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Old 10-27-2000, 07:58 AM   #1
Gambit
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Member#: 102
Join Date: Jul 1999
Location: The meeting place
Post reseting the ecu ....fuse method

Hey,

A few questions.
1) which fuse does the ecu reset?
2) when you put back the fuse will it set the alrm off?
3) will it clear all the clock and CD deck settings? (ie full reset like the battery terminal method)
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Old 10-27-2000, 08:51 AM   #2
Jaxx
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Join Date: Aug 1999
Chapter/Region: NWIC
Location: Boise,Idaho,USA
Vehicle:
The 93 Imp W/EJ20K
flat black

Post

sfb2.. under the hood.. does not work for 2000s

remeber sanfranciscobay2
-j
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Old 10-27-2000, 08:52 AM   #3
RidinLow
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1995 325i
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Post

Ah ha, that explains why I couldn't find that fuse in my MY00...
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Old 10-27-2000, 09:04 AM   #4
DuneHopper
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Location: Newark, DE USA
Vehicle:
2000 OBS
White

Thumbs up

Actually, the MY00 stereo maintains its presets if the battery isn't disconnected for much longer than a half hour. The clocks still need to be reset.

And I still jump out of my skin when the alarm goes off upon reconnecting the battery, even though I'm ready for it and I have the button in my hand.
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Old 10-27-2000, 09:48 AM   #5
Gambit
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roger that. but would like to hear the non MY00 weirdo Imprezas speak up.
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Old 10-27-2000, 10:40 AM   #6
Ken S
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Location: Bay Area, CA
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05 Leg GT Ltd. W
Silver

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I don't think the fuse method works on my 98. I've left it pulled overnight but when I start the engine it starts up like nothing ever happened. Fuel milage afterwards stays the same too.

On the other hand, when I unplugg the battery terminal, there is a noticeable difference in idle and engine behavior at startup. Gas milage dips initally, then climbs back up.

Also, radio presets don't change after battery disconnect. Only the clock needs to be reset.

For those of you who have the alarm, try stuffing the alarm horn with a towel -- it reduces the "heart-attack" factor.

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Old 10-27-2000, 11:02 AM   #7
Gambit
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Well the battery method resets everything including my stereo presets. All it takes is leaving it off at 30+ minutes and everything's gone.
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Old 10-27-2000, 01:04 PM   #8
STiShawn
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On my 99 with aftermarket stereo, hooked up via proper wiring harness,i loose ALL my settings. I will have to try the fuse method soon.
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Old 10-28-2000, 11:40 PM   #9
P.K. Motorsports
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1999 RS
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Post

The fuse method doesn't consistently work. When you have an A/F ratio gauge you can plainly see whether the ECU was reset or not, and the pulled fuse doesn't work about 2/3 of the time when left overnight. On the other hand, disconnecting the negative battery cable works after only 10 minutes, and probably in less time than that.
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