I am doing a gsr swap on my brothers 91 DA and i got a pr3 instead of using the p72 that came with it. I am wondering how do i wire the vtec now and what pins is it. What else do need to wire if there is anything? I need some help this is my first swap. Thanks

 

any info

 

Vtec solenoid= A8
Vtec pressure switch = B5
2nd o2 = C8
Knock = B19

 

cool thanks now how do i read the pins across i read A is the biggest, then b is the middle and C is the last. How many O2 sensors do i have to run besides the one wire one it has already?

 

Pins on the top row are odd,pins on the bottom are even.
1 3 5 7 9 11
2 4 6 8 10 12 etc..

You need two o2 sensors..both are one wire.

 

thanks

 

ok went to put the ecu in and followed what you said and i ran all the pins ecept for the knock......i went to b19 and there was already a wire there? the car is a 91 ls and idk if it had a knock sensor...........i hate computers and wiring


Modified by ITR.#1446 at 4:30 AM 5/2/2005

 

anyone?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR.#1446 &raquo;</TD></TR><TR><TD CLASS="quote">ok went to put the ecu in and followed what you said and i ran all the pins ecept for the knock......i went to b19 and there was already a wire there? the car is a 91 ls and idk if it had a knock sensor...........i hate computers and wiring
</TD></TR></TABLE>

what year is the DA you're performing this GSR swap on?

also, check out these wiring diagrams:

OBD-0 (89-91 vehicles):
http://www.ff-squad.com/tech/w...1.jpg

OBD1:
http://www.ff-squad.com/tech/w...5.jpg


Modified by Katman at 1:41 PM 5/3/2005

 

its obd0 the link you posted was down.....idk what to do

 

ok the pinouts that were given to you were wrong, those are pinouts for an OBD1 ecu.

OBD-0 VTEC pinouts are shown here:

 

thanks bro i have no clue when it comes to ecu's and stuff.......the only prob i have know is i have an extra conector on the wiring harness in the back where oil temp sensor is......i have no clue as to what i did wrong there

 

one ?.........in the sec and third pic hte spots are filled and it has a wire, do splice the wire or what do i do???

 

also one more question............it say one wire for the oil pressure but 2 wires come out of the plug is one ground??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR.#1446 &raquo;</TD></TR><TR><TD CLASS="quote">also one more question............it say one wire for the oil pressure but 2 wires come out of the plug is one ground??</TD></TR></TABLE>

yes, one is power one is ground, usually the black wire is ground. You can just ground the ground wire to the body of the VTEC solenoid.

 

cool now for the other question about the wires already there and then i think im good.....thanks

 

i just tried to do b19 and it already has a wire tho.......what is the iab solenoid also?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ITR.#1446 &raquo;</TD></TR><TR><TD CLASS="quote">i just tried to do b19 and it already has a wire tho.......what is the iab solenoid also?</TD></TR></TABLE>

IAB is for the GSR engine, controls the secondary butterflies in the intake manifold. If you don't have a GSR intake manifold or ecu, no need to worry about it.

You sure B19 isn't empty? looking at the plug the right way (from behind as the my diagram shows?)

I'll have to check what B19 pin out is exactly....

 

yea im running a skunk2 mani.............yea idk there was a wire im sure

 

ok went g2ic and looked up ECU pin outs..........b19 on the pr3 is the knock sensor and i said there was a wire there..........i looked it up under the original pr4 and it said P/S Oil Pressure Switch.........what does that mean and on the pr3 its c9 pin out but on the pr4 the pin out is PA sensor............is that power steering i dont remember what wene to what exactly.....anyone helo me out please im so close to bein done but yet so far...

 

also just saw a10 pressure regulator cutoff solenoid valve..............i noticed before i removed the old motor the vacuum to the fuel pressure reg ran to the solenoid first but on a regular 94-01 teg it goes straight to the intake mani.........which way should i run the vaccum hose to it???

 

any info for me im really dumb

 

help me