Weird..................
Fuel suply system ?

I was working on my car today, ran it for a while and I threw a cell, so i proceeded to check it out and i threw a 43.

? Has anyone ever thrown that. I reset the ecu and same result ?

P72 UD, JDM H22, 92 CX hatch

Thanks Cole

 

it happened to me once one of my injectors was unpluged, if thats not it then it's in the wiring

 

its allmost allways the heated o2 sensor having a open in the sensor.

 

Fuel Supply??? sounds like its getting too much fuel. Check your spark plugs and see what they look like. Is it running rich?

 

the fuel supply will be set by the o2 sensor being out of the the factory range .250mv to .850mv if the o2 sensor spends more of the time out of range then it will throw this code. first off did you do something fuel related to the car? if not check for a clogged cat clogged a dirty fuel filter or o2 sensor. if you have a o2 sensor lying around and you dident do anything fuel related i would try that first

 

I jacked ther car up on one side while it was running? Maybe that didit. Ill check my o2 tonight as well. Thanks Cole