mayfly

So i get a CEL after driving for a while, like 30 min or so. but if i turn the car off then back on the CEL is gone for about 20-30 min, occasionally 10 min.

i pulled a code using a paper clip and i got code 1.

so i then changed out my o2 sensor. reset my ecu drove for a while. and BAM! the CEL is back. any ideas?

Former User

Are the O2 wires cut and spliced or stock?

mayfly

the wires are a stock fit. no splices

Former User

What year/engine?

mayfly

car is a 92 vx. with a d15b7. the engine harness is a ls harness.

now this could be a big issue. the o2 sensor is on the cat. should i plug the hole for the cat and run the plug to the header?

Former User

The O2 sensor definitely belongs in the header before the cat.

How many wires does your O2 sensor have? What ECU?

mayfly

it is a 4 wire. and it is the p06 ecu

Former User

Start by installing the sensor before the cat.

mayfly

ok. will do. ill let you know what happens. thanks

mayfly

ok so i did all that and used a o2 sensor from my buddys car. so its for sure a working one. im still having the issue. im geting code 41 now. not code 1. im lost. my idle goes up and down. any ideas?

mayfly

any ideas guys?