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Has anyone else noticed a slight engine surging during a regen?

I noticed it a couple of years ago, but it would only happen once in a while, and usually only when the car was regenning at slow speeds (20-35 mph) and low RPM. If I was very lightly accelerating or maintaining a slow speed, such as in heavy traffic, the engine would do slight surging. It would immediately go away when more heavily accelerating and was never noticeable at highway speeds.

Lately, however, I've noticed it more often, and I've even noticed it a couple times at highway speeds. A couple of days ago I was crusing down the freeway on cruise control at 65 mph and it was very noticeably surging during a regen.

Has anyone else experienced this?
 

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I've never noticed this in mine.
 

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Yes, both mine do it, sometimes it's barely noticeable. That said my Cummins Bluetec diesel truck does it, with every regen, and it's quite harsh. Compared to what the Cruze does, it's not even on the same order of magnitude.

Sent from my Moto G (4) using Tapatalk
 

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2014 Cruze Diesel, 2007 Cobalt, 1981 Camaro Z28, 2017 Volt
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In theory, it makes sense. It needs to inject more fuel to perform the regen, but when you get to heavy acceleration, it's putting in enough fuel to keep the temps up. It probably just has a slight delay when you command more acceleration for it to adjust the extra fuel needed, if any at all.
 

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Never noticed that on my 15 with 19.5k miles, looks like my fuel filter will get changed around 40k miles
 
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