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Old 02-28-2002, 09:19 AM
jalfaro jalfaro is offline
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Question ECU Reboot

Hey Guys.
I was wondering how to reboot the ECU (computer I guess) on my 95 Accord LX. I have changed all the oils, belts, put in an air filter, and plus the car is newused I would like to reboot all the settings. I know that it should'nt be tampered with. Is it as simple as probably disconnecting the battery for 5 minutes or is it something more complicated?

Thanks.
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Old 02-28-2002, 09:24 AM
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nittanys1 nittanys1 is offline
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do a search on ECU there are plenty of post on that, i'm looking to put in my AEM CAI and I'll be needing to reset mine too.
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Old 02-28-2002, 12:03 PM
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92AccordCoupe 92AccordCoupe is offline
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i found a bunch of conflicting instructions when i searched the net for ecu rebooting. the method that worked for me was to unplug the ecu fuse while the car was running. i left it out for several minutes, then i plugged it back in and started the car with everything turned off (lights, stereo, fan, etc.). i let my car idle for several minutes without touching the gas.

i put in an air intake and i was getting really bad mileage (~20mpg), but all is well now that i reset the ecu.
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Old 02-28-2002, 12:32 PM
HONDA_99 HONDA_99 is offline
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Here what you do;
first method.
you need to find fuse for ECU back-up and pull it out for 10sec.(10sec is enough) some times Honda pair ECU back-up with something else, on 6gen V6 its paired with clock, it may be same for your car.
BTW, engine must off.

second way of resetting ECU.
since you have LX and LX doesn't have anti-thief device in head unit, so you can dicsonnect negative terminal of battery for 10sec, but you will lose all presettings on your radio.

another thing, it takes 10-15min of normal driving for ECU to learn new set-up.
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Old 02-28-2002, 12:34 PM
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Quote:
Originally posted by 92AccordCoupe
i found a bunch of conflicting instructions when i searched the net for ecu rebooting. the method that worked for me was to unplug the ecu fuse while the car was running. i left it out for several minutes, then i plugged it back in and started the car with everything turned off (lights, stereo, fan, etc.). i let my car idle for several minutes without touching the gas.

i put in an air intake and i was getting really bad mileage (~20mpg), but all is well now that i reset the ecu.
so you took it out when it was running, then did you turn off the car or let the car run for a little while before turning it off. Then you waited for several mins then put it back in and turned on and....what you said..

also what intake do you have?
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Old 02-28-2002, 03:50 PM
bbc_flux bbc_flux is offline
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why reset the ecu???....it isn't gonna help you any.
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Old 03-01-2002, 07:02 AM
HONDA_99 HONDA_99 is offline
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resetting helps ECU to learn new set-up, when you install high performance parts.

high performance parts like intake (filter or entire intake), igntion(spark plugs, wires and coil), exhaust (cat-back, axle-back, header)
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Old 03-01-2002, 08:25 AM
jalfaro jalfaro is offline
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Unhappy Resetting ECU

Wait a second....For starters my Accord is a 95 LX Sedan Not a V6.

Ok, so to reset the ECU I can turn off the car and just disconnect the negative terminal and wait for a couple of seconds and then connect the negative terminal again and start the car and let it idle for a couple of minutes. Is this right?

OR I can disconnect the Fuse under the dashboard while the car is running, leave the car running and then turn off the car and plug the fuse back in and turn it back on and let it idle for a while. Is this correct?



Sorry for the headaches....
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Old 03-01-2002, 12:13 PM
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Quote:
Originally posted by nittanys1
so you took it out when it was running, then did you turn off the car or let the car run for a little while before turning it off. Then you waited for several mins then put it back in and turned on and....what you said..

also what intake do you have?
when you pull the ecu fuse with the car running, the car will shut off automatically. after waiting several mins, i plug it back in and restart my car and let it idle for several mins.

i have an air dynamic intake...got it through ebay for cheap

also, some people suggest resetting your ecu with every oil/air filter change because your car is constantly adjusting. when you change things, even minor things like an air filter, it affects the engine. resetting the ecu won't increase performance, but it can recover lost power and mileage...
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Old 03-01-2002, 12:35 PM
HONDA_99 HONDA_99 is offline
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Re: Resetting ECU

Quote:
Originally posted by jalfaro
Wait a second....For starters my Accord is a 95 LX Sedan Not a V6.

Ok, so to reset the ECU I can turn off the car and just disconnect the negative terminal and wait for a couple of seconds and then connect the negative terminal again and start the car and let it idle for a couple of minutes. Is this right?
YES

Quote:
Originally posted by jalfaro
OR I can disconnect the Fuse under the dashboard while the car is running, leave the car running and then turn off the car and plug the fuse back in and turn it back on and let it idle for a while. Is this correct?
NO


If you do that you will accomplish nothing, you will do same thing as you turn ignition off with your key, while power still supplied to ECU thru ECU back-up fuse.

you need to pull ECU back-up fuse or disconnect battery, end of discussion.
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