PDA

View Full Version : What ECU is this?


aznstyler
03-04-2010, 06:17 AM
Hey guys, i just brought a eg with a b18c in it. im the third owner, previous owner doesnt know anything about the conversion, atm my vtec isnt crossing over so i wanna do a ecu check or check if the ecu has been changed but when i ripped the carpet off i found this.....

http://i43.tinypic.com/ip2gdv.jpg
http://i43.tinypic.com/2lw2jbn.jpg
aznstyler
04-04-2010, 06:27 AM
anyone please help me !!
VTec1987
04-04-2010, 10:19 AM
Is the motor b18c type r or non type r.

From the picture above, no 1 can tell you what ecu it is. On the side of the ecu will have a code on it lyk p72,p28,p06,p08
VTec1987
04-04-2010, 10:22 AM
If the motor is b18c2(vtir) it is common that u cant hear the crossover
aznstyler
04-04-2010, 05:03 PM
does that wiring even look right..? the two blue plugs were just like that i didnt un plug it..
VTec1987
04-04-2010, 05:42 PM
Yes its normal, if u answer some of the question then ppl can help ya out
aznstyler
04-04-2010, 07:51 PM
b18c1 i will check the number soon!
aznstyler
05-04-2010, 11:35 PM
Its P-72 but the two blue plugs are not plugged in.. i can not located anywhere to plug them
GSi_PSi
06-04-2010, 01:07 AM
they arent meant to be plugged in. you have B18CR ecu. Have you got a check engine light ? (CEL)
use a pin and stick either end inside one of the blue plugs and put ur your to prime and give us the check engine light code. to determine this you must use the CEL Code guide which is in a diy in the forum.
VTec1987
08-04-2010, 10:47 AM
they arent meant to be plugged in. you have B18CR ecu. Have you got a check engine light ? (CEL)
use a pin and stick either end inside one of the blue plugs and put ur your to prime and give us the check engine light code. to determine this you must use the CEL Code guide which is in a diy in the forum.

No he doesnt have a B18CR ecu, type r ecu are p73

P72 is b18c2 motor, thats the right ecu for your car since you have a b18c1(usdm)=b18c2(audm).
It is common that you cant hear the crossover in these motors, you would need aftermarket parts lyk intake\exuast to hear the crossover.

Those 2 plug don't connect to anything
[[d a n n y]]
08-04-2010, 03:21 PM
those 2 plugs are service port to check CEL (check engine light)
so dont worry about it
usually if Vtec doesnt cross over it should give you a yellow orange amber engine light
is that coming up?
tinkerbell
08-04-2010, 04:11 PM
looks like it has had a VAFC connected up at one stage in the past...
aznstyler
09-04-2010, 05:26 AM
so does that mean i have to hook up a vafc and reset the settings??
tinkerbell
09-04-2010, 09:13 AM
no, it means that the wired might not have been reconnected properly after the VAFC was removed. (see the red 'squish' connectors? they are not Honda ones)

the VACF does not effect the ECU settings.

you also seem to have some water damage down there.
aznstyler
28-04-2010, 12:43 AM
OK guys i have found out the problem, the ECU is a auto ecu.
ECU-MAN
28-04-2010, 09:24 AM
does it have a 4th connector ith pins in it that are not connected ?


sounds like its a OBD1 AT/PGMFI ECU
aznstyler
28-04-2010, 08:44 PM
does it have a 4th connector ith pins in it that are not connected ?


sounds like its a OBD1 AT/PGMFI ECU


Correct, that caused the tapping noise
aznstyler
28-04-2010, 08:45 PM
does it have a 4th connector ith pins in it that are not connected ?


sounds like its a OBD1 AT/PGMFI ECU


Correct, that caused the tapping noise
ECU-MAN
29-04-2010, 10:18 AM
I have seen these ECU's before

be vary carefull with them as they are wired different to the OBDI standard, they pulse the vtec solenoid as if it was an AT solenoid