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Post by alanross on Jan 9, 2020 17:23:16 GMT
Hi guys.. I learned that obdeleven could read the timing chain deviation but requires a code number for the model of our car.
I'm driving a 2014 golf 1.4 tsi, does anyone know what is the procedure to do this check through the obdeleven?
Appreciate all your replies..
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Post by bmugs88 on Sept 11, 2023 13:05:02 GMT
Hey, I know this is an old post, but did you ever get this sorted? I'm trying to do the same thing.
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Post by dv52 (Australia) on Sept 11, 2023 23:12:28 GMT
bmugs88 : Measurement of timing belt/chain stretch on MQB platform cars is done like this:
- Make sure the engine is at operating temperature and idling
- Fire-up OBD11 software and connect to the car
- Navigate to the Control Unit screen
- Select the Engine module (@ address hex01 on the CAN network)
- Scroll down and select Live data
- Enter "phase" into the search box and select Camshaft adaptation intake bank 1, phase position
The reading from this channel is displayed in degrees. Now, I have never been able to find any official explanation of the meaning of this measurement - but my hunch is that the channel measures the relative displacement between the crankshaft position and the position of the camshaft(s) with Top-Dead-Center being the reference point. If my guess is correct - clearly the ideal reading would be 0°. However, in the real world and with the granularity of modern measurements- this ain't going to happen!
So - whilst accessing the reading as described above is relatively easy - making sense of the reading is more problematic! As I have said, I haven't been able to find anything official - but the traffic-light categories below seem to be a common agreement- it's from another forum ( HERE)
- Green zone: newly installed chains and low-mileage cars 0 to -2 deg.
- Yellow zone: -2 to -4 deg. Some sources suggest to be alert even if the value is below -3 deg. and monitor the value almost as often as check your oil level
- Red zone: -4 deg and less. Be ready to replace the chain.
Don
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Post by martinnnnn on Jan 26, 2024 16:37:41 GMT
Hello,
First of all, thank you very much for this topic, there is almost nothing about this on internet.
I was able to try this measurement on my GTI mk7, (CHHA) with 122 000 (km) and I got following:
- Camshaft adaptation intake bank 1, phase
position = 0.0°
- Camshaft adaptation exhaust bank 1
phase position = -1.5°
Now the question is, if I got ideal result with 0,0° or the reading from the car was not correct?
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Post by dv52 (Australia) on Jan 26, 2024 21:33:15 GMT
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Post by raspberry on Aug 20, 2024 1:16:52 GMT
how can i do this with the 3.0T in my 2010 s4?
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Post by candasm on Aug 21, 2024 10:24:59 GMT
Hi bmugs88 , I checked my car's live data as well but my values are a bit different. - Camshaft adaptation intake bank 1, phase position: 1.5 ° - Camshaft adaptation exhaust bank 1, phase position: -1.8 ° As I understood all the information based on negative numbers. What about my "intake bank 1, phase position" is that all right or bad? Also I found this on internet, I don't know how correct this information. Thanks, Candas. bmugs88 : Measurement of timing belt/chain stretch on MQB platform cars is done like this:
- Make sure the engine is at operating temperature and idling
- Fire-up OBD11 software and connect to the car
- Navigate to the Control Unit screen
- Select the Engine module (@ address hex01 on the CAN network)
- Scroll down and select Live data
- Enter "phase" into the search box and select Camshaft adaptation intake bank 1, phase position
The reading from this channel is displayed in degrees. Now, I have never been able to find any official explanation of the meaning of this measurement - but my hunch is that the channel measures the relative displacement between the crankshaft position and the position of the camshaft(s) with Top-Dead-Center being the reference point. If my guess is correct - clearly the ideal reading would be 0°. However, in the real world and with the granularity of modern measurements- this ain't going to happen!
So - whilst accessing the reading as described above is relatively easy - making sense of the reading is more problematic! As I have said, I haven't been able to find anything official - but the traffic-light categories below seem to be a common agreement- it's from another forum ( HERE)
- Green zone: newly installed chains and low-mileage cars 0 to -2 deg.
- Yellow zone: -2 to -4 deg. Some sources suggest to be alert even if the value is below -3 deg. and monitor the value almost as often as check your oil level
- Red zone: -4 deg and less. Be ready to replace the chain.
Don
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