Civic EG

ok so i have a few questions, but i guess im should say im new here. I've read a lot on your forums. im in alaska and theres not many civics up here (that i see) but anywaysi jsut recently got a 93 cx with a h22a4 swap allready done. and he says it has the stock ecu in it. now i think this is the stock to the body. not to the prelude (btw it has the sticker town off so i cant identify the actuall ecu code). so if im correct this means no vtec? also the h22a4 is obd1? and... lol is a p28 a good choice to get for vtec and to socket it, and another is hondata, or ive heard of chrome and some other idk what your call it programs? btw im sorta new in the civic scene but im good with cars. also i just recently my friend ran right into a boulder... so now time for the unwanted honda rot repair -_-

if has the civic ecu in there, chances are that the car will barely even run. I doubt that connections are the same. most likely it is a p13.

is there any way to find out besides the sticker? and also then can i jsut chip the p13 for tuning?

h22a4 is obd2. and if you want to chip ur ecu get a P28 ecu in my opion it works the best

take the top off the ecu and u can identify from there. if you cant post pix and someone will.

ok well it is most definitly obd1 and it has jan 14 93 stamped on one corner
so this is very weird, it seems to run and drive fine, doesnt seem to act like it has a wrong ecu, like running too lean or rich, no smoke out the exhaust so idk. where on the inside can i tell what it is, ive looked for a number or somthing but cant find anything. ill post up pictures later

[img][img]http://i978.photobucket.com/albums/ae262/narlotep/Snapshot_20100915.jpg[/img][/img]

theres no sticker on the inside connector either. so if know what to look for please help me out lol, i was going to get a p28 anyways but i was just wonderin what i got right now.

All Honda ECUs have a part number which is located on the side of the ECU and inside the ECU on the connector. e.g. 37820-P72-A01

The part number consists of three components:

Honda's part number for ECU, which is always 37820
Three characters (which are loosely related to the model of car/engine). e.g P72
Three characters (which are the revision of the ECU) e.g. A01 or G52
The middle three characters are the most useful to identify what the ECU is. Different generation ECUs may use the same characters. e.g. a P72 OBD I ECU is different from a P72 OBD II ECU. Here is a list of common ECUs:

The last 3 characters are broken down into 3 parts. "A" generally is used for US ECUs. "G" is European, and "J" is Japanese. There are other versions of this, but you get the idea. The second digit "0" typically means manual transmission, where a "5" means automatic transmission, and the last digit "1" is the version number.


PG7 : 86-89 Integra (86-87 vac advance, 88-89 electronic advance)
PM5 : 88-91 Civic/CRX DX
PM6 : 88-91 Civic/CRX SOHC Si
PM7 : 89-91 DOHC ZC (JDM 'EF' ECU)
PM8 : 88-91 CRX HF
PR2 : 89-91 ZC (Euro)
PR3 : 89-91 JDM B16A EF8/9
PR3 -J00 or J51 : 92 JDM Integra B16A EF8/9
PW0 : 89-91 JDM B16A EF8/9 DA6-XSi
PR4 : 90-91 Integra LS/GS
PS9 : 88-91 4 door Civic EX Auto
P05 : 92-95 OBD-1 Civic CX
P06 : 92-95 OBD-1 Civic DX
P07 : 92-95 OBD-1 Civic VX
P08 : 92-95 OBD-1 Civic D15 JDM
P0A : 94-95 OBD-1 Accord EX
P13 : 93-95 OBD-1 Prelude Vtec
P14 : 93-95 OBD-1 Prelude Si (non Vtec)
P27 : 92-95 OBD-1 EG JDM Civic 1600 sohc
P28 : 92-95 OBD-1 Civic Si/Ex
P30 : 92-95 OBD-1 DelSol DOHC Vtec Si/EG SiR
P54-G31 : 1997 Honda Accord 1.8 LS
P61 : 92-93 OBD-1 Integra GSR
P72 : 94-95 OBD-1 Integra GSR
P72 : 96-00 OBD-2 Integra GSR
P73 : 96-00 OBD-2 Integra Type-R (JDM & USDM)
P74/75: 92-95 OBD-1 Integra LS/GS
P75 : 96-00 OBD-2 Integra LS/GS
P2N : 96+ OBD-2 Civic HX Coupe
P2P : 96+ OBD-2 Civic EX Coupe
P2E : 96+ OBD-2 Civic DX Coupe
P2M : 96+ OBD-2 NZ Civic SOHC VTEC
P2T : 99+ OBD-? Civic Si Coupe
P5P : 97-00 OBD-2 Prelude Type-S (JDM ECU)
PBA : 97+ US Acura 1.6EL
PCT : 98+ JDM ITR / CTR
PCX : 99+ OBD-? S2000

i know all that... -_- the problem is, that there is no sticker with the number outside, and no sticker with the serial numbers on the inside on the connector either.

just got to c pic.....chipped p28..by stock they may mean its running off a basemap which is like a oem tune

so it is a p28? thats chipped with p13 fuel and ignition tables then??
how can you tell? sorry if im to much of a noob lol

ive been dealing a while...yes p28

turns out its a p05 vtec conversion and its chipped. i talk to some guys at pgmfi and by the mdu code on the chip its a p05

mooze wrote:ive been dealing a while...yes p28

what have you been dealing? ecus?

kross wrote:turns out its a p05 vtec conversion and its chipped. i talk to some guys at pgmfi and by the mdu code on the chip its a p05

the code i cant c in the pic you provided....neither the solder joints.
now its same as p28