ya just a inspection camera to look at the honeycombs inside to see if it melted or not.
a backpressure test is done with a fitting on the 02 sensor port with a hose and gauge there are youtube videos around that show how it is done
What do I all need to clean the throttle body? 2014 Tahoe
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a backpressure test is done with a fitting on the 02 sensor port with a hose and gauge there are youtube videos around that show how it is done
swathdiver
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The car will be a dog with a clogged cat. With a dead cat the downstream O2 sensor will move like the upstream sensor.
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iboughtatahoe23
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Saw that video, have to drill a hole :/ not sure how I feel about that. Won’t that make exhaust leak worse?
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iboughtatahoe23
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How can I study this on the PID banks on my scanner? How they “move”, I think I asked this already. Please excuse me if I did.
How should the graphs look?
No you use the 02 sensor bung, drilling a hole is not going to help anything lol
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iboughtatahoe23
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I saw a video where a guy drilled a hole before the cat to take the pressure with a gauge.
There is a hole already where the sensor mounts
swathdiver
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You can just look at the numbers or run a graph. The upstream sensors should move up and down constantly once warmed up. The downstream sensors don't move much, change position with different throttle positions and stay put pretty much. If a downstream sensor moves like an upstream sensor, that's the sing of a bad cat.
There are lots of videos on youtube showing this.
Cleaned mine today it's not even dirty a few smudges, I keep it clean though
Cleaned the maf also
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iboughtatahoe23
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Man, thanks for this info. This is what I was looking for.
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iboughtatahoe23
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Cleaned mine also! Checked that off the list. Waiting for AutoZone to open tomorrow to see if they have a throttle body gasket.
Then I’m gonna take a wack at that.
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iboughtatahoe23
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Honestly excited to get working on mine, like to tinker. Good work there man.
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iboughtatahoe23
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Weird. Wonder why he drilled a hole before the cats?
Idled right back where it normally does
Maybe that vehicle did not have a pre cat 02 sensor
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iboughtatahoe23
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That interface is awesome. What you doing to view PIDs?
aftermarket radio, pioneer and maestro rr, links the obd port to radio interface
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iboughtatahoe23
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Alrightttt so @Doubeleive now I’m scared to even touch the throttle body
www.tahoeyukonforum.com
Yikes
Idle relearn / throttle body cleaning
I cleaned my TB on my 07 Tahoe ... I took it off completely and cleaned it out it back now it idled at 2k RPMs ... someone help it’s annoying Sent from my iPhone using Tapatalk
www.tahoeyukonforum.com
Yikes
although a relearn could be possible, it's a rarety to have any issueAlrightttt so @Doubeleive now I’m scared to even touch the throttle body
Idle relearn / throttle body cleaning
I cleaned my TB on my 07 Tahoe ... I took it off completely and cleaned it out it back now it idled at 2k RPMs ... someone help it’s annoying Sent from my iPhone using Tapatalk
Yikes
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