Does the ecu perform in a closed loop regarding a/f and then go to open loop at full throttle?
greg
Honda ecu
Does the ecu perform in a closed loop regarding a/f and then go to open loop at full throttle?
greg
Wide Band Sensor
My recollection is that the oxygen sensor is of the wide band design, and therefore the fuel strategy stays closed loop at all times. Disclaimer: I am not 100% confident on this; interested in what the smarter people have to say on this.
If I recall correctly I think the only thing that changes how the O2 sensor works is water temp: like if it's below the minimum operating temperature (which I think is 167F). Even then it's not as big an issue as if you start running above 210F on water temp (where the engine loses power noticeably).Originally Posted by GregPeluso
Works on water temp? How would that figure A/f ratio?
greg
Is the o2 sensor a stock o2 that I could buy at a parts store?
greg
I think it's just inoperable when it's cold. But I'd double check that with HPD.
Yes, but it's not from the Fit. If my records are correct the part # is 36531rcaa02 (I think it's an early 2000's Accord). The best pricing I've been able to find is from HPD.
If you've got the fault light hooked up you should be getting a code whenever the engine is running (7 flashes) if the O2 sensor or the wiring is bad.
Looks correct. RockAuto lists equivalent parts for that from about $84 to $130 USD, and shows compatibility with... ...a mid-2000s Accord.
If anyone needs a PDF of the manual for the ECU, shoot me a PM...
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