O2 Sensor constant readings of 10.7

dampa · Post by **dampa** » Fri Mar 19, 2010 5:47 pm

I have a 01 civic thats k20a2 swapped running hondata on a rsx-s ecu.

I am constantly reading a A/F of 10.7 on Hondata. Ive replaced the O2 sensor, which did not fix the problem. I also replaced my wiring today with a Hybrid-Racing Conversion Harness and im still getting the same problem.

What else can I check?

bruny · Post by **bruny** » Sat Mar 20, 2010 4:01 pm

is it showing a cel light?did you get the correct 02 sensor? the us , jdm spec sensor,

dampa · Post by **dampa** » Mon Mar 22, 2010 6:03 pm

i was getting the p0134 & p1166 with my old sensor. replaced it with a Denso 234-9005 and the problem is still there but only throwing a p1166.

o2 readings are still pegged at 10.7

I checked the fuses, fuses are not blown. Wiring seems to be fine.

kb58 · Post by **kb58** » Wed Mar 24, 2010 7:25 am

When you figure this out please post here. I have the same problem, though mine's stuck at 14.7. Doesn't matter if the engine's running, doesn't matter if the sensor's plugged in - never changes.

Post by **Spunkster** » Wed Mar 24, 2010 9:15 am

When you have error codes it is best to follow the troubleshooting steps in the Helms manual.

Floppie · Post by **Floppie** » Wed Mar 24, 2010 6:56 pm

FWIW both of them sound like wiring issues. 10.7 is the minimum reading - it can't read any richer than that; 14.7 is the "default" reading - if you turn the key on but don't start the motor, 14.7 is what you'll get. One might be a bad ground, while the other might be a bad input line.

sandrei · Post by **sandrei** » Fri Jul 02, 2010 12:00 pm

any feedback on this? having the same issue here. Checked plugs,wiring,all ok!!! and still errrorr

mkulak · Post by **mkulak** » Mon Jul 05, 2010 1:14 pm

I have the same issue with a car I was tuning but the car has no error codes. I'd love to know what the issue is...

VT-Doo · Post by **VT-Doo** » Wed Aug 04, 2010 11:46 pm

What ECU have you guys got?