Monday (4 days time) VW are taking the car for an extended period of time to solve this issue. Before it departs should I do anything with VCDS? Perhaps a before and after scan? Anything else?
Laggy response when releasing throttle 2.0T CCZ engine
- Thread starter minke
- Start date
Monday (4 days time) VW are taking the car for an extended period of time to solve this issue. Before it departs should I do anything with VCDS? Perhaps a before and after scan? Anything else?
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It would be interesting, if as well as an Auto-Scan of before and after, you could do a Controller Channels Map of Adaptation values in the ECU before and after too.
Hi.
I know this is an old post and you've probably fixed this issue by now but I have had this exact problem with the same engine type.
Basically the problem was the throttle body itself.
I think the problem is/was caused by the engines stratified fuel mode. The throttle body goes into the fully open position when stratified fuelling is taking place, and the torque output is controlled by the fuel injectors, like in a diesel engine.
This, I guess, wears the throttle body quickly and 'sticking' occurs?
Problems like this are a nightmare!
I hope you this helps or you have sorted!
Rob
I know this is an old post and you've probably fixed this issue by now but I have had this exact problem with the same engine type.
Basically the problem was the throttle body itself.
I think the problem is/was caused by the engines stratified fuel mode. The throttle body goes into the fully open position when stratified fuelling is taking place, and the torque output is controlled by the fuel injectors, like in a diesel engine.
This, I guess, wears the throttle body quickly and 'sticking' occurs?
Problems like this are a nightmare!
I hope you this helps or you have sorted!
Rob
Hi Rob,
No I don't have is fixed yet. The car is going back to the dealer tomorrow and they're doing a live data gathering session with HQ. The tech is in the car with the laptop and the data is uploaded to HQ as they go. According to the tech, the Ross-Tech cable can show live data whereas they're locked out from that (apparently).
How can they test your theory? what can they do to prove it. They tell me that while there is no error they cannot just replace parts to try stuff. VW will make them wear the costs.
Uwe - What do you think of Rob's post?
Thanks
Well, I thought that based on the data you've already logged, that you had concluded that the throttle valve was responding properly to torque requests..?
I was also under the impression that VW abandoned the aggressive stratified strategy about a decade ago...
-Uwe-
Well, I thought that based on the data you've already logged, that you had concluded that the throttle valve was responding properly to torque requests..?
I was also under the impression that VW abandoned the aggressive stratified strategy about a decade ago...
-Uwe-
Uwe - I see the value change instant based on me stepping onto the throttle pedal. Is that enough?
It was quite a while ago this job came in, over 12 months ago, but if I remember correctly when the throttle body was off you could make it stick by moving the throttle plate with your hand. It's a bit of a faff to get the throttle body off as its bolted to the underside of the inlet manifold, otherwise would be a good quick check to do.
The guy who owned the car had real problems in traffic as it was difficult to stop the car when creeping forward a few feet.
Maybe you/they could swap one from a car with no faults? sounds like trail and error is going to be your only route.
Let us know how you get on?
The guy who owned the car had real problems in traffic as it was difficult to stop the car when creeping forward a few feet.
Maybe you/they could swap one from a car with no faults? sounds like trail and error is going to be your only route.
Let us know how you get on?
The dealer has had the car now for a solid 4 weeks. Prior to that I was to/from the dealer multiple times. As a guess they decided to replace the clutch switch. They're continuing to test however feel that it has resolved the issue.
How? what's the link do you think?
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Can you please tell me what kind of fuel u r using?! I know the most popular is cheapest 91 octane but you should use 98 in that car. Injection maps and complete torque management are affected with wrong type of fuel inside.
Most definitely 98. In Australia you can get 91, 95 and 98. the Golf GTI manual says minimum 95. I have only ever used 98 and 95% of fills are BP.
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- Joined
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If you have tool to read ECU and scope to capture real time signals and voltages on the car we can make some case study over TV so you can go to stealership and have physical evidence to throw at them 
And I can modify injection map and adjust it so you can confirm is it SW issue or HW .
And I can modify injection map and adjust it so you can confirm is it SW issue or HW .
If you have tool to read ECU and scope to capture real time signals and voltages on the car we can make some case study over TV so you can go to stealership and have physical evidence to throw at them
And I can modify injection map and adjust it so you can confirm is it SW issue or HW .
I've got the Ross-Tech VAGCOM tool. Is this enough ?