ok,i had a b16a motor in my 91 hatch,well i just had a new motor installed and
the guy sed there was no wire for my o2 sensor. i only have the one and it was there when i left,so know i dont have one and my car is running reallly rich.does any one know what color wire it is in the harness so i can try and reconnect it? also my timing is way way off,and the hood of the car ses there is a yellow plug i can pull to get base timing set,i have been looking for 45 min and cannot find it.common guys this needs to be corrected before every one in my house is to drunk to help.

 

what wire harness and ecu?

 

pr3 ecu, should be the jdm harness that cam with sir1.

 

You should have used your stock harness that came with the car. The jdm harness was probably all cut to **** and that is why you can't find the wires you are looking for.

 

C01 BLU/GRN CKP P CYL sensor (1)
C02 BLU/YEL CKP M CYL sensor (2)
C03 ORN/BLU TDC P TDC sensor (1)
C04 WHT/BLU TDC M TDC sensor (2)
C05 RED/YEL IAT intake air temperature sensor
C06 RED/WHT ? ECT coolant temperature sensor
C07 RED/BLU TPS throttle angle sensor
C08 O2S Dual O2 Sensor (JDM)
C09 RED/WHT ? PA atomosphere pressure sensor inpu
C10 GRN/WHT ? BKSW brake light switch
C11 GRN/WHT ? MIL ground
C12 GRN/WHT ? SG2 TPS GND
C13 YEL/WHT VCC1 TPS 5V
C14 SG1 MAP GND
C15 YEL/RED VCC2 MAP 5V
C16 WHT O2S oxygen sensor

 

ok so its white,thank you. there is a white wire there its just barely noticable.the swap was done long before i bought this car, i just had a replacement b16 put"the other on was shot" now to the next question.wich plud do i pull to get base timing?

 

bump,my help is half way through a case

 

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PHOBIA &raquo;</TD></TR><TR><TD CLASS="quote">ok,i had a b16a motor in my 91 hatch.... .....and the hood of the car ses there is a yellow plug i can pull to get base timing set,i have been looking for 45 min and cannot find it.</TD></TR></TABLE>

for a 90-91 the base timing conecter is a blue plug right under the blower motor on the passenger side under dash under carpit.

 

great,know i just discoverd my car wont start.i must of fried the starter trying to do the compression test,either that or the ignition switch just went out.

 

on the pr3 just trace the wires for the 2 o2 sensors

but if you didnt use your stock harness, then the interior colors wont match that under the hood, which is his point here:

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by deftones0817 &raquo;</TD></TR><TR><TD CLASS="quote">You should have used your stock harness that came with the car. The jdm harness was probably all cut to **** and that is why you can't find the wires you are looking for.</TD></TR></TABLE>

but since it came that way, you need to look at the plugs and run your own wires:



you can see the pins there you need to check.

 

It sounds like the 2nd O2 sensor was never used on this swap. You need 2 O2 sensors to make the JDM PWO and PR3 ECU's to work right, wiring them together will not work. Either mod your ECU or have a 2nd O2 sensor welded to your header.

 

my ecu is chipped with some program,it used to be a auto because on he top is A/T written in red letters,i have no speed governer or rev limiter.im just to lazy to crak it open and find out, also just to mention even with no o2 sensor hooked up im not throwing a code?

 

Depending on the program your ecu is chipped with, it may have o2 sensor feedback disabled alltogether. ie: open loop.
Thats not uncommon.

 

ok i think i found the blue plug its right next to the passenger side door right under the dash,but its only one side.i cant find the other connection.

 

thats it my friend just jumper that with a metalic item (a small paperclip works) with that shorted the computer can not change the timing so u will have normal power at idle but as rpm goes up the power will lean out b/c it cant advance the timing.

 

perfect thank you verrry much,and thats not cuz im drunk.i appreceate the help