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View Full Version : Should I reset ECU anfter CAI install???


midjjj
04-11-2002, 11:25 PM
Hey fellas,
I am putting in my Cold Air Intake this weekend and have heard some stuff about needing to reset my ECU due to the higher airflow.
#1, Shoould I do this and..
#2 if so, any hints on how?
(I know how to take it out and put ti back in!:D )
Thanks

PabloHoney
04-12-2002, 12:21 PM
I would say don't. The ECU has long and short term memory. It learns how you drive your car and adapts to it. I would just install the intake, and let the ECU learn that it's there. It takes like 50 restarts or something...don't exactly remember.

94_AcCoRd_EX
04-12-2002, 02:52 PM
Yes, go ahead and reset it. It can only help.

To reset it easily, just pull the neg. batt cable for 5 minutes or so (car is off), and the make sure all accessories are off and start the car w/o hitting the gas. Let it idle for awhile.

Honda_Gurl
04-12-2002, 02:54 PM
ya i've heard it should be reset after every engine mod, is that true?

slowEJ6
04-12-2002, 08:40 PM
doesnt HAVE to be.......but why not? only takes about 10m.

Whtehnda93DXSdn
04-13-2002, 09:06 AM
I would recommend the resetting of rht eECU..It only takes about 10mins or so and it will then better register and perform after the mod. I have also heard abotu doing it after each mod to get a little more from it.

Just remember pull the ECU fuse..Leave it out for like 5mins..then put it back in and start up the ride. NEVER TOUCH THE GAS and let it idle for like 5-7mins or so...

Hope this might help....:yes: :yes: :yes:

Lovebuzz13
04-13-2002, 10:22 AM
Yes, you should reset the ecu.

melteye
04-16-2002, 06:26 AM
I wouldn't reset my ECU if I were you. Generally it will learn things about your engine in the long run and by resetting your killing info it can use later on down the road (or it has to take time to relearn). I had to drive about 260 miles before my Maxima's engline light went off when installing my Frankencar Intake (K&N), I would recommend just waiting.

94_AcCoRd_EX
04-16-2002, 03:26 PM
Originally posted by melteye
I wouldn't reset my ECU if I were you. Generally it will learn things about your engine in the long run and by resetting your killing info it can use later on down the road (or it has to take time to relearn). I had to drive about 260 miles before my Maxima's engline light went off when installing my Frankencar Intake (K&N), I would recommend just waiting.

I'm not sure I agree. Since removing the negative batt cable resets it, people reset the ECU all the time when working on their cars w/o even thinking about it. There haven't been any negative effects yet.

slowEJ6
04-16-2002, 04:10 PM
Originally posted by 94_AcCoRd_EX


I'm not sure I agree. Since removing the negative batt cable resets it, people reset the ECU all the time when working on their cars w/o even thinking about it. There haven't been any negative effects yet.
yup, its a very good idea to detach the negative terminal when working on your car. its suggested to do so....

alpine3069
04-16-2002, 04:14 PM
so what about after you had some mods to your engine on for a while?? should you still reset it??

slowEJ6
04-16-2002, 04:19 PM
probably not much of a point to it if theyve been on for a week or so.

melteye
04-16-2002, 06:13 PM
Originally posted by 94_AcCoRd_EX


I'm not sure I agree. Since removing the negative batt cable resets it, people reset the ECU all the time when working on their cars w/o even thinking about it. There haven't been any negative effects yet.

Well, remember. We are on two different systems entirely. On my Maxima nothing resets the ECU except with a computer (even taking battery out for days)

94_AcCoRd_EX
04-16-2002, 06:20 PM
Originally posted by melteye


Well, remember. We are on two different systems entirely. On my Maxima nothing resets the ECU except with a computer (even taking battery out for days)

Oh ok, I didn't know that :)