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View Full Version : Help - Ecu Troubles



onabuzz
22-08-2007, 05:53 PM
hey was wondering if any one could help, i just put a b16a into my civic which has a obd2b loom wired into it.

so that i didnt have to change the whole wireing loom, i changed the dizzy and fuel rail to obd2b.

i got my self a conversion harness so it could run the stock crx ecu obd1, but that doesnt work to well as the engine light comes straight on and vtec doesnt engage.

i also have a ek9 ecu, when i plug that in, it seems to be working pretty poorly as well, with a late very weak vtec cut in,. and after about 10 mins of driving the light comes on..

iv tried my power fc from my other car in there just too see what happens, and it works great.

any suggestions on what to do please help! i was thinking a ek4 obd2b ecu, ? any one know if this may work? or if any one knows why the Stock OBD1 ECu doesnt work, or how i can get it to work back like stock!?

cheerrsss

|N|
22-08-2007, 05:56 PM
wat code is it giving?

oh and i do have obd2b ecu right here

onabuzz
22-08-2007, 05:59 PM
how do i chek what code its giving? yeh i wouldn mind trying out ur ecu to see if it works

onabuzz
22-08-2007, 06:37 PM
ok just done a test with my obd1 ecu and its spitting out error 22 and 14

22=VTP Switch "VTEC Pressure Switch
14=EACV, "Electronic Air Control Valve

ECU-MAN
22-08-2007, 07:31 PM
read through the link bellow and click on the code name for diagnostics for that fault. it covers the entire PGMFI circuit


http://www.ozhonda.com/forum/showthread.php?t=67113

Honda_CRX
03-09-2007, 11:19 AM
read through the link bellow and click on the code name for diagnostics for that fault. it covers the entire PGMFI circuit


http://www.ozhonda.com/forum/showthread.php?t=67113

Thanks heaps, lots of help