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post #1 of 7 Old 14th July 2016, 02:13 AM Thread Starter
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Vanos Bleed / Test

How are you guys invoking the Vanos Bleed and Test procedure in ISTA D when you don't encounter a vanos code in the DME ?

I'd like to read more about the procedure (offline) but it seems like the only way I could invoke the procedure is if the car has already encountered a vanos fault code during a vehicle test.
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post #2 of 7 Old 14th July 2016, 02:23 AM
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Maybe you can get to it by selecting the DME on the graphic screen of all the ECUs and then clicking the selection (I can't remember what it's called) for components down on the bottom just left of the middle. I believe that this takes you to a list of a number of the components including VANOS and throttle actuators.

I think that you can do something there but I don't know if it's tests or the bleed procedure.

Wow. Reading over that - it's really vague and wishful-thinking. But I'm too lazy tonight to boot ISTA up.
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post #3 of 7 Old 14th July 2016, 06:13 AM
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In Autologic it's really easy lol.


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post #4 of 7 Old 15th July 2016, 01:51 AM Thread Starter
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Here are the results I got from the Vanos Test on another persons car.

I ran the test twice back to back.
Test 1 - First 2 pics
Test 2 - Last 2 pics

Intake results listed only. (Exhaust results were close to being fine)

Notice on Test 2, bank 2. The max/min stops have gone way off on the 2nd test ! not to mention the spread time.

Vanos Bleed / Test-t1-bk1.jpg
Vanos Bleed / Test-t1-bk2.jpg
Vanos Bleed / Test-t2-bk1.jpg
Vanos Bleed / Test-t2-bk2.jpg

Last edited by Mover; 15th July 2016 at 01:53 AM.
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post #5 of 7 Old 15th July 2016, 05:42 PM Thread Starter
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I should have continued with more back to back testing since inconsistent results were obtained.

If it were a pressure problem, I would have expected more than 1 of the stops to not be obtained. Going to have to verify the pressure on the car as well. Maybe HP line.

Could possibly be a solenoid that is real bad but then again I haven't seen anyone on this board have their max/min stops affected by solenoids.

This car isn't well.
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post #6 of 7 Old 16th July 2016, 02:42 AM Thread Starter
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post #7 of 7 Old 18th July 2016, 03:56 AM Thread Starter
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I tested the same car again 2 days after initially testing it and got different results again !! Can't be a good sign.
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