Fuel pump relay looks good, it is 1 year old.
The pump sounds normal (normal hummm).
Took the car during lunch time, at a stop light noticed some hesitation. It made that strange bopping sound coming from engine compartment (not backfiring). As if the intake plate opens and slams close, and opens again. Bop, bop.. and runs fine.
Idles OK. I am at a loss.
I wonder if water could have gotten in the intake somehow, but it all looks dry now.

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1999 Porsche 996 Carrera Convertible
1994 420E - SOLD
1986 300E - SOLD, what a car
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