Recently I did a mini me swap on my d16y7 block
Everything runs great
I just bought a vtec ecu
and I hooked up the vtec
plugged the ecu in
and now I get a cel code
I saw a post a day or so ago about if the vtec isnt hooked up properly u get a cel code
now i ran a switch to my vtec solenoid and tested it out, it clicks and everything,
I double checked the connections to the ecu, everything is fine
I tried checking the cel code and it doesnt blink, it just stays lit so i dont know what is wrong
On the vtec pressure sensor, does one wire go to ground and the other to the vtec pressure pin on the ecu?
and does it matter which wire goes to ground
i think it might be the ecu, but im not sure
also it could be that i hooked up the vtec to the wrong pins on the ecu
if someone has a diagram to show me which pins im supposed to hook it up to, i could double check it
thanks in advance

 

Step 1.

Step 2. Check your code.

...off of Katman's site.



[Modified by Jackson, 3:35 PM 7/31/2002]

 

yeah i said i checked the code
it doesnt blink at all
just stays lit
and the car doesnt run very well

 

im dlric.. he had the same problem for a while with his

 

?

 

sorry about that
what i meant was it runs great with the old ecu, the one with no vtec
but when i plug the vtec ecu in
it gives me a cel code (which doesnt blink when i try to check it, just stays lit)

 

thanks
ill do that

 

So you used to have a y7 ecu non vtec. You did a minime Y8 head on Y7 block . Then you hooked up the VTEC ECU. Was it a one from Y8? Also from what you typed above it sounds like you didnt kook up your VTEC to your ECU. If this is it , run the wire vtec wire into your ECU. All your problems should be fixed.

 

i ran the vtec wire
i also ran the vtec pressure wire to the vtec ecu
i double checked all the connections with a meter
but i get a cel code
even when i unhook it i get a cel code
the cel code doesnt blink when i try to check it
just stays on
i have no idea what it is
but im suspecting its the ecu

 

Usually when the light stays on, it means the ecu is defective. Try a different one if you are confident on your wiring.

 

yeah thats what i figured
thanks for the help

 

you put on a Z6 head or a Y8? i heard if you run the Z6 you will be off on timing unless you run a cam gear. anyone back me up on this?

 

what year is your civic body and what year is your ECU? There are two OBD2 harnesses in these cars, depending on year/model. Some are NOT plug and play.

 

i have a 97 dx hatchback
put a z6 head on it
and yes i have an adjustable cam gear, my cam timing is fine
i put a 96 ex ecu in it, it plugs in fine
and i know the 99-00 ex ecu's are different

 

then why post if you know everything?

 

ummm..... this might help...make sure u did every thing right.....

http://crx.honda-perf.org/articles/z6swap/z6swap.html

 

If it stays lit with the plug properly jumpered, the ECU is defective.

 

im not saying i know everything
i just knew those points
and thats why im still stumped
i should have explained it better in my first post

but thanks for the help guys
im gonna try and get a new ecu
and see if that works

 

have you changed anything on your car other than you mini-me?? Lets get some recent pics!!