Anyone tried a p12 ecu in their accord?

[davenport_st]

I couldn't find a definitive answer in this thread (maybe I missed it), so I figured I'd ask. The only ECU I could find in the JY here was the California emissions one, is that going to mess up my non-CA car?

I prefer mustard on my hotdogs, personally.

Don't forget the dill relish!

[deevergote]

It definitely won't do any damage. I'm not sure what the difference is, honestly. I believe the Prelude S was still rated at 135hp, even for the CA-emissions cars... so if there's a difference, it should be pretty much undetectable. If anything, it might not make quite as much power as one from a non-CA model.

Still, we're only talking 10hp or less here... whatever you feel really is in your head. 10hp is barely noticeable with the ol' butt dyno!

[cb7_with_snail]

try the h23 ecu i swaped that for mine and it felt so much better!

[deevergote]

Because the wrong ECU is always a great idea

[cb7_with_snail]

hey it worked for me.

[deevergote]

"worked" as in "the engine runs", yes. You can run an H22 on a bone stock P06... but that doesn't mean it's right... or that it won't do damage.

You are fueling for an engine with a greater displacement, more compression, and a totally different powerband. Fortunately, the injectors are the same size... but that doesn't mean things are good. If it seems to run better, that's only because there's something wrong with your engine, and it is masking the problem. Chances are, you're running pig rich in most areas, and possibly dangerously lean in others.

Running an ECU that is not designed for your engine can be very harmful... and giving such idiotic advice because "it works for you" is simply ignorant. If you want to be stupid and damage your engine, go ahead... but do so knowing that you're doing something stupid. Don't tell the new members of this forum, who don't know any better, that it's a good idea.
If you didn't know that it is a stupid thing to do, then I'm telling you now. It is a stupid thing to do. Now you know.