well ever since ive had this dohc zc in(nov.01) its been spitting a code 1. which means oxygen content..im reallly getting tired of it and i know i shouldnt been driving it like this every day. so i need desperate help on fixing it!!!
no im not stupid ive tried everything i can think of!! heres a list of wat ive tried:
3 new o2 sensors--bosch/1 honda
fuel injectors
adjustable fpr
mds--maybe im not getting spark
ive reset the ecu each time i did sumtin to try and fix it...doesnot work..once it gets hot the light comes on!!

the only thing i can think of is the distributor or the wiring..anyone else know wat it could be??
i had the shop rebuild my disty since it was broke when i got it..he said he put it together with all kinds of laying around parts from past honda swaps.
and the wiring i bought from someone who said it was a hasport conversion..so its not my original..

so can anyone help on how to go about finding the problem??

 

up

 

so i guess no one reallly knows ther chit about obd0 civics

 

Well, since you asked nicely... Fuel pressure does play an important part in the trouble shooting guide. Also mentioned is the ground connections at the thermostat housing. Other than that, my book says to check the voltage at the ECU C16 (+) and A18 (-) terminals for voltage above 0.6 at 4000rpm, and below 0.4 on closed throttle deceleration. Your ECU terminals may be different since this is supposed to be for "88-91 Civic except 88 CRX".

 

well, try this.
Buy a bosh ($19) single wire O2 sensor.
Run the wire straight to your ECU, bypass the wiring harness.
As posted before, it goes either on B16 or B8.
If that doesn't fix it, then you are either running too rich or too lean.
Take it to a dyno with a wide band O2 sensor, that way you'll know what's happening.

 

It would help to know what setup you have- ECU??

 

im running the 88 teg ecu..but every ecu ive tried still gives me the code..
so ill try and rerun the wire tomorrow...but wat pin on the ecu do i run it to??
i was lookin at my hanyes book but it doesnt specify a pin..

 

ok im looking at the haynes better this time.. the o2 sesnros wire is white and goes to c16. also it says its conected to a18..which if i followed the diagram right..thats a ground..
so i should rerun c16 correct..
wat bout a18??

 

O2 signal is in location C16 (corner of the connector) and is a White wire.

 

Only run it to C16.

 

sweet so i cant miss it then..ill try let u know wat happens...

 

A18 is a ground for the ECU. Surprisingly your Haynes is correct.