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You are watching: 2004 toyota tacoma o2 sensor bank 1


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Truck idles very low, surges, and sometimes stalls at idle. Ns took it come Autozone and they put the scan tool to it and told me it read "o2 sensor, financial institution 1, sensor 1, low input". Didn"t phone call me the code number. I"m assuming that means the prior sensor is bad. If so, I will certainly definately obtain one native URD, but is there something else I have to check prior to getting a new sensor?Thanks!
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A dirty MAF sensor will provide out the very same code. Clean the MAF and also throttle body, reset and shot it out..
I"m proud come have had the privilidge to meet some of the biggest CT"zens in the world. At mini-meets, satisfy n greets, vehicle shows and also TacOberFest. It every started best here..

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I cleaned the MAF, the accelerator body, and my wait filter. Confirm for vacuum leaks and replaced the vacuum water tap to the S/C bypass valve. It had actually cracks at the link to the intake, yet I don"t think it was bring about a leak. Inspect engine light went out. Van still idles down genuine low, surges (hunts) and sometimes stalls when the engine is warm. Idles fine once cold. Ns took it back to Autozone and also no error codes come up. Can it it is in a throttle place sensor walk bad? AZ man thought that could additionally be the idle waiting valve.....??? :shrug: The idle waiting valve is virtually $200 and also I don"t want to throw parts at it uneven I"m pretty sure they"re the ideal parts. Any ideas?
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It could be the front O2 (air/fuel) sensor. I"d journey it because that at the very least 100 miles, because you reset the ECM and let it re-learn everything. And, after 100 miles if the CEL come on again, climate you recognize the former sensor is more than likely bad.. Ns doubt its the TPS..
I"m proud to have had actually the privilidge to accomplish some of the biggest CT"zens in the world. At mini-meets, satisfy n greets, automobile shows and also TacOberFest. It every started right here..
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How should I clean it? when I cleaned the TB i squirted TB cleaner into the hole that goes right into the ACV in ~ the bottom the the TB. Do I need to take the apart or squirt cleaner into the vacuum (?) hose link that goes into the ACV?
I simply put a k & n Cold waiting Intake on my "04 D-Cab 3.4L, and I am having the same problem. One point extra ns do notification though. Mine driveway has a slight grade to it. If i am in my driveway the stormy idle will recover when it gets to about 400RPM"s. Once on flat ground, it will certainly pretty much stall. Also, do you have an automatic or Standard. Mine is Automatic, don"t think it would certainly make a difference, but with a typical Tranny, I can see it being less complicated to accelerator it up v your foot once stopped in ~ a red light.
My 2000 3.4L is having actually the exact same problem, check engine light"s to be on due to the fact that I to buy ir 4 months ago and in the previous month it"s to be surging and stalling as soon as I walk from increasing to neutral. I"m placing in new o2 sensors this weekend yet I"m wondering if theres something else that may be leading to it.

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Here"s part tips on troubleshooting the prior sensor.http://www.barisalcity.org/forum/showthread.php?t=87146
Old van - S/C"ed 2000 2wd 3.4L V6 Xtracab SR5 :burnout:I"m going to Twitter her Yahoo till I Google anywhere your Face...Book.
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