ghosthatch

honda gurus... help me out

I have a b20z obd1 conversion swap in a 1990 civic dx with a full wire tuck. i did everything myself. im not a certified mechanic. i dont know general mechanics but i can put stuff together and i know how to solder wires together.

ECU: OBD1 P75(USING),P28, P28 HONDATA, P28 CROME (ALL THE ECUS I HAVE)

i was recently having troubles with the car starting and the fuel pump not priming... after a lot of tail chasing...come to find out. the ecu harness was damaged.

NOW, after ive gotten a new harness. it's started. i have codes 9, 16, and 41:
#9 - cyp... from what ive gathered this is usually correlated with the distributor. got a new one. no difference
#16 - fuel injector **FIXED**
#41 - O2 heater circuit **FIXED**


the dreadful rotor button screw came detached and bounced around.... i think that is what is causing my #9 code. EDIT:NOPE!!! NEW DISTRIBUTOR DIDNT CHANGE THAT

harness(pre taped)


any thoughts or directions you guys think i should take?


i had a dream that it was all of a sudden running perfectly smooth. this has been a project long in the making.... i just wanna get it all done so that i can get things rolling

ghosthatch

160 views.... not anyone can confirm anything im asking about nor can anyone give me any direction???

Emeraldbomber

It not wanting to go over 3500 tells me it's a timing issue or ignition issue. Go from there. Why don't you pull it and check if the 3rd injector is spraying. Make sure it's getting voltage by checking the connect at the junction block

ghosthatch

that means its in limp mode. i already mentioned that the distributor was trashed. im waiting on a new one to come in so i can go on

ghosthatch

help me

HondaPartsHero

What ECU?
What distributor?
Are you using a 4 wire O2?
Sounds like you're going to have to do some continuity checks with your wiring from the sensor to the ECU and double check how you wired them. Its a really hard issue to navigate from a computer screen on custom wiring like you've done. Check, double and triple check all your connections for looseness, accuracy, etc.

ghosthatch

i have obd1 p75, p28, p28 hondata, p28 crome
obd1 integra distributor
4 wire O2

my question is which wires do i test and how. i know how to test for voltage and can check for continuity if i know which wires i check with. but how do i go about doing that with the harness? do i do like voltage and just use any ground?

how do i reach the harness plugs in the bay and the ecu harness with the same multimeter?

ghosthatch

so, i fixed two of my initial problems. i can bring it past 3500 rpms now. still trying to pin down that cyp code.