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Old 01-22-2005, 07:12 PM   #1
jdchmiel
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Member#: 926
Join Date: Feb 2000
Chapter/Region: South East
Location: Raleigh, NC, USA
Default map clamp voltage oddity.. and low map value oddity

I set up the emanage to clamp at 4.9 and it ran fine, so I tried 4.95 and it still ran fine. I then put it to the 4.85 I was told is the highest value the ecu will allow before fuel cut.. and then did a datalog of the map input voltage.. It only hit 4.89 v max which the eanage clamped to 4.85 volts. I thought the subaru MAP sensor could put out riht up to 5v?

And then another oddity.. when I was coassting down at 4k rpm i noticed the emanage output was .1x v when the map input was .5x volts.. the emanage is not supposed to change my map signal at all except the voltage clamp right now.. Seems odd that it would happen.. I need to get my laptop back on the network so I can share the datalog.
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Old 01-22-2005, 10:45 PM   #2
lotusTT
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Default

Looking at my logs I see about 4.70v at 5 psi, 4.86v at 6psi. I can't find any logs with higher boost, but I'm pretty sure it does go up to 5v or very close to it.

As for the lower voltages, that could be a couple things. You're not using the injector corrector function are you? That's the most obvious thing. Other than that, some of the older firmware causes this to happen, most noticeably when the voltage was very low, so make sure you have the latest firmware (available at www.mohdparts.com/emanage ). The other thing is playing with the rotary switches. I believe I'm using 3-4-2 on a MY00 and have very little problems with this, while a couple other guys with very similar mods and settings had similar problems to yours. 3-6-2 helped for some of them. Search for emanage in the AFI forum and there are quite a few threads covering this issue.
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Old 01-23-2005, 06:23 PM   #3
jdchmiel
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i am runnig 3 4 2 and the oldest software / firmware. I heard about people having issues with idle or a cel depending ono which jumper settigs they used. So i thought the newer firmwarer might cause that cause i have perfect idle and no CEL ( from emanage anyways, I have cat efficiency light). I will try newer firmware and see what the logs look like.
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