Which back pressure tester do you have?

[FiendFX]

I need one that will fit on all domestic and asian vehicle. Please share. Thanks.

 

[1949 caddyman]

I took an old O2 single wire sensor & removed the wire & end that goes in exhaust. The GM sensors have a small hollow tube that I put a long vacuum nose on. Worked good & was free.

 

[firebox40dash5]

Other than flange-mount Toyotas, what is there that isn't standard M18 on the O2 sensor? I figure if it's got a cat (and needs to keep it) it's got an O2 sensor... and the semi-universal Bosch sensors for Toyotas come with a flange-threaded adapter plate.

We had a Lang at my last shop, it got used like 3 times and never showed a clogged cat. It's a 0-15psi gauge, a fitting, and some vac line.

 

[Fedwrench]

I think the Waekon one is rebadged by most trucks.

http://www.tooltopia.com/waekon-bpt02.aspx

Tooltopia has 6 different models available

 

[jgorm]

You can make one, or buy one. There is one on Amazon for $38. Lots of guys run a couple feet of copper before they go to tubing as a heart sink.

 

[GTA Matt]

I had an m18x1.5 adapter that can thread into o2 bungs in my compression tester kit, threaded an adapter into it and can either hook it to my vacuum gauge or pressure transducer.

 

[FiendFX]

Other than flange-mount Toyotas, what is there that isn't standard M18 on the O2 sensor? I figure if it's got a cat (and needs to keep it) it's got an O2 sensor... and the semi-universal Bosch sensors for Toyotas come with a flange-threaded adapter plate.

We had a Lang at my last shop, it got used like 3 times and never showed a clogged cat. It's a 0-15psi gauge, a fitting, and some vac line.

What do you use for the flange mount type on toyotas? I actually work on toyotas mainly?

 

[jmm]

I check back pressure on DPF units (diesel tech). I've got a piece of brass I use to plumb in this:

http://en-us.fluke.com/products/all-accessories/fluke-pv350-pressure-vacuum-module.html

 

[FiendFX]

I check back pressure on DPF units (diesel tech). I've got a piece of brass I use to plumb in this:

http://en-us.fluke.com/products/all-accessories/fluke-pv350-pressure-vacuum-module.html

It's nice but have noisy signal.

 

[MechanicNamedJohn]

I have the Lang version; it's nice. But, the easiest and most accurate would be an oscilloscope with pressure transducer during a running compression test. No need to pull the O2, just remove a spark plug.

 

[1949 caddyman]

If you have a Scanner look at map sensor. Lower vacuum at 2500 rpm than at idle is a restriction, normaly the exhaust.

 

[Rioredsn8k]

I use the Matco TU24APB. It works on all makes, just a little pricey.

 

[firebox40dash5]

What do you use for the flange mount type on toyotas? I actually work on toyotas mainly?

I never actually used it on Toyotas... but pretty sure I have one of the plates that came with a crappy Bosch sensor, which I had on my truck before I learned that Toyotas hate Bosch.

Here's one on ebay for less than that, though.

 

[Jeeper]

I took an old O2 single wire sensor & removed the wire & end that goes in exhaust. The GM sensors have a small hollow tube that I put a long vacuum nose on. Worked good & was free.

Can you post a pic of the setup?

 

[GTA Matt]

If you have a Scanner look at map sensor. Lower vacuum at 2500 rpm than at idle is a restriction, normaly the exhaust.

I do that often to confirm that yes, there is indeed a restriction, but for vehicles with multiple cats on one bank or cats on both banks, you still have to get your hands dirty to pinpoint which one.

 

[1949 caddyman]

Here is the sensor

 

[1949 caddyman]

It will only let me post one pic a a time

 

[1949 caddyman]

This is with the vacuum hose. I am using an ipad, is this the one picture problem?

 

[FiendFX]

This is with the vacuum hose. I am using an ipad, is this the one picture problem?

This oxygen sensor came from a chevy truck? How did you cut off the sensor?

 

[jim faston]

I have one of the Thexton kits but I've never used it. I wouldn't want to punch a hole in a perfectly good exhaust.

http://thexton.com/index.cfm?pageid=42&search=389

 

[1949 caddyman]

This oxygen sensor came from a chevy truck? How did you cut off the sensor?

I put the sensor in a vise on the hex nut part . Juat start removing material with plyers. There is ceramic inside, break it off. The wire is removed. I did this 10 years ago, memory fading. Try it with an old sensor, i think you will see what i mean. Yes it was a GM single wire sensor.

 

[FiendFX]

I put the sensor in a vise on the hex nut part . Juat start removing material with plyers. There is ceramic inside, break it off. The wire is removed. I did this 10 years ago, memory fading. Try it with an old sensor, i think you will see what i mean. Yes it was a GM single wire sensor.

Thanks I will try it.