CRXREFIC

my ecu is throwing a vtec spool solenoid valve code(#21)

everything is connected but i looked up a diagram and if i had a b16 i would need to hook up a wire to my ecu and to the knock sensor would this be for a d16 also?

and im missing another wire that i think needs to be connected to the ecu and to the vtec pressure switch

so am i lookin at wat needs to be fix or is there anything else?

reyracerx

first of all what car do you have? and what obd it is?

second d16z6 dont use knock sensors. if your car wasnt and ex or si depending on the model then you will need a vtec ecu and also wire up the vtec solenoid and preasure switch to the ecu.

CRXREFIC

got a 94 civic hatch dx model with a si d16z6 vtec swap in.... obd 1

i pulled up a diagram for a b16 (jdm eg hatch) and since there same wiring output ecu its showing that i dont got a knock sensor wire and a vtec pressure switch

it also have the vtec ecu

CRXREFIC

bump anyone can confirm the answer? just hook up the vtec pressure switch since there is no knock sensor

CRXREFIC

ok plz help with this post....

i did a engine code read only # i got was 21 vtec spool solenoid but i dont got this vtec pressure swich wired

is this right?

1992Si

May be I'm missing something. If you have a D16z6 why are you using a B16 wiring picture ?



Have you tried pulling the green connector and pugging it back in. That worked for me once after a engine replacement.

It sounds like you have the ECU that came with the z6, is that correct ?

CRXREFIC

i got another ecu that is for the d16z6 vtec engine

the green plug.... it wont go in all the way i think cause.... when i try to connect it it wont hook in all the way i can easily slid it back off without unhooking it

reyracerx

what green plug? obd1 doesnt use green plugs...whats the ecu code youre using. it should say it on the side of the ecu.

if you dont have a p28, p30, p61, p72 or p08 then you do not have a vtec ecu. also from what i remember obd1 only has grey plugs for obd1 ecu wiring. green plugs is obd0.

1992Si

All our D16z6's had green plugs on the solenoid.

Just like the B18's

92ehatch

did you run wires for vtec?

94's did not come prewired for vtec, only 92 did

http://eastcoastchopstix.com/forum/v...php?f=24&t=500

that link shows what you need to know, scroll down to post 3 or 4 to find shock tower wiring for vtec

reyracerx

now i understand. all this time i thought he was talking bout the ecu plugs.
thats the vtec preasure switch.

OP make sure you have it wired right.

vtec solenoid to A4 on the ecu
vtec preasure switch to D6 on the ecu