Resetting your ECU with BIG`O

[BIG`O]

Disclaimer: The following is provided as a GUIDE ONLY, and neither myself nor Ozhonda take any responsibility for the outcomes of someone else doing the following. You follow these steps at your own risk!


After installing or performing modifications to your car ~ ie. throttle body, manifold, intake or exhaust; it is good to reset your ecu and "run it in". This is because it resets your air/fuel mixtures, allowing your ecu to "learn" your current setup.
so if you have recently changed either of the items mentioned above, i highly recommend that you partake in the following.

anyway to start things off:
STEP #1
after popping your bonnet - find your fuse box (passenger side just behind your battery on a dc2/4 integra ~ see pic)


STEP #2
locate your "ecu fuse" (top left, 15AMP on your dc2/4 integra ~ see pic) and remove it (and the 7.5amp "backup" beside it) carefully using either fuse clamp or long nosed pliers.


STEP #3
wait 10 minutes, good time to take a random pic or two.


STEP #4
re-install the fuse (see pic) and then start car and let idle for at least 10 minutes minimum, (during this time dont touch anything!! no revs, nothing!!!) once its warmed up, go for a burl and make sure all is good.

YOUR DONE!

enjoy your honda

[Stoosh]

could you please tell me what the advantage of resetting your ECU is?

[egads]

might want to take the one beside it out aswell. ecu backup

[BIG`O]

could you please tell me what the advantage of resetting your ECU is?

fuel economy mainly.
do a search

[twing]

How about other car? which one to pull?.. What's the label in the manual?
Is it the 'FI E/M (ECM/PCM)' and 'Back Up'?

[mrwillz]

fuel economy mainly.
do a search

yes that is quiet true

ive recently done (well cudnt avoid it)
and it did giv me an increase in fuel economy
i was avg about 430km wen it was on the brink of fuel light coming on, jus recelty got over 450km+ wifout the light being on.

i kud also somewhat feel that the car is performing a lil smoother on the go

its a good lil tip to reset ecu. u got nothing to lose.

[BIG`O]

work a treat ^_^

[hotboxcivic]

supposedly the ecu goes back to the original state it was in before the reset..

[BIG`O]

supposedly? prove it. my fuel economy is amazing.

[hotboxcivic]

big ben himself reckons so!

how reliable is that guy away?

[JasonGilholme]

your air fuel rations will go back to the factory values to ensure good fuel economy. In saying this tho, the only time you should do this is if you've done mods to your car such as air filter and exhaust.

IF you throw a different air filter on your car without resetting the ecu and jump straight in and fang it down the street. THe car won't be ready to handle the excess air that is being fed to it. If you reset the ecu and let it idle for a short period of time, it gets used to the new amount of air.

Just because the ratios are going back to factory settings doesn't mean your car is going to be stock. It just means it will be able to handle the excess air that the engine is being fed. Which means a smoother ride and a bigger advantage from doing mods.

Jase

[jooboo]

hwo come u didnt remove the 7.5 fuse too??