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#1
03-09-2004, 01:48 PM
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resetting computer
How do I reset my computer in 91 crx si
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#2
03-09-2004, 02:11 PM
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Re: resetting computer
you can do it one of two ways.
1. unhook the negative battery terminal for a minute or so and hook it back up or 2. remove the ECU fuse under the hood for a minute. this will prevent you from having to reset your clock and/or stereo settings
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#3
03-09-2004, 07:42 PM
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same for 89?
does those both apply for an 89 crx si?
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#4
03-09-2004, 09:37 PM
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I actually reset my ecu by pulling the hazard fuse out for 10 secs and plucked it back in. But since this thread is up, I have a question. Is it true that when the ecu stores a trouble code it runs in safe mode? and if it does, what does safe mode do exactly?
__________________
1990 Black Geo Storm - RIP - 1990 Blu metallic Std Hatch 1999 Milano Red Ex Coupe Current -- Ex to Si. It's Overdone, but who gives a crap. I don't!
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#5
03-09-2004, 09:55 PM
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Re: resetting computer
I've never heard of a ECU run at safe mode!! But if it's anything like a computer it's going to run with the minimum requirements to get the car going. Dont quote me on that though...
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#6
03-09-2004, 10:05 PM
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No quoting here man! thanks for the answer though!
__________________
1990 Black Geo Storm - RIP - 1990 Blu metallic Std Hatch 1999 Milano Red Ex Coupe Current -- Ex to Si. It's Overdone, but who gives a crap. I don't!
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#8
03-09-2004, 11:27 PM
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but............
hey, but i also know ppl who's crx sucked more gas after he resetted the ECU when then put an cold air intake on, is that true?
and whatsthis about safe mode?
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#9
03-10-2004, 02:16 AM
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Re: resetting computer
I dunno about safe mode, sometimes after resetting mine the car idled high (like 3000 rpm) for awhile. When it would do this I would just let it go it was usually the ECU mapping itself back out.
As for the eating gas thing, yea its possible. Some other cars I know like DSM's will do that when you reset their ECU's. The computer is running alot of gas till it gets a feel for the A/F ratio of the engine. Hence when you change something like the amount of air comming into your engine with a intake, its good to reset the ECU so it can re-learn and make the most outta the extra air comming in. Takes only a good solid day or two of driving you'll never notice a MPG change with it, not on a honda lol.
__________________
89 Si #77 and now with 2003 STS winnAr mod!  LadyNRedSi: the integra is a spotless cow habibswd: i'd sooooo milk a spotless cow ...wow that was a old conversation
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#10
03-10-2004, 02:41 AM
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Ive always just disconnected the negative terminal of my battery, so I knew the job was done right...you know?
__________________
Official AF Primer Crew!  Updated 1-23-05 For sale: Stock 4-door corner lights. 13" stock wheels with 6 month old tires.
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#11
03-10-2004, 08:06 PM
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At first, I always disconnected the battery cable. But after words, it's hell trying to set all your radio stations and clock back to my settings. It's totally worth taking the hazard fuse out. And the safe mode thing, yeah I did notice how my engine sucked more gas after resetting it. The air/fuel meter on the pillar just went back and forth till it finally settled in the middle. I have yet to notice any difference after resetting it so maybe the safe mode is nothing to worry about. That's what these forums are for.....right?
__________________
1990 Black Geo Storm - RIP - 1990 Blu metallic Std Hatch 1999 Milano Red Ex Coupe Current -- Ex to Si. It's Overdone, but who gives a crap. I don't!
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#12
11-09-2004, 04:13 PM
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Re: resetting computer
Quote:
some say to unplug the hazard fuse, some say to unplug the ecu fuse.  which is better? thx-crawfm
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#13
11-09-2004, 04:41 PM
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hazard, its even what honda says to do.
__________________
ZC stuff http://dh-racing.com http://www.thezcr.com/html/zcbook.php http://dmoore.com/crx/zc.htm http://www.jgenginedynamics.com/HOME%20PAGE http://www.theoldone.com/ 
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