ECU Reboot
jalfaro
02-28-2002, 09:19 AM
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.
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.
nittanys1
02-28-2002, 09:24 AM
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.
92AccordCoupe
02-28-2002, 12:03 PM
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. :)
i put in an air intake and i was getting really bad mileage (~20mpg), but all is well now that i reset the ecu. :)
HONDA_99
02-28-2002, 12:32 PM
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.
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.
nittanys1
02-28-2002, 12:34 PM
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?
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?
bbc_flux
02-28-2002, 03:50 PM
why reset the ecu???....it isn't gonna help you any.
HONDA_99
03-01-2002, 07:02 AM
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)
high performance parts like intake (filter or entire intake), igntion(spark plugs, wires and coil), exhaust (cat-back, axle-back, header)
jalfaro
03-01-2002, 08:25 AM
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?
:confused:
Sorry for the headaches....:)
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?
:confused:
Sorry for the headaches....:)
92AccordCoupe
03-01-2002, 12:13 PM
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...
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...
HONDA_99
03-01-2002, 12:35 PM
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
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.
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
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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