so I replaced my spider all the gaskets around the plenum was drove fine yesterday after I fixed everything was driving today and I stalled out and I had a hard time getting it going sat for like 10 15 mins and it started and ran fine no codes came up I've done a tune up all acdelco replace fuel pump in July so I'm sure that's not it it runs strong it has 230000 km on it I just don't know what it is it did snow a lot and I was thinking maybe it sucked water as its wet snow here into the aire intake I don't know it seems to be fine for now but figured I'd post and see what you all think

 

k so the codes came back today but seems to run fine has a slight mis but you barely notice I'm thinking cleaning or replace the O2 sensors the p0171 and p0174 codes