PDA

View Full Version : How many oxygen sensors does the CL9 Accord Euro have?


unity
29-06-2009, 11:31 PM
How many oxygen sensors does the CL9 Accord Euro have?
aaronng
30-06-2009, 01:45 AM
One primary O2 sensor to measure A/F ratio and one secondary O2 sensor to measure cat efficiency.
unity
30-06-2009, 01:55 AM
One primary O2 sensor to measure A/F ratio and one secondary O2 sensor to measure cat efficiency.

Thanks Aaronng. Are they heated? Are they wide ranged?
aaronng
30-06-2009, 09:43 AM
Thanks Aaronng. Are they heated? Are they wide ranged?
The primary O2 sensor is narrowband. Not sure if they are heated, but when exposed to the hot exhaust gas, they become hot anyway.
ECU-MAN
30-06-2009, 10:12 AM
both are heated
CRXer
30-06-2009, 02:21 PM
both are wideband arent they?
thought all the K O2's were current driven wideband?
unity
30-06-2009, 04:32 PM
both are wideband arent they?
thought all the K O2's were current driven wideband?

I think one is voltage driven and the other amp driven but not sure which is which. I believe wideband is amp driven.