Replaced 02 Sensor on 02 Sequoia and Engine Light Cae Back on

Flash333 [OP] Member

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Hi all
So i replaced my O2 sensor yesterday. The Bank 1 sensor 2. Everything when fine. I cleared the alarm with my OBD2. Now today on my way home from work, the check engine light came back one and yes, it is the same alarm. Sensor O2 Bank 1 Sensor 2.

??????? Should i just burn the truck and buy a new one?????

Joke aside, i dont know where to go now for troubleshooting...

Any takers ?
Steves104x4 Well-Known Member

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Steve

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BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.

Check the wiring isn't pinched or burned especially around hot areas of the engine. Also exhaust leaks or restrictions. EVAP emissions system or fuel pressure.
Flash333 [OP] Member

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all right !! ill check that out. could fuel pressure really do that ??
Also, for more info, my OBD2 says i'm in the yellow for emission control. (if that means anything) and i have four lights flashing on it.. one is the O2S, Cat, and two others that i have no idea...

cheers
Robertgeejr1 Well-Known Member

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Aorora, Ill, yeah!

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I have done all the hi-pro mods for a life time, since I got this truck at a great price, I will be happy with showroom new.

on any car i have had i always unhook the battery for 30mins to reset it.
its the old fashion way, but that is the way i am. don't know if this helps.
Flash333 [OP] Member

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Nice !! the good ol redneck way... But yeah, i can reset it with my OBD2 but it keeps coming back... thanks anyways
RAT PRODUCTS Well-Known Member

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Smokin with a smarty.

I replace oxygen sensors in pairs. If one is bad, chances are the other one is failing too.
bicklebok Well-Known Member

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Ronnie

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What brand O2 sensor did you buy? Denso is the only way to go on these trucks.
I replaced mine about 6 months ago, and the light came on about 3 more times over a few hundred miles. I reset it each time, and it has now quit coming on.
dud122 rabble rabble rabble

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Dan

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2004 Tacoma DC

OME up front, Dakar in the back, Elite front bumper, Warn winch, Tactical rear bumper with tire swing/jerry cans/hi lift, Revenge Fab. sliders, Tundra brakes, Camburg UCA's, Safari Snorkle, FJ TRD wheels, Lights, CB, Switches, skids, LED's... OH MY!

i went back and forth trying to fix the same problem... replaced both sensors twice over a couple years... now the only way i can keep the CEL off is if i run premium gas. if i fill up with regular the light will be back on by the end of the tank and it will take about 1-2 tanks of premium before it stays off. i've tested it several times and it happens like this every time.... i just figure the truck is getting picky in its old age.
Advance Auto, Autozone, or O'Reilly Auto Parts will do a code reset for free... Could just be a fluke with the sensor tripping... Try having it reset once or twice and see if it comes back on, if so, replace the sensor with a OEM.
Flash333 [OP] Member

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thanks everyone, will try your tricks for a lil while and see. I bought that sensor off ebay and i dont even know what kind it is. Ill buy a denso if that doesnt work.
dud122 rabble rabble rabble

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OME up front, Dakar in the back, Elite front bumper, Warn winch, Tactical rear bumper with tire swing/jerry cans/hi lift, Revenge Fab. sliders, Tundra brakes, Camburg UCA's, Safari Snorkle, FJ TRD wheels, Lights, CB, Switches, skids, LED's... OH MY!

try rockauto.com
they have very good prices. i get all my OEM replacement parts from them.