reset ECU, but CEL comes right back on!
 

I don't know what the crap is up. I failed emissions a little over a month ago and am therefore trying to fix the issue...
I just replaced my primary oxygen sensor, then when I went to go reset the ECU, the CEL came back on not within miles, but within seconds!
What does this mean??
I checked the code and the light blinked 6 slow times and 5 regular, but I can't find the chart anywhere that tells you what each number means. Even if it was anything bad, shouldn't that light not come on for X amount of miles?

RE: reset ECU, but CEL comes right back on!
 

65
Accord Civic CRV CRX Del Sol Odyssey Prelude
96-98 96-98 97-98 n/a 96-97 96-98 96-98 Oxygen Sensor Heater (Secondary)
malfunctioning or defective oxygen sensor heater

[&:] maybe your secondary sensor

RE: reset ECU, but CEL comes right back on!
 

Code 65 indicates a problem with the heater element of the secondary O2 sensor (after the cat). The CEL turns ON immediately because the fault with the O2 heater circuit is sensed rapidly by the ECU. Replace the sensor.

RE: reset ECU, but CEL comes right back on!
 

Ok bought it, will install tomorrow...
I really need to pass emissions soon, my time is running out

RE: reset ECU, but CEL comes right back on!
 

depending on your local laws, there might be a dollar amount of fixed/replaced parts, that allows you to be exept for that years test. In Wisconsin, if you exceed 500 or 600 dollars in attempts to pass emissions, they let you go for the next two years.

RE: reset ECU, but CEL comes right back on!
 

I heard it was 300 but i can't find the rule anywhere :/

RE: reset ECU, but CEL comes right back on!
 

I dont think its gonna be 300 cause most of the emmission stuff costs a lot

RE: reset ECU, but CEL comes right back on!
 

replaced the back one and now it's going ok, lets see how long before it comes on again lol

RE: reset ECU, but CEL comes right back on!
 

crossed fingers