08-18-2018, 09:37 PM
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#1
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Fuel/Air sensor (Not Oxygen sensor)
Need to change the air/fuel ratio sensor on sons 04 4.0ltr engine. I’ve read that on the 4.0 the upstream are air/fuel sensor, NOT oxygen sensors. Most threads I read elsewhere, people had to go to Toyota for an original part that was $200 for 1!
What about this as an alternative?
https://shop.advanceautoparts.com/p/...l+ratio+sensor
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04 V8 SE, RST Twin stick conversion. 4x4 Labs rear bumper, SW Sliders & Bullbar, ARB Locked F&R, 5.39’s, Smittybilt 10,000lb winch, 1.5 4Crawler BL, Flowmaster, CB and 2m/70cm Ham, Sat. Radio, CO2 system, Lightforce, African Outback Rack, Budbuilt, Front Runner RTT. Rock Solid Toys Solid axles, Atlas Crawl Case, 40" Cooper STT Pro's on Fuel Anza D116 beadlocks, 5:38 gear set, ADS Coilovers.
Last edited by WhiteBoomer04; 08-20-2018 at 04:23 PM.
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08-18-2018, 10:46 PM
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#2
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Link doesn’t work.
The one you want is around $100 on rockauto. Denso part 2349047 , works for either upstream left or right on the ‘04 V6
Denso makes the OEM sensors for Toyota so it’s basically the same part as the dealer just different packaging.
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08-19-2018, 02:00 PM
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#3
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08-19-2018, 07:59 PM
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#4
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I recently bought them for my ‘04 V8, and ordered them right from Amazon for about $50 each. I looked up the correct Denso p/n for all the sensors, then found them on Amazon. On the V8, the 2 front ones are the same number, but the rears are 2 different numbers because they have different length harnesses, not sure if it’s the same situation for the V6.
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08-20-2018, 04:21 PM
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#5
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Quote:
Originally Posted by Terminator03
I recently bought them for my ‘04 V8, and ordered them right from Amazon for about $50 each. I looked up the correct Denso p/n for all the sensors, then found them on Amazon. On the V8, the 2 front ones are the same number, but the rears are 2 different numbers because they have different length harnesses, not sure if it’s the same situation for the V6.
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The V8 has all oxygen sensors.
The V6 has two air/fuel sensors upstream.
Oxygen sensors are different from air/fuel sensors.
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04 V8 SE, RST Twin stick conversion. 4x4 Labs rear bumper, SW Sliders & Bullbar, ARB Locked F&R, 5.39’s, Smittybilt 10,000lb winch, 1.5 4Crawler BL, Flowmaster, CB and 2m/70cm Ham, Sat. Radio, CO2 system, Lightforce, African Outback Rack, Budbuilt, Front Runner RTT. Rock Solid Toys Solid axles, Atlas Crawl Case, 40" Cooper STT Pro's on Fuel Anza D116 beadlocks, 5:38 gear set, ADS Coilovers.
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08-20-2018, 04:21 PM
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#6
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Quote:
Originally Posted by lightfreak
Link doesn’t work.
The one you want is around $100 on rockauto. Denso part 2349047 , works for either upstream left or right on the ‘04 V6
Denso makes the OEM sensors for Toyota so it’s basically the same part as the dealer just different packaging.
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Thank you for this 
Fixed my link. Same part #
Ill compare prices now.
Much appreciated!
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04 V8 SE, RST Twin stick conversion. 4x4 Labs rear bumper, SW Sliders & Bullbar, ARB Locked F&R, 5.39’s, Smittybilt 10,000lb winch, 1.5 4Crawler BL, Flowmaster, CB and 2m/70cm Ham, Sat. Radio, CO2 system, Lightforce, African Outback Rack, Budbuilt, Front Runner RTT. Rock Solid Toys Solid axles, Atlas Crawl Case, 40" Cooper STT Pro's on Fuel Anza D116 beadlocks, 5:38 gear set, ADS Coilovers.
Last edited by WhiteBoomer04; 08-20-2018 at 04:25 PM.
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08-20-2018, 04:36 PM
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#7
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Supply only. Shipping extra
Rock Auto $110.79 + $11 tax
Advanced Auto Parts $139 + $13 tax
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04 V8 SE, RST Twin stick conversion. 4x4 Labs rear bumper, SW Sliders & Bullbar, ARB Locked F&R, 5.39’s, Smittybilt 10,000lb winch, 1.5 4Crawler BL, Flowmaster, CB and 2m/70cm Ham, Sat. Radio, CO2 system, Lightforce, African Outback Rack, Budbuilt, Front Runner RTT. Rock Solid Toys Solid axles, Atlas Crawl Case, 40" Cooper STT Pro's on Fuel Anza D116 beadlocks, 5:38 gear set, ADS Coilovers.
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08-20-2018, 06:10 PM
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#8
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Quote:
Originally Posted by WhiteBoomer04
Supply only. Shipping extra
Rock Auto $110.79 + $11 tax
Advanced Auto Parts $139 + $13 tax
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There’s a 5% discount code for rock auto on here, look for their sub forum under official vendors & sponsors.
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08-21-2018, 07:32 AM
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#9
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Quote:
Originally Posted by WhiteBoomer04
The V8 has all oxygen sensors.
The V6 has two air/fuel sensors upstream.
Oxygen sensors are different from air/fuel sensors.
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This is the first time I’ve ever heard that. From all the reading/research I had done, I was led to believe that the front sensors are used to determine air/fuel mixture on the V8 as well, but I could be wrong. Where did you get that info from? Either way, I decided to change all 4 since I have 127k on my truck, and have a CEL that I’m hoping will go away in doing so. I haven’t changed them out yet, just ordered the front ones to start with, then after those are installed, I’ll order the rear set at another point.
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08-21-2018, 11:08 AM
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#10
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Pass. side is fairly easy BUT driver side is a real  so before you start goggle this for info ! I needed 3 different wrench's, cut myself on the brackets & I'm a skinny ol man ! Found mine on Amazon decent price one side is more not sure why .  
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