The Panda is sealed in a capsule which has holes in the bottom for air ingress. If the capsule is sitting on a hard surface those holes should be allowing enough air flow. Likely there is another problem like fuel
starvation. I had a small hole in the exterior Racor fuel filter
causing fuel starvation. (Later, a partially blocked heat exchanger
caused a reduction in cooling water
. Measure your exhaust water
flow. A backflushing solved
my HE problem).
Since you didnít mention temp lights being activated, fuel starvation seems likely.