Codes 41 and 12
Thread Starter
Junior Member
Joined: Dec 2005
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From: Alexandria, ky, usa
Codes 41 and 12
what do these two codes meen?I get these when I pull the code on my 90 accord ex.I've had a check engine light for years.The car runs fine but it's a little hard on gas.Could it be the o2 sensor?
Modified by Dmc1 at 9:58 PM 1/15/2006
Modified by Dmc1 at 9:58 PM 1/15/2006
Honda-Tech Member
Joined: Jan 2003
Posts: 8,132
Likes: 5
Re: Codes 41 and 12 (Dmc1)
12 = EGR lift valve.
41 = O2 sensor heater circuit.
Unplug the O2 sensor, measure resistance between the 2 same-color wires. Should be 10 to 40 ohms. If that's OK, then look for wiring problems in the car for that circuit. (Loose plug?)
My EGR hasn't screwed up, so ???
41 = O2 sensor heater circuit.
Unplug the O2 sensor, measure resistance between the 2 same-color wires. Should be 10 to 40 ohms. If that's OK, then look for wiring problems in the car for that circuit. (Loose plug?)
My EGR hasn't screwed up, so ???
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