Thinking about getting a P12 ECU

[AbsurdNY]

I have a few questions before I decide to go junkyard shopping.

1) How do I tell what ECU is currently in my car? Car was bought about 4 years ago and it was sitting in my garage. Not sure if the previous owner ever changed the ECU.
2) Is the ECU transmission specific? (MT ECU will only work for MT? ect.)
3) What are the benefits over the P06?
4) Are there any after market parts to finely tune the ECU or are there any better ECU's then the P12 that will work with a F22A4, for that matter?

[1990Ex]

ecu controls the engine not the tranny

all you have in a manual is a ecu

in a auto you have a ecu an a tcu


p12s work with f22a4s i have one

an i saw pretty good gains on the bottom end

[nine_deuce]

I'm in no way a professional when it comes to this, but I'll offer what I know from what I've read.

The f22a1 and f22a4 motors have a pt3 ecu, and I believe the f22a6 has a p06 ecu. If you were to take it out, there is a sticker on the side that'll have some numbers and letters.

The p12 ecu will give you roughly 10 to 15 extra ponies...

Again, this is all from what I've read.

And as far as the manual or auto tranny ecu, they're the same, you have a separate tcu for the trans.

Hope this helps out, good luck!

[1990Ex]

there is a whole thread about the p12 just search buddy

[Gotz Cb7]

p12 comes in the 92-95 S preludes. (f22a1). For some reason, the Ecu in their f22a1, has 10 more extra horses than the Ecu inour f22a1. It'll put gains on an a1 and a4. Only difference in the a1 and a4 is the header.

[Gotz Cb7]

Oh, and most people use a p06 for Turbo setups, since they're programmable.

[1990Ex]

p12 comes in the 92-95 S preludes. (f22a1). For some reason, the Ecu in their f22a1, has 10 more extra horses than the Ecu inour f22a1. It'll put gains on an a1 and a4. Only difference in the a1 and a4 is the header.

an the hp lol, it advances the timing an runs the car a lil rich

[JDMchristian991]

p12 comes in the 92-95 S preludes. (f22a1). For some reason, the Ecu in their f22a1, has 10 more extra horses than the Ecu inour f22a1. It'll put gains on an a1 and a4. Only difference in the a1 and a4 is the header.

my a4 is auto.i can still run a p12 correct?

[nine_deuce]

I believe so, you have a tcm for your trans, the ecu just controls the engine side

[1990Ex]

my a4 is auto.i can still run a p12 correct?

yep thats my setup f22a4 with p12 an i FUCKING LOVE IT

[Gotz Cb7]

Yea, the f22a1 and a4 run from the same Ecu, so p12 will work fine. Now, the f22a6 Has the pt6 Ecu, for the dual runners that comes with the intake manifold, and has no governor. (top speed). SO, you're okay.

[Leung]

i thought the p06 was out of a Civic?

[accordmaniac]

i thought the p06 was out of a Civic?

You are right! P06 is from Civic.
I have extra 92 Accord EX (F22A6) ECU laying around my room.
Part #: 37820-PT6-A51 333-526280

[deevergote]

P06 is from a Civic. It is not programmable. It has to be modified in order to be so. It is also absolutely USELESS to us unless it is modified and properly tuned. All of the people that have posted in this thread, with their current knowledge, have no use for a P06 unless they know someone who can modify and tune it for them.


The PT6 goes with the F22A6, and is tuned to work best with the F22A6 parts (camshaft, intake manifold, exhaust manifold... those are the main 3, though there are other differences).

The PT3 is the A1/A4 Accord ECU, as mentioned. It is the same for both engines, or, at least not different enough to matter, if there is any difference.



It's not common for a non-tuner owner to swap out ECUs. Honestly, if they weren't a member here, they probably wouldn't have even known that the P12 could offer a gain. Our ECUs rarely fail, and there's very little reason for anyone to ever remove them... other than tuners looking for an upgrade.

[bruno8747]

Why are these threads always so confusing?

The P12 mod has been covered many times, But yet when someone ask they get mis informantion and tid bits.