ECU questions

[type_one]

Hi guys, need help on some ECU issues..
What is the code for 92' EG9 B16a? is it P30?
What about EF's B16a? Any difference between the two?Are they interchangeable?

More specifically..lets say my EG9, B16a(Big V) is running on an EF ecu.would it affect anything?(if that is even possible to start with)..

Are there any markings or anyway to differentiate both ecu's, on the ecu's themselves?

Assuming i'm running the correct ECU, is it OBD-I or OBD-II? what's the difference?

thanks.....

 

[hattech-v]

it shud be P30 for eg9 n its OBD1...
no problem to use any ecu as long as it suite to the wiring n setting...

 

[xxxx]

it depends on ur wiring....
if u r using an EF's wiring, then u should be using an EF's ECU....if, EG's wiring, then EG's ecu...


EF ecu = PW0 or PR3 ........OBD0
EG ecu = P30 ....................OBDI

both cannot be exchange becos of the socket of the wiring is not the same.

u can find this code stated on the sticker at the side of the ecu.

 

[xxxx]

ur car is an local EG with engine transplant? if yes, tranplant with EF or EG's halfcut?

 

[type_one]

well actually the case is this..
mine's a jdm eg9, but when i went to my mech, it was revealed that the engine in it was an EF b16a, (put in by the previous owner, must've fried his engine or something) but with a Big V valve cover..(aka Big Time Con Job).. anyways, i transplanted another b16a from EG9 half cut.. The thing is, my mech was supposed to use the ECU from the half cut, but he used my previous one.. so i'm rather in the dark about which ECU i'm actually running now..

 

[crower75]

so where's the ECU from the halfcut now ?

 

[hattech-v]

better get the ecu fr hafkat. it shud be P30. u can check it by urself...

 

[J101]

>What is the code for 92' EG9 B16a? is it P30?
yes P30. Square Box

>What about EF's B16a?
PR3. Rectangular Box

> Any difference between the two?Are they interchangeable?
Base maps and honda optional devices.

>More specifically..lets say my EG9, B16a(Big V) is running on an EF ecu.would it >affect anything?(if that is even possible to start with)..
If the long block runs entirely with EF wiring loom and EF ECU, its fine. Wiring loom includes distributor system.

>Are there any markings or anyway to differentiate both ecu's, on the ecu's >themselves?
As mentioned above. Plus the sticker at the side of the ECU.

>Assuming i'm running the correct ECU, is it OBD-I or OBD-II? what's the >difference?
EF - OBD0
EG - OBDI
EK - OBDII
The ECU size is difference. The maps are different. The harness also different.

 

[xxxx]

if change engine kosong only from Ef then it's ok, but it depends on the wiring tat u r using la....

just go n check ur current ecu. there'll sure be a sticker with some codes on it. read it n let us know.

how long hav u own ur EG? how do u know urs is a JDM EG9?

 

[shiroitenshi]

As for where the code is.. This is an ecu box sticker taken off my car. Sorry blurry.. it was hard work trying to fit the cameraphone behind the ECU box at the footwell. (aiseh.. malunya.. interior surface rust still haven't cleaned up!)

As for knowing authentic JDM EG9 or not.. check the tag in front of the radiator.. it's blue in colour, in japanese, and the tag number is the same as your chassis number.

 

[hattech-v]

more clear version....

 

[shiroitenshi]

You should have done it earlier lah!! PCT=98+Taip-R ECU. Hehe..

Anyway... your ECU not bolted on ah? Mine is.. too lazy to get a spanner out and remove it.

Oh... another random info on ECU OBDs

OBD I = only honda use this standard
OBD II = a more generally used current standard. If I'm not wrong.. OBDII standards are also used for other makes like ford, etc. etc (can't think of any other make this late at night)

 

[hattech-v]

its easy for me to take out the ecu when i leave my car at parking...
haha

 

[shiroitenshi]

its easy for me to take out the ecu when i leave my car at parking...
haha

Haha.. me not worried about car getting stolen.. (car old oledi mah!) more like the small parts inside. seats, gearknobs, steering, etc. etc.

 

[hattech-v]

haha nola... i'm not going to do that...
that pic taken when i test blitz ecu...

 

[shiroitenshi]

how was the result? What's the revcut? What is the vtec engage point?

Last year went around testing ECU with my friends EK9... I think finished one tank in a matter of hours.. spoon, mugen, custom chip, etc. etc.

The result.. spoon one was better than mugen (according to the ownerlah.. my opinion doesn't matter) Which for me was strange, since his car is full mugen (extractor.muffler, filter, etc. etc... go figure!

 

[hattech-v]

the result, i'm not happy with it... stock better... haha

 

[type_one]

alright..will check and see.. the halfcut ecu is still with my mech.. anyway mine is JDM, blue tag, chasis number all in order... thank y'all for the help...