Sleepy_Red_hatch

this is how the situation goes. i have a 92 civic VX, i have a JDM D15B ready to drop in and an automatic JDM P08 ecu for it (the motor was originally auto)
what i did was this:

TESTED THE ECU'S TRANSMISSION COMPATIBILITY:
to test the ECU's transmission of origin, i plugged the auto ecu in my 5-speed vx, and checked for codes if any. it threw:
-Auto lockup solinoid
-Electronic Load Detected

CONVERTED TO 5-SPEED:
-desoldered RP17 on the back (havent had the oppertunity to test it out)

WHAT I NOTICED:
i did NOT throw a O2 sensor code. meaning the 5-wire 02 sensor was relaying info to the 1-wire 02 sensor ECU.

WHAT I NEED TO KNOW:
im going to depin the 1-wire plug from the D15B's sensor, i need to know which position this wire has to go into the ECU at, and which position on the 5-wire plug goes there.

THINGS THAT ARE HELPFUL:
USDM P07 wiring diagram (@ the ecu)
JDM P08 wiring diagram (@ the ecu)
which pin on the ecu needs a feed from a 1-wire O2 sensor
which position in the 5-wire O2 plug will bring me to that pin.

thanks HT,
SRH

Sleepy_Red_hatch

up

Relic1

JDM P08 Auto to Manual: remove rp17 remove rp18 add a jumper to rp18
not done there yet...

to connect to D14 (O2 signal at ECU) use the orange/blue wire at the VX's O2 plug. It should have connected to the white wire on the O2.
no wire switching at the ECU required.

you didn't throw an O2 code because the VX's wideband must have sent just enough of a faint signal to fool the ECU into thinking that the O2 is there. Far from a correct reading though.

Sleepy_Red_hatch

do i have to remove RP18? cant i solder in a jumper? it will bypass RP18 anyway but thanks on the 02 question

Sleepy_Red_hatch

up. i have 2 diffrent answers now...

Relic1

the lazy way is to jumper RP18 and leave it in the board. yes that does work. I've done it several times with no problems.

Sleepy_Red_hatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Relic1 &raquo;</TD></TR><TR><TD CLASS="quote">the lazy way is to jumper RP18 and leave it in the board. yes that does work. I've done it several times with no problems.</TD></TR></TABLE>

but rp17 had to come off either way right?

Relic1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sleepy_Red_hatch &raquo;</TD></TR><TR><TD CLASS="quote">

but rp17 had to come off either way right?</TD></TR></TABLE>
yep, remove RP17, jumper across RP18.

Sleepy_Red_hatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Relic1 &raquo;</TD></TR><TR><TD CLASS="quote">
yep, remove RP17, jumper across RP18.</TD></TR></TABLE>]

im throwing code 20, you think that's why? i havent jumped it?

Relic1

doubtful, I don't think the ELD has anything to do with those resistors. But it may cause it.