cel 65 - Honda Prelude Forum

modmic2000 · 06-19-2003, 12:27 PM

I was in a front end accident, afterward my cel came on, I checked it and got mil 65. I assume it is 65 because there was no 'pause' between the 6 and 5. So it's 65 right? Anyway after the accident my resonator had to come off, and the radiator had a small leak. Could the code be caused by either of the two.

modmic2000 · 06-19-2003, 01:06 PM

MIL 65- Secondary Heated Oxygen Circuit

*Circuit Malfunction

-Open or short in Primary HO2S sensor heater circuit
-ECM
Doesn't this mean there is a problem with the "Primary" HO2S sensor heater circuit or ECM.

Absolut · 06-19-2003, 01:40 PM

It means there is a problem with your secondary O2 sensor

Make sure its still plugged in, its the sensor behind the cat, the second one.

modmic2000 · 06-19-2003, 02:07 PM

What about ECM?
Wouldn't Cel come on when res. is removed? I suspect res. because it happened after the accident, when I lost the res. and the radiator cracked.

Is there a specific mil code that flashes when res. is removed?

modmic2000 · 06-20-2003, 01:08 AM

Doesn't the 2nd sensor indicate if something is wrong with the cat. or the 1st sensor. I don't know why they would be on though, check it tomm.

achemze · 06-20-2003, 05:17 AM

The jolt of the collission could of broken the connector. It could of also broke the sensor. You should check it out. I'd suspect the wire got severed somehow.

The second sensor would indicate the cat, but you would be getting different codes for that.

modmic2000 · 06-20-2003, 11:31 PM

I checked both sensors and they look alright.
If the 2nd sensor is-working and I reset the ecu, should the cel go away for a period. I tried that, and the cel came right back on as soon as the car was started.