Sambal is sneaky because the portion looks tiny but it is oil dense. That deep red glossy look? That is oil. A couple of tablespoons of sambal tumis is around 150 calories, almost all of it from the frying oil and the sugar that balances the heat. The chilli, shallots and tamarind are basically free.
It is a condiment, so the damage depends entirely on how much you scoop. A little dab to lift your rice is fine. Half a plate of sambal because it is so good, plus petai or ikan bilis on top, and you have quietly added 300 calories to your meal. Spicy does not mean low calorie bro, never has.