DTUK Setting - 184 DSG

[Alienatrix]

Strangest thing happened today.

I've had the box on with Map 2+3 for a couple of months now.

Tried different settings and maps but settled for 2 + 3 as the car seemed to pull the best under those settings.

However, earlier on today I put my foot down to join the Motorway and Limp Mode came on.

I managed to clear it with the OBDeleven dongle, but everytime I tried a different map+3 it seemed to cause the Limp Mode to come on.

Common sense suggested that the car wasn't liking the +3, regardless of the map.

So I lowered it to 1+2 and it works fine.

I suppose the question is this..If the car was running fine on 2+3 so far, is it possible that Limp Mode could all of a sudden be caused to come on.

Btw, OBDeleven picked up Low Fuel Pressure as the cause.

Any advice or suggestion as to why this happened would be appreciated.

Thanks.

 

[Zaco95]

It’s different car to car like mine is fine on and setting on +1 but I tried 1+2 and had a similar case where I put my foot down and limp mode come on.
Mine cleared with just turning the ignition off and back on though.
Havnt tried the setting again since that....might try it again at some point though.

Every car is different and by the sounds your car at that particular moment said no.


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[davidstarkey11]

I run 1+3 on mine all of the time unless I'm doing a long motorway trip (3+0) and never have an issue. Strange. Was your engine cold at the time?

 

[Alienatrix]

It’s different car to car like mine is fine on and setting on +1 but I tried 1+2 and had a similar case where I put my foot down and limp mode come on.
Mine cleared with just turning the ignition off and back on though.
Havnt tried the setting again since that....might try it again at some point though.

Every car is different and by the sounds your car at that particular moment said no.


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Thanks for your input.

I guess I was more confused by the fact that it'd been running fine on 2+3 so far but then to go on Limp Mode all of a sudden is what surprised me.

I've heard of cars going to Limp Mode when trying a new Map and setting, but never once one has been running on it for some time.

 

[Alienatrix]

I run 1+3 on mine all of the time unless I'm doing a long motorway trip (3+0) and never have an issue. Strange. Was your engine cold at the time?

Not full fully warmed up, but then not fully cold either.

However, it's never done it before, even when booting it when the engine wasn't warmed up.

Strange..

 

[davidstarkey11]

Not full fully warmed up, but then not fully cold either.

However, it's never done it before, even when booting it when the engine wasn't warmed up.

Strange..

Hmmmmm

 

[Alienatrix]

And now the strangest thing is happening.

Irrespective what setting I have it on, the Limp Mode is coming on.

I'm having to keep using OBDEleven to erase it, but as soon as the ignition is off and then on again, the Limp Mode is there..

 

[Zaco95]

And now the strangest thing is happening.

Irrespective what setting I have it on, the Limp Mode is coming on.

I'm having to keep using OBDEleven to erase it, but as soon as the ignition is off and then on again, the Limp Mode is there..

Try putting the blanking plate in place of the chip and try


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[Zaco95]

Just drove home on 3+2 with no issues
Did a 0-60 test and it came out at 5.5 seconds so quite happy with that!


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[Alienatrix]

Finally a bit of success.

I put the blanking plate and cleared the code.

Drove it hard for a bit.

I then reconnected the DTUK box and drove it hard, and thankfully no Limp Mode any more.

Happy with that.

Whatever was causing it, seems to be gone now.

 

[motty225]

My 2018 s4 has done the same this week, ran it on 1+0 all the time I've had it fitted which is about 4 months, this week it chucked it into limp mode, left it over night and all was fine next day, couple of days later it did the same again, currently has it plugged into the blank for a couple of days to see if it will do it again, so far it hasn't happened with it plugged into the blank

 

[Zaco95]

Finally a bit of success.

I put the blanking plate and cleared the code.

Drove it hard for a bit.

I then reconnected the DTUK box and drove it hard, and thankfully no Limp Mode any more.

Happy with that.

Whatever was causing it, seems to be gone now.

Glad to hear that worked for you!


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[Alienatrix]

Glad to hear that worked for you!


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Thanks for that.

I will be taking it for a 30 mile motorway journey tomorrow, so we'll see how everything goes..

 

[Alienatrix]

The Leon never ceases to amaze me.

So after yesterday's saga with the Limp Mode being caused by the DTUL box, I reconnectex it this morning and went for 1+2.

My goodness, the car pulled like a train. Never felt it pull as hard in the past.

The way the car built up speed was something else.

So, 1+2 it will be for a while..Well, until it throws another Limp Mode that is anyway.

 

[Zaco95]

The Leon never ceases to amaze me.

So after yesterday's saga with the Limp Mode being caused by the DTUL box, I reconnectex it this morning and went for 1+2.

My goodness, the car pulled like a train. Never felt it pull as hard in the past.

The way the car built up speed was something else.

So, 1+2 it will be for a while..Well, until it throws another Limp Mode that is anyway.

I found 1+2 to be very good and pulls very well....but yes ended up with limp mode when accelerating hard at higher speed....

Let’s see how you get on!


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