coreyhayman

my new motor dont got an o2 sensor on the manfiold, where is it?....the cat?.....cuzz i need to wire in my air/fuel guage but dunno how to goabout this, the motors a b18c1 btw.

imported_fatredcircle

it should be located on the downpipe. The bottom of the header.

coreyhayman

^^^^^ thx, im gonna go take a look

imported_fatredcircle

np, ya actually might have 2 o2 sensors.. one pre cat, and one post cat. damn obd-ii cars

Cynikal.Mindset

hook it up at the ecu...I dunno what pin it is on an obd1 car but in 4th gen civics its pic c16 on the ecu (white wire with pink stripe)

I hooked up mine the other day and its suprisingly accurate and doesnt bounce around as much as people say it does. when cruising it stays within the stoich section, at full throttle it goes rich and on decel it goes towards the lean side and back in stoich area

its fun to look at too LOL

1niceSi

When did you get a b18c1?

I guess this would explain why you're selling your DIY T-Kit.

coreyhayman

i got rid of my 4th gen civic...i got a crx now with a b18c1 with type-r internals.

imported_fatredcircle

white wire (might have a black stripe) from the sensor or ecu pinout d14 (b-blocks)


o/t but a/f gauges are so ricey
They're useless other then a cool christmas time decoration.

Should look into getting an EGT gauge, or a real afr gauge like greddy's.

imported_gatherer

hook it up to the O2 wire on the ECU.....better spot for it.... and no I'm not getting into signal refraction theories and all that stuff....

coreyhayman

k im gonna try this all tommorow, thx guys

StreetWyze

Hook it upto the ECU like everyone else said. If you decied to hook it upto the o2 directly, do not cut the wires between the sensor and the harness connector, bad thing too do. cut and splice between the ecu and harness connector.