1baddc5

ive just got to the vtec wiring part and i noticed there isnt no pressure switch i searched this on here and no1 give a thoughly explaination of the subject i heard theres a way to ground the switch and the code 22 will go away on the b18c but i dont know exactly to do i know a4 is the vtec solenoid and d6 is the pressure switch i just paid 4800 for the motor and ecu i kinda hate to expletive up my ecu ive read you could use a paper clip to ground it and i just didnt know if you ground a4 and d6 together to a ground or you just ground 1 of them so any help would be greatly appreciated guys thanks

1baddc5

any1 i need some help guys

1baddc5

help any1

Luserkid

You need an oil pressure switch on there. One wire goes to D6 and the other is grounded. If you dont have that switch no vtec.

1baddc5

well how come ive read on here some people bypass that on the jdm itr motors but they dont give a throughly expilation of it

Luserkid

Can you post a link where you read this? The oil pressure sensor needs to be grounded, i believe thats what you read. There is bypasses in some engine management systems but its better just to fix the problem.

Blk00EJ8

I assume you received a JDM ecu with your JDM swap. So just run that.. that's what I'm doing. I too was kind of baffled when I got to that and noticed that it wasn't there. JDM B18C-GSR with a JDM P72.. no codes.

Jdmb16sir2

depending year and motor some jdm swaps dont have it, run the ecu that came with the swap and youll be fine.

tietze

How about a little more info, what year and make car is this going into, whick ECU you are using? Are they both obd1 or obd2?
Like EKcivicEX said, use the Ecu that came with the engine.
When do you get the code 22? i.e. when the key is turned on, or after the vtec kicks in at 6k rpm.
My jdm b18c had a vtec solonoid but no pressure switch, I just used the p73 ecu that came with the engine, apparently it does not look for the pressure switch.
Another option, (i have been told), is to get a "chipped" ECU.

1baddc5

ok guys ive got a 92 civic cx im putting a 97 ITR motor in it they sent me a p30 jdm b16a computer where i wouldnt have to buy the itr jumper harness from obd1 to obd2 and there isnt a pressure switch on the vtec solenoid ive ask what exactly should i do and i figured the about the best thing i could do is to put a pressure switch in it or just switch out the whole solenoid to one with a pressure switch and just wire it in so i just need your opinion of things and ive read that i could ground it the vtec pressure switch and it would take the code away ive read that guys with pressure switches that are bad they could ground or something and it will take the code away without buying a new pressure switch so lemme know what you think guys

1baddc5

as soon as i crank the car up i get the code

1baddc5

also do i need to switch ecus and should i just switch the whole solenoid

1baddc5

bump

1baddc5

bump need to find out the problem thanks guys

digital sol

iTrader: (1)

you do not need to install a vtec pressure switch, some jdm motors do not have the switch and depending on what ecu you are usuing it will look for the switch, realise its not there and throw code 22 which does not allow you to enguage vtec' and throws the ecu into a safe/limp mode, code 22 for those whom have a vtec pressure switch indicates low oil/pressure

i had the same issue with my 00 jdm itr swap, all you have to do is ground the vtec pressure switch, reset the ecu by disconnecting the battery and your good to go'

another way is depending on what fuel management you are running you can disable the code through something like hondata, you can ground the wire under the hood or by the ecu...dosnt make any difference, i had mine under the hood but got tired of looking at it so i relocated the grounding locaiton to the ecu mounting bolt'

i believe the pin out for the vtec pressure switch wire is (D6)

1baddc5

ive tried that d5 pinout to a ground and it didnt work i reset the ecu and everything i ran it all the way to the tranny to get a better ground 2 see if i could get it to go away but it didnt work im thinkin about just going to acura and buying a pressure switch and drilling it and tapping it myself and then wiring it so lemme know what you think or whatever or i just thought about buying a used solenoid but i know vtec on jdm motors is extremely loud when it engages and i was wondering if i got a usdm type r or gsr would it be as loud????

digital sol

iTrader: (1)

its d6 not d5'

you dont need to run it to the tranny bolt, you can ground it anywhere

you probably didnt ground the right wire

and yes, you can hear a change in motor tone when vtec enguages, adding a vtec pressure switch is alot more hassle then its worth and you"ll probably end up with more issues, just ground the right wire and call it a day'

just tap the vtec pressure switch wire on your wiring harness under the engine bay with a t-tap and make a ground terminal at the end, and ground it...reset ecu...bam fixed..a whole 3 minute process and cost like 20 cents for wiring and ground ring

1baddc5

ok i didnt do it like that so i just go to the harness t tap it where the vtec PS is at i think the wire is orange and blue so i just ground one end of the wire to the battery and the one part of the t is hooked to the harness and the other end runs to d6 right??? then all i just reset the ecu and this will take it away

digital sol

iTrader: (1)

i sent you a pm, your a bit mixed up/confused

1baddc5

well i tried the ground it took code 22 away then i got code 21 and 36 i then wired vtec to a4 and it didnt take that code away and code 36 is something dealing with the traction control on jdm ecus or something i need help bad guys