
with all ECUs. You just need to find out what # property file your box correlates to. For example, M box is #120 I believe.
04-03-2005, 07:20 PM
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As for your logs, looks like you are having some issues.....
You seem to be experiencing throttle cut right here (003 portion of log):
14.48 3200 105.97 100 21.8
15.08 3760 181.56 100 3.8
15.7 4120 131.28 29.8 9
16.32 4560 172.58 100 11.3
16.99 5240 248.69 100 12
17.7 5920 244.97 100 12.8
115 portion of the data above is as follows:
14.18 3040 86.5 1560 1100
14.78 3480 121.1 1760 1520
15.38 3960 133.8 1480 1880
16 4320 121.1 1460 1520
16.65 4840 148.1 1790 1700
17.34 5560 150.4 1800 1840
It seems as though you cut throttle when spiking to 1880 mbar, as requested was only 1480 mbar at that point.
The same issue appears to occur again soon after (003 portion):
19.75 4400 235.81 100 3
20.39 4640 184.64 46.7 6
21.05 4920 218.19 100 8.3
21.72 5160 226.86 100 12
22.41 5440 233.5 100 9
23.12 5720 239.19 100 8.3
And here is the 115 portion when this was happening:
19.45 4320 108.3 1780 1350
20.08 4520 153.4 1780 1980
20.72 4760 147.4 1790 1770
21.38 5080 148.9 1800 1810
22.06 5280 148.1 1800 1790
22.76 5600 145.9 1800 1800
Then once again is happens right here:
41.53 5280 281.22 100 7.5
42.22 5440 216.22 49 9.8
42.93 5600 236.33 100 6.8
43.64 5760 239.03 100 12
44.36 5880 242.83 100 9
And here is the 115 portion to go along with it:
41.19 5200 92.5 1800 1090
41.88 5360 157.1 1800 2070
42.57 5520 145.1 1800 1760
43.28 5680 145.1 1800 1800
44 5800 142.9 1800 1800
The fact that you logged 2 blocks at the same time doesn't help. If you could try logging 1 at a time, we could get a better idea of what's going on. The best bet would be to log with APR ECUx, but only after you've done a pressure test or a visual check for leaks IMHO.
Probably not what you were hoping to hear, sorry.
P.S.-Oh the irony, I'm helping the same person that has banned me at least a dozen times. Heh, no hard feelings. I deserved it every damn time!
14.48 3200 105.97 100 21.8
15.08 3760 181.56 100 3.8
15.7 4120 131.28 29.8 9
16.32 4560 172.58 100 11.3
16.99 5240 248.69 100 12
17.7 5920 244.97 100 12.8
115 portion of the data above is as follows:
14.18 3040 86.5 1560 1100
14.78 3480 121.1 1760 1520
15.38 3960 133.8 1480 1880
16 4320 121.1 1460 1520
16.65 4840 148.1 1790 1700
17.34 5560 150.4 1800 1840
It seems as though you cut throttle when spiking to 1880 mbar, as requested was only 1480 mbar at that point.
The same issue appears to occur again soon after (003 portion):
19.75 4400 235.81 100 3
20.39 4640 184.64 46.7 6
21.05 4920 218.19 100 8.3
21.72 5160 226.86 100 12
22.41 5440 233.5 100 9
23.12 5720 239.19 100 8.3
And here is the 115 portion when this was happening:
19.45 4320 108.3 1780 1350
20.08 4520 153.4 1780 1980
20.72 4760 147.4 1790 1770
21.38 5080 148.9 1800 1810
22.06 5280 148.1 1800 1790
22.76 5600 145.9 1800 1800
Then once again is happens right here:
41.53 5280 281.22 100 7.5
42.22 5440 216.22 49 9.8
42.93 5600 236.33 100 6.8
43.64 5760 239.03 100 12
44.36 5880 242.83 100 9
And here is the 115 portion to go along with it:
41.19 5200 92.5 1800 1090
41.88 5360 157.1 1800 2070
42.57 5520 145.1 1800 1760
43.28 5680 145.1 1800 1800
44 5800 142.9 1800 1800
The fact that you logged 2 blocks at the same time doesn't help. If you could try logging 1 at a time, we could get a better idea of what's going on. The best bet would be to log with APR ECUx, but only after you've done a pressure test or a visual check for leaks IMHO.
Probably not what you were hoping to hear, sorry.
P.S.-Oh the irony, I'm helping the same person that has banned me at least a dozen times. Heh, no hard feelings. I deserved it every damn time!
04-03-2005, 07:40 PM
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And here is the problem graphically...
Notice how the actual boost deviates from the requested boost. That is when the throttle cut is occurring:
<img src="http://img.photobucket.com/albums/v654/DocSlow/NeilMBlock115TC1.gif" alt="Image hosted by Photobucket.com">
<img src="http://img.photobucket.com/albums/v654/DocSlow/NeilMBlock115TC2.gif" alt="Image hosted by Photobucket.com">
<img src="http://img.photobucket.com/albums/v654/DocSlow/NeilMBlock115TC1.gif" alt="Image hosted by Photobucket.com">
<img src="http://img.photobucket.com/albums/v654/DocSlow/NeilMBlock115TC2.gif" alt="Image hosted by Photobucket.com">
04-03-2005, 07:42 PM
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sae 1.3 at 7000ft is probably wayyyy to high for turboz, but hey, tahts the "std"
<center><img src="http://nyet.org/cars/vag/neil/LOG-01-003-115-xxx.CSV.jpg"></center><p>if it seems high, divide both numbers by 1.3 
04-03-2005, 07:52 PM
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throttle cut!
I didn't expect throttle cut as I don't feel it in the butt dyno at all. Throttle cut seems to be a common issue on this board. My main goal was to make sure I was running safe boost levels. The peak boost reading 2070mbar-790mbar = 1280mbar relative boost.
1280mbar * (0.0145psi/mbar) = 18.56psi. I don't recall seeing it this high on the boost gauge. It looks like a manual boost controller in parallel might be in order.
1280mbar * (0.0145psi/mbar) = 18.56psi. I don't recall seeing it this high on the boost gauge. It looks like a manual boost controller in parallel might be in order.
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04-03-2005, 07:56 PM
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First, make sure there is no issue with your car causing the TC. Then, you can decide what route to
take. The last thing you want to do is add a MBC in parallel to cover up a problem with your car. I'd recommend pressure testing and/or doing a visual check for leaks. I'd also do some more logging before taking action if you can't find a leak.