.BigSexy

ok, so I am picking up my h22 in a couple of weeks, and I am also picking up a p28. the question is, do I wire vtec to the same pins to for the p28 as I do for the p13?
i found this on a thread this is the p13...


Top side w/ the sticker
---------------D6-------------------------------------A4---
l --------------\/---- -------------- -------------------\/-- l
l l oo . . . . . . . . o ll . . . . . . . . ll oo . . . . . . . . ooo l l
l l oo . . . . . . . . o ll . . . . . . . . ll oo . . . . . . . . ooo l l Front of Car
l -------------------- -------------- ----------------------- l
-------------------------------------------------------------
Floorboard side

(Hope that turns out right.)

A4 = Vtec solenoid------------------Large pin
D6 = Vtec Oil Pressure Switch-----Small pin


and then here is the p28....



onl;y difference I see is the knock sesonor, does the obd1 h22 not have a knock sensor?

reebs

im not good enough to know, when are you going to finish the k swap in the eg?

.BigSexy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by reebs &raquo;</TD></TR><TR><TD CLASS="quote">im not good enough to know, when are you going to finish the k swap in the eg?</TD></TR></TABLE>

have to get one car running before I can work on the other. give it time, Im having DonF fix the head for me towards the end of the summer. I am shooting for summertime next year. may not be something nice to look at, but u wont have to look at it for long.

ZacCarter

iTrader: (1)

That wiring diagram is for a civic or teg.

.BigSexy

but its still for a p28 right? i figured so long as its a p28, it didnt matter. but I just found out that only the f series didnt have a knock sensor in the preludes, so now im gonna have to wire that **** up, if anyone has an extra knock sensor plug laying around for an h22, let me know

ZacCarter

iTrader: (1)

here's where i would start, to my knowledge all the harnesses are pretty close to the same, i think the only think the ludes has on top of the civic engine harness is the egr stuff. so the p13 harness should plug right into the p28, i would look and see if the ludes are prewired for vtec, as the civcs are, the knock sesor is a one wire deal, the person that chips your ecu can delete knock on the program, so you wont have to bother with hooking it up.

Ventolin

You can use a knock sensor off of a different motor, I believe. It goes underneath the IM on the block, just run a wire for it.

ZacCarter

iTrader: (1)

if you do wire it make sure you use shielded wire.

.BigSexy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ZacCarter &raquo;</TD></TR><TR><TD CLASS="quote">here's where i would start, to my knowledge all the harnesses are pretty close to the same, i think the only think the ludes has on top of the civic engine harness is the egr stuff. so the p13 harness should plug right into the p28, i would look and see if the ludes are prewired for vtec, as the civcs are, the knock sesor is a one wire deal, the person that chips your ecu can delete knock on the program, so you wont have to bother with hooking it up.</TD></TR></TABLE>

i dont have a p13 harness. from what I know, there were no pre-wired vtec prelude models. could be wrong though. but from what I have heard, if the knock sensor isnt hooked up, it could mess with the timing

ZacCarter

iTrader: (1)

It will pull timing if it detects knock. but it takes awhile for the car to realize there is no knock sensor hooked up. So the code devleops after awhile. If i were you id just delete it out of the program with uberdata.

.BigSexy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ZacCarter &raquo;</TD></TR><TR><TD CLASS="quote">It will pull timing if it detects knock. but it takes awhile for the car to realize there is no knock sensor hooked up. So the code devleops after awhile. If i were you id just delete it out of the program with uberdata.</TD></TR></TABLE>]


yeah, probably the easiest way. what is the knock for anyways? i will just have Ben(shifty35) delete the knock program out of the system

ZacCarter

iTrader: (1)

hondas knock sensor blows ***, it pulls timing before its to late anyways. usually its toast by then.

.BigSexy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ZacCarter &raquo;</TD></TR><TR><TD CLASS="quote">hondas knock sensor blows ***, it pulls timing before its to late anyways. usually its toast by then.</TD></TR></TABLE>

but what is the point of the sensor?

ZacCarter

iTrader: (1)

incase some one uses shitty gas, shitty gas is the only thing that will make it knock hard enough.

.BigSexy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ZacCarter &raquo;</TD></TR><TR><TD CLASS="quote">incase some one uses shitty gas, shitty gas is the only thing that will make it knock hard enough.</TD></TR></TABLE>

ha! then whats the point?

Adam.

If everything you have is OBD1 it is the same. If you have an OBD2 motor/harness and an OBD1 ECU you will need a jumper harness.

SteveoBA8

look in the prelude-faq's-how to wire vtrak.