DIY: ECU Removal

[udumkid]

Before disconecting the battery,make sure you have your radio code.

[myke_g323]

Very good info. This site is going to come in real handy!!

[07mugencivic]

why did you take it off...........

[Zeuceone]

for the hondata reflash like she said.

[atruhondagrl]

Bump for those who need it.

[Black Arrow]

does hondata reflash R18's ECU????????

[2fast4u2]

Originally Posted by Black Arrow

does hondata reflash R18's ECU????????

Nope.

[cchuang]

why you want to take it off?????

[2fast4u2]

Originally Posted by cchuang

why you want to take it off?????

To benefit from the performance gains:

http://www.hondata.com/reflash_06_civicsi.html

The K20Z3-06Si reflash lowers the VTEC point to 4500 rpm, advances the cam angle and raises the rev limit to 8600 rpm.

We have implemented a VTEC window from 4500rpm to 5800 rpm.

* Below 4500 rpm the K20Z3 is always on the low cam
* Above 5800 rpm the K20Z3 is always on the high cam
* Between 4500 rpm and 5800 rpm the K20Z3 is on the low cam at part throttle switching to the high cam at full throttle.

This one reflash will work well with a variety of aftermarket performance parts. It will work well with:

* An intake
* Cat-backs (as long as they are less restrictive than stock)
* A race header *
* A combination of intake and race header

(*Note that current race headers eliminate the catalytic converter and will generate a check engine light. This engine check light is for emissions and will not affect the car's performance. Race headers are for offroad use only)

You must have a minimum of an intake or header.

It is not designed to work with a stock 06/07 Civic Si and will lose power between 4500rpm and 5600 rpm if installed.

The 06 Civic employs a mass air flow sensor that automatically adjusts the air-fuel ratio for increases in air flow from intakes and race headers. Race headers will not cause this engine to run lean.

The VTEC switch point on this reflash is very smooth - much smoother than previous reflashes. With a stock air box and race header the switch point is virtually undetectable. For the reduction in VTEC "kick" and aural stimulation, we apologize, but this is the path to maximum power.

Power is gained in the midrange from 4700rpm to 6300 rpm. Power gains above 6500 rpm are negligible, although the higher rev limit will raise average power a little.

As this reflash will work with a combination of aftermarket parts we have two examples of the effect of the same reflash on two 06 Civics. (Both Civics dynoed at about 195 stock HP)

* 4500 rpm VTEC point
* Rev limiter raised to 8600 rpm.
* 15-25 Hp gain midrange
* 15-29 ft lb torque gain midrange

[si_civic]

^ you listed 15-25hp gain midrange, it should be torque

and 15-29 ft lb torque should be hp





Don't kill the messenger pigeon !

[RALLYRDSI]

hey man nice DIY my question is did ur quarter mile time change dew to the extra power and rpm raised?

thanks


giggity

[2fast4u2]

Originally Posted by RALLYRDSI

hey man nice DIY my question is did ur quarter mile time change dew to the extra power and rpm raised?

thanks


giggity

Sorry I can't answer that, as my car has never been on the track.

[J.K]

WOW...Amazing, You guys...

[GlxyGry06Si]

Originally Posted by udumkid

Honda Reflash FTML

first of all nope. second of all what is FTML.

[cjackson2435]

Where is the best place to get an ECU reflash for 07 civic si sedans besides staight from hondata cuz 600$ is way to much

[MurderedCivic]

could you reflash a R18 ?

[webby]

hondata has no reflash for the r18 currently.

cjackson -
Dealers
list of dealers who offer hondata products. You'll find most cost about the same price, because it's technically set by hondata.

[Civvic]

awsomeee

[2fast4u2]

Thank ya.

[CivNick]

throwing it out there.

can u swap ecu?

someone with a honda data flash, and wants to sell it ,

can u just swap them? or will this cause problems with the car?