ecu's

[BluAccord]

hey fam i have a question. can a ecu from a 92 acura itegra be used in our cars? i have a 91 accord. if so what are the advantages or disadvantages of using it? thanks it is a (pr4)

[nine_deuce]

I don't think so, since the motors are different

[NAiL05]

pointless unless it gets chipped and tuned. As I recall pr4 can be chipped.

[los170bx]

hey since this is about ecu im not tryin to jack your thread but what would a chipped p28 do to our cars?? what are the good things abt it and the bad things on our cars??

[NAiL05]

you wont need a chipped p28 if you dont have anything with vtec.

[los170bx]

you wont need a chipped p28 if you dont have anything with vtec.

o ok thankz, than what type of ecu should i get since im planin on goin all motor wit my car thanks bro

[deevergote]

Any chipped ECU basically becomes a blank slate for tuning. It will "do" to your car whatever you tune it to do. Some just have more functions than others (like the P28 over the P06).

You can't just install a chipped ECU and have it do something good. You certainly can't install another stock ECU and expect anything. Installing a chipped ECU is like putting a new blank hard drive in your computer, without installing an operating system. It won't do a damn thing.


If you have an F22A1 (LX or DX model), you can see some gains from a P12 ECU from a base-model BB4 Prelude. The one that ALSO has the SOHC F22A1 (the only 92+ Prelude with a SOHC engine)
(correction... the chassis code is not BB4... It is BA8.

[wuchang]

do you really gain>??

[deevergote]

do you really gain arrow question mark question mark...
That's a coherent statement, right there.


Anyway, yes. The F22A1 in the Prelude is rated at 135hp from the factory. The EXACT same engine in the Accord is rated 125hp from the factory (I say "from the factory" because none of these engines are likely to make that much power after being so old). The only difference is the ECU.

[benji]

If you have an F22A1 (LX or DX model), you can see some gains from a P12 ECU from a base-model BB4 Prelude. The one that ALSO has the SOHC F22A1 (the only 92+ Prelude with a SOHC engine)

The chassis code for that prelude is a BA8. The rest of them are BBx (BB1 for 1st gen H22A preludes, BB2 for the H23A, BB4 for the 2nd gen H22A (obdII)).

[BluAccord]

ecu's

hey thanks for the info. i guess i'll use it as a boat anchor this weekend..

[91project]

i have the p12 and noticed gains...if that helps

[benji]

i have the p12 and noticed gains...if that helps

Yeah, as I've said in a few of the other billion threads about the p12, my Prelude (which was an S before I swapped) moved better than my 1990 EX Accord did, despite being heavier. Of course, I don't have any big proof (dyno/track time), but I won more often with my prelude than my accord.

[EJX_Michael]

Yeah, as I've said in a few of the other billion threads about the p12, my Prelude (which was an S before I swapped) moved better than my 1990 EX Accord did, despite being heavier. Of course, I don't have any big proof (dyno/track time), but I won more often with my prelude than my accord.

That doesn't sound right.

Didn't the 90 EX have an F22A6?

Unless your accord was in worse condition than the prelude, it should have been faster...

[deevergote]

The 90 EX had the F22A4, so the Prelude had 5hp more.

It's not a major deal breaker, but it IS more powerful.

People have matched Honda part numbers for both F22A1 motors, Accord and Prelude. They are identical motors. The only difference is the ECU, which means the ECU is solely responsible for the 10hp. Well, mayboe not SOLELY responsible (intake and exhaust aren't identical), but it's most likely the largest part of it.