A23 ecu

[Mirage 659]

Just bought a '99 225 pro max with an A-23 ECU havent had any luck finding information on it, any at all would be greatfull

I think its off a offshore SS model

[tux974]

The A23 came on the SS 15" 225PM only. One piece plate with the mini oval tuner.

[Mirage 659]

Guess I wasnt clear, Im wanting more information on the ECU its self. Can any one tell where I can find this info or have knowage of the ECU they would care to share
thanks

[tux974]

What info are you looking for? Mapping? Only Mercury can provide that...maybe or Eric Simon.

[Mirage 659]

rev limit?

[tux974]

rev limit?

Stock would have come 6750. If it is different only someone like Simon or Brucato removed it.
If you need to confirm what it has now only Simon is doing those boxes now.

[Mirage 659]

Thanks for your info tux

[Mirage 659]

my dyslexia was showing, its really an A32 which makes me happier, 8200 limiter

[TEXAS20225]

nope all 225 promax limiters are 6750. unless someone has tweeked on it. i have had several of these stock 225 Promax brains some of them are good some are not

[HStream1]

11350 A 32 came off a 1994 Off Shore race 2.5 with a 39 psi fuel curve and a 8200 rev limit.

[Mirage 659]

Part #	Ver.	Model & Year	PROM ID	Fuel Pressure	Rev. Limits	Supercede To	Supercede From		Notes
11350	A27								Early 2.5L Analog ECU used on engines with external TPI and external Speed-Limiter (Rev-Limiter) modules. (6)
	A29	2.0 / 1994	N/A	39	11500	A45
	A45	2.0 / 1995	2615	56	11150
	A46	2.0 / 1995	2615	56	11150		A28
	A53	2.0 / 1995 Service Only	2613 / 2650	56	9250
	A40	2.4	2514	39	7700		821559A1
	A32	2.5 Offshore Race / 1994,	N/A	39	8200	A35
	A36	2.5 Offshore Race / 1995	2509	39	8200		A32
	A48	2.5 Drag / 1995	2511	39	11500		A38
	A63	2.5 Drag / 1995 + Up	2719 / 2796	56	11500
	A33	S3000 / 1994	N/A	39	9250	A52
	A47	S3000 / 1995	2508 / 2522	56	9250
	A52	S3000 / 1995	2508 / 2522	56	9250		A33
	A61	S3000 / 1996	2717 / 2776	56	9250
	A65	2.5 PROP / 1997	2622	56	8600
	A49	2.5 EFI / 1996	2510	39	7750		A37
	A62	2.5 / 1996			7750				Digital ECU with internal TPI. Similar to the A49. (6)
849849	A2	2.0 Mod U	7115	56	none / 11500		A45		The 849849 series superceded the 11350 series, and features a thinner ECU, different tester connector, enrichment moved from front to back of box, ECU chips are potted and cannot be removed.
	A3	2.0 PROP	7113	56	9300 / 9400		A53
	A4	2.4	7114	39	7500 / 7800		A40		Not original equipment on any 2.4L - replacement part only.
	A1	2.5 EFI	7110	39	7600 / 7900		A49
	A5	2.5 ROS	7109	39	none / 8200		A36
	A6	2.5 DRAG	7119	56	none / 11500		A63
	A7	S3000	7108	56	9350 / 9650		A47
	A8	S3000	7117	56	9300 / 9400		A61
	A10	S3000 PROP	7323	56	8650 / 9100		849849A9
	A13	DRAG 2001		56	11500
	A14	S3000 S001		56	10100
824003	-1, A1	200 2.5 XRi / 1994-1995	E683 / E556
	-2, A2	175 2.5 XRi / 1994-1995	A7CO
	-4, A4	150 2.5 XRi / 1994-1995	E57A
	-5, A5	200 Pro Max / 1995	8714
	-6, A6	225 Pro Max / 1995	C9C2 / AD49
	-7, A7	150 Pro Max / 1995	A470
	-8, A8	200 2.5 XRi / 1996	5AA0 / 4227
	-9, A9	175 2.5 XRi / 1996	436F / C2A0
	-10, A10	150 2.5 XRi / 1996	1BB6 / 24C5
	-11, A11	200 Pro Max / 1996	A287
	-13, A13	150 Pro Max / 1996	3E97
	-14, A14	175 XRi, 1991	67E4
	-15, A15	200 Offshore / Service	1831
	A16	200 XRi / 1991	C5D9
	A17	225 Pro Max / 1996	5E62				A12		The A12 was recalled for recallibration
	A23	225 Pro Max 15DSH / 1998, 225 Pro Max SS	2E88

[tux974]

The 11350 did not come on a 225 Promax. The only O/S 225 PM was the 15" SS motor and it came with the A23 box for a reason...Be careful read very carefully!!
I wouldn't personally recommend spinning a stock 225PM at 8000+...JMPO.

[Mirage 659]

it would appear that this is a replacment ECU then,
the rods have been balanced and pistons have been top pinned, block has had the oil drive void filled and the the fuel is pre-mixed at the tank , so its not a stock 225PM, all this work is by JSRE

[HStream1]

IMO you should be Just fine. There is probably some Port and chest work done as well!!! If Jay worked that motor it should be a Beast.

[TEXAS20225]

not a promax ecu then its a260 ecu, just reading your post it sounded like it was a 99 promax with a A 23 ecu, not a tweeked on mota