About 5 months ago I had trouble with my EGR valve, and instead of replacing it like I did on previous occasions I decided to do an EGR off and a step 1 to 150hp at Gdm performance. At first the car ran like a charm until the trouble started again. The symptoms are as follows: The car loses all power like it did before when the EGR valve was broken. But after I restart the car it works again as usual. Does anyone have any sensible tips on what this is due to?

The car in question is a Fabia 1.6 tdi cayb 90hp original.

Thanks in advance

Didn't block my EGR on my 1.9 Fabia but had the same sort of issue is the engine management coming on when you get the power loss?

At first mine would loose power and no engine light would come on, turn the car off start again it was fine, then it started loosing power and the management light would come on, again turn the car off and start again and it was fine light went out , it kept getting more often then the light would not go out car was still running but as you said power loss

The issue i had on mne was the actuator unit on the turbo , it was faulty but only at certain times would it fail to work correctly, tried a few things fist before finding this out IE turbo pressure pipe leaks sensors etcalso cleaned the turbo out but none of these worked, I bought a actuator from ebay it was new but not VW genuine swapped that out and never had any issues after that

Edited 11 October, 202511 Oct by Murdockman
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No i dont’t get any engine management lights on, that is the tricky part. Will check the actuator later on. Please note that this happens only in low speed. And the Dpf isn’t that full to make a block.