How to Use Smoke Tester to Find EVAP leaks | Audi 2.0T P0455 & P0456 Common Cause | Ancel 1000 Smoke

In today's video we are testing this 2009 Audi A4 2.0T for vacuum leaks after having several fault codes showing up. A vacuum leak not only causes a Evap Error codes to appear, but can also cause misfiring, rough idle, poor mpg, and even put your beloved car into LIMP mode in an effort to protect itself.

A vacuum leak allows too much oxygen to enter the system past the critical sensors usually. So now all these sensors are having a false reading or trying to compensate for this extra air in the system. This is why your car can run so rough when this happens.

Often times folks just start replacing parts. Replacing hundreds of dollars' worth of parts only to have the same issue pop up since it was a vacuum leak the whole time. A smoke tester is a cheap way to properly diagnose your car BEFORE you start replacing parts. I wish I had one of these much sooner!

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[MarzNet]

Cool. I just picked up this unit for 93 bucks and it came with a free inflatable bladder as a promotion.

[electric]

Mineral oil works just as well and cheaper than baby oil.

[RedEyedJedi]

I think that's the same 2.0 tsi engine I have in my Scirocco. I have the exact intake manifold but that rubber part you took off is not on my manifold for some reason.

[anthonyrivvy]

What is the cap you removed from the intake?

[chicho]

but, why you test ava leak like engine leak ?

[CalHunsinger]

the cap on back can i replace that clamp w a screw on hose clamp or does it have to be crimped

[grantcunningham]

I’m so happy with how easy these parts are to change

[mikemasso]

A quick note on these Chinese evap testers. They put out way to much pressure
for evap testing. The maximum pressure for the evap system is .5 psi or around
13.0 in. H20. The Ancel is putting out way over .5 psi. Anything over 7 psi
can damage pressure sensors and or blow off hoses. 14 psi is OK for intake
and exhaust testing but way to high for evap.

[CalHunsinger]

the cap on back can i replace that clamp w a screw on hose clamp or does it have to be crimped

[troymiller]

Where do you connect for evap? 455 error. Large leak

[RomanTrollanski]

You could find with air compressor included for same money.

[kastromario]

I said that this type of machine also works for gasoline leaks I would like to know in which hose to put the smoke