CEL #41 Primary oxygen sensor heater

[cvc7chris]

how do i fix it. i reset the ECU by taking out the 10A fuse for a few minutes and also disconnecting the battery for like 10 minutes. i tried two dif. o2's and still throwing the same code. the code comes on after i drive it for like 5-10 minutes and after it comes on it will come on after like a few seconds after i've started the car

[porter351]

get a chipped ecu thats how i fixed mine

[Night Wolf]

^^^ lol cheater!

[cvc7chris]

any way to fix it without messing with the ECU?

could mine be bad? everything else is fine..other than that damn CEL # 41

[cloudasc]

Try another ecu? Maybe the o2 sensors your testing with are bad? The wires or connectors connecting them might be bad?

[NinJa_FLiP]

sounds like the o2 sensor is throwing a CEL after yer car is warmed up.. same thing happened to mine, but a brand new o2 sensor fixed that.. if u used a new sensor, check the wires and make sure none are messed up..

[IAmTheNight]

Start diagnosing....

[nine_deuce]

Had the same issue. My check engine light would come on within a few seconds of starting my car, it was the o2 sensor code every time. Got to reading in the Hayne's manual that the o2 sensor doesn't start reading or sending info to the ecu until it reaches 600 degrees or so, well, the o2 sensor won't get that hot that quick, come to find out, my ecu was bad. Put a new ecu in, no more check engine light

[cvc7chris]

so it's my ECU?

if it is anyones got a cheap used one on here? or maybe i'll check the jy...

[0to60n2weex]

usually if it's a heater circuit code, the o2 sensor is bad...or at least the wiring is bad. Happens alot on them universal Bosch sensors. i would test with direct fit that you know is good. thats really the only way to know if its a good o2 or not.

[Gotz Cb7]

Are you getting Bosch o2 sensors? If so, that's your problem.

[NinJa_FLiP]

keep hearing bad things bout the bosch.. but i picked up a denso o2 direct-fit sensor for ~$55 shipped online.. only had it for 1 month but works great so far..

[Gotz Cb7]

Yea, been down this road before. I broke mine when I redid the exhaust, and figured I'd just go get a bosch for kicks, and 10 minutes after driving....CEL came back on. Just ordered another Denso from www.carpartswholesale.com. 80 bucks, but it's well worth it.

[cvc7chris]

i see...

the o2 sensors i'm using are oem i think...

i really don't know what to try next. i can buy a new o2 sensor. or a ecu but i don't wanna buy both when i don't need both. i guess advance auto parts might take refunds if it keeps throwing codes