BlueBurr

Ok I have another check engine light problem once again. Whenever I start the car up of course the check engine light comes on for a sec. whenever you first turn the key. Well, then a few seconds after its started the light comes on again at idle. Well I checked the engine light code and its 41 which is the Primary Oxygen Sensor Heater? I am not sure what it means when its talking about the oxygen sensor heater? New one on me. If you guys could help me out I would appreciate it. Oh I guess some car info would be helpful, I have a 95 honda civic with a b18b1 swap and I am also turbocharged. I run a S-AFC 2 and an FMU. on stock injectors. I know that S-AFC2 is pretty much pointless right now because of my injectors being stock but I got ripped off. Anyway, I guess I may need to just replace the oxygen sensor in there and see if that fixes the problem. Any advice will be helpful especially if someone can explain to me the oxygen sensor heater thing?
Thanks,
Steven Combs

BlueBurr

Actually one website states that the 41 light is Primary Oxygen Sensor - Heater circuit malfunction

shadyGs-R

an o2 sensor is nothing more than a sensor that tells your car to either add fuel and stop making so much fuel. it tells the computer the Air/Fuel Ratio. It tells the computer if your running either To rich or To lean.

superbluecivicsi

change out the o2 sensor.

__________________
99 JRSC@9.5 psi si- I voted for the Terminator for Gov.
95 HB- B16a2- SC34@12psi
WTB: USDM B16a2 or B16a3 complete short block. pm is the key.
FS: B series InlinePro cast mani, PnH RC 550s, and Hondata S2b. pm me.

superbluecivicsi

also, for $50 you can pick up some dsm 450s and a resistor box

__________________
99 JRSC@9.5 psi si- I voted for the Terminator for Gov.
95 HB- B16a2- SC34@12psi
WTB: USDM B16a2 or B16a3 complete short block. pm is the key.
FS: B series InlinePro cast mani, PnH RC 550s, and Hondata S2b. pm me.