Ok well i recently bought a SIR2 b16 swap and it came with everything. Plus a p30 ecu which is a .

I've been driving it for about a week now and mike the guy who does my engine work was looking on the internet an came across a site to tell wheather or not your p30 is AT and 5spd. And it turns out that i have been runing a AT p30 for about a week. Yet it still ripssss. and i also tried my buddies p28 that was chipped though that pulls way harder in vtec all the way up to 8500.

so im courius how much different is the jdm p30 5spd from the AT p30???

Casue like in the sir1's the AT compared to the 5spd. ecu there is a hardcore noticable difference overall.

Anyone go from a AT p30 to a 5spd p30???

 

I'm pretty sure you would be better off with the MT ECU, since you have a JDM comp you probably aren't gettin a CEL 20 indicating that you have an automatic transaxle lockup because it doesn't see your AT solenoids... Anyways as for the way the motor runs, I'm not positive but your fuel and timing maps are probably not as aggressive as the MT ones... What does your car rev too?? Does it cut at 7800rpm??? Did you find that your ECU was an AT by the external stamp 37820-P30-xxx or something of that nature... or did you open it up and find that above the auto transistors were there.... the ones kind of above the voltage signal conveters... Just wondering how you know for sure... Cuz you say it's running good... Good Luck

 

SIR I and II are nothing more then trim levels (ie. GS vs LS integra)

5spd ECU uses different maps. for one its more aggressive as it is tuned for cams which are longer in duration and higher in lift. rev limit is 600rpm higher and vtec point at 500-800rpm later.

yes you can reprogram a P30 auto to 5spd or even to another program (ie. spoon), which is mild and improved upon over factory but will still pass emissions and not put strain on the parts (02 sensor, cat and so on)

check my sig

 

hey man whats that site?

 

There are a few ways to tell what you have right away. Since this covers many different ECU's, this will go over about 90% of the different types available today. All Honda ECU's have a part number which is located on the side of the ECU and inside on top of the ECU connector. (example 37820-P72-A01)

The middle three characters are the most useful to identify what the ECU is (example 37820-P72-A01)
The 37820 is the general Honda part code for Engine Contol Unit or Engine Control Module.

P72 is the code for the engine type, in our case it's a GSR.

A01 is broken down into 3 parts. "A" generally is used for USDM ECM's. "G" is european, and "J" is Japanese. There are other versions of this, but you get the idea. The second digit "0" usually means manual transmission, where a "5" would mean automatic transmission, and the last digit "1" is the firmware version number. I've seen these from "0" up to "3".

 

I found out it was a AT ecu because we took the cover off the ecu and then the knock sensor board that was covering the part of the board we needed to see and there was the chip with bronze tape on it that assured us it was AT. my car rev limiter is 8200, adn vtec crossover is at 5700, this is reading with a stock factory tach so i might be OFF.

http://www.jdmfan.com/index.php?information=jdmatP30ecu


[Modified by 95cx, 3:11 PM 1/24/2003]

 

so i have 2 p30 ecu's one has 37820-p30-932 and the other has 37820-p30-900 can anyone tell me what these are? thanks.

 

hes right, the auto b16a has mild cams, 7300 rev limit and the maps are made for the 155hp motor. I know becasue I have this swap in one of my cars.

 

the chip has nothing to do, if its auto or 5spd. honda used chips on some variants of the ecu. as an update to a program

basically look at the last three digits of the code. ie.
37820-P30-XXX

if (XXX=900, 901, 902, 9XX || J50, J51, J52 || N51, N52.....)
then its its an auto ecu.

if the numbers are 000, 001, 002....then its a 5spd.

 

[
basically look at the last three digits of the code. ie.
37820-P30-XXX

if (XXX=900, 901, 902, 9XX || J50, J51, J52 || N51, N52.....)
then its its an auto ecu.

if the numbers are 000, 001, 002....then its a 5spd.
[/QUOTE]
thanks for the info.
so the numbers i listed above mean i have 2 auto p30s?

 

(Mike Lindquist) I did 95 cx's swap and i was on jdmfan.com and went to information and found how to tell if it was a 5sp or AT there.


Mike Lindquist A+ Foreign

 

i got a p30 5speed ecu if you looking for one

 

wanna trade for my AT one???

 

naw dont think so but you can get it with $$$