flashing ecu

[esskater892]

so if i were to get an ecu from another honda accord like mine. would it need to be flashed? i didnt think it would need to be sense its the same thing. what does it mean to have a ecu flashed?

[DarkHusk11]

as long as you grab the right one. There are different ecu's for each trim and everything. Flashing might be for tuning, maybe? Im not sure

[deevergote]

You do not "reflash" these ECUs.

In addition, the Accord ECU is currently unable to be properly modified for a custom tune.

If you get another ECU from a CB7 with the same engine and transmission as your car, it will run exactly as it should.

[esskater892]

ok cause i was talking about ecu's to my friend and he was like you have to get em reflashed even if you get it from the same car. it didnt make sense to me as there tuned to run all the same fuel and all that stock.

edit: when you say modified for a tune, do you have to get it chipped to do that? if you add a turbo dont you have to retune the ecu?

[deevergote]

Yes.

"reflash" is a term more commonly associated with newer ECUs. It generally refers to tuning them, or at least uploading a different fuel map.

If you switch one ECU for another of the same model, there is no need to tune them. Generally, Prelude and Accord ECUs cannot be tuned.


A word of advice: don't listen to that friend. He clearly knows nothing.

[esskater892]

haha. ya i think he lets working at autozone get to his head a lil. good guy for sure. and it didnt make sense to me so i thought i would ask.

[deevergote]

I have yet to meet an Autozone employee that actually knew what he was talking about... (actually, not true... my neighbor's grandson knows a ton, but something tells me he already quit that place... I saw him there on his first day.)

[esskater892]

haha ya i here ya man. there are a select few that know what there talking about.i just drive the vans lol.