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maaaaark
16-05-2012, 10:30 AM
yo, just did a swap from an 18a to C. went hydro and used a p28 obd1 ecu with harness. The engine originally is an obd2. My da is obd0. Swap is done but engine light is still on. IS THIS TYPICAL OF ENGINE SWAPS SINCE THE ENGINE WAS obd2, the car is obd0 and the ecu is obd1 with all the wiring and shit?

the code was a misfire @ cylinder 1 however my mechanic says that it doesnt misfire or sounds like it.

i want my CEL off!

mocchi
16-05-2012, 11:26 AM
not its not typical in swaps. check what cel it is
must be something wrong with your wiring

ECU-MAN
16-05-2012, 12:20 PM
tell what what code is in your ECU

P28 ECU wont have a code for misfire

use the below link to find your code

http://www.ozhonda.com/forum/showthread.php?67113-DIY-PGMFI-Diagnostics-Codes

maaaaark
16-05-2012, 10:11 PM
tell what what code is in your ECU

P28 ECU wont have a code for misfire

use the below link to find your code

http://www.ozhonda.com/forum/showthread.php?67113-DIY-PGMFI-Diagnostics-Codes

ECUMAN, he said its a 71.

maaaaark
16-05-2012, 10:12 PM
ecu man, the code wasnt on your link

maaaaark
17-05-2012, 09:19 AM
found it.. its 7 quick flashes and one long one.. so its the VSS

bboyzell
17-05-2012, 09:54 AM
Fun. do you know if the VSS in the gear box is electric or cable?

If electric, check this out to find which wire you need to check.
http://honda-tech.com/showthread.php?t=2321014

If you are cable, the VSS pulse is created in your cluster, and feeds back to the ECU via a cable.
Either that is broken/missing/Cluster doesn't generate the pulse for the ECU

ECU-MAN
17-05-2012, 11:22 AM
if you have 1 long flash then 7 short, if so then that is code 17

if you have 7 short pause 1 second 1 long pause 1 sec then 7 short and so on, you have codes 7 and codes 1

but is does sound like code 17 VSS.


as above wire the VSS from the cluster to the ECU and you will be fine.

maaaaark
17-05-2012, 10:01 PM
Fun. do you know if the VSS in the gear box is electric or cable?

If electric, check this out to find which wire you need to check.
http://honda-tech.com/showthread.php?t=2321014

If you are cable, the VSS pulse is created in your cluster, and feeds back to the ECU via a cable.
Either that is broken/missing/Cluster doesn't generate the pulse for the ECU

I think that might be it . but heres another problem.. i went down to the shop to check it myself. now it came up as 7 quick flashes which is now a TPS problem fml

maaaaark
17-05-2012, 10:02 PM
went down the shop to check it myself.. codes is now a TPS problem!

ECU-MAN
18-05-2012, 09:15 AM
follow the diagnostics in the below link

http://www.ozhonda.com/forum/showthread.php?67309-DIY-PGMFI-Diagnostics-Code-7-TPS