Sorry to hear of your plight.
Excuse my ignorance but I'm assuming the GSR kit still has a filter somewhere? If so, get that changed straight away as if it's a paper one it'll be holding water like a sponge and confusing the crap out of the MAF sat just the other side. This has actually saved an E46 M3 of mine in the past as it held all the water, preventing it going any further. If it uses a cotton type filter you may not be quite so lucky.
Next on my list would be plugs, leads and coil pack. If none of that cures it then it's compression test time, although I'd do this anyway considering you'll have the plugs out.
We had a SportKA in recently that had been through a 'puddle' and it turned out to be a bent con-rod on number 3 - customer ended up putting a new engine in it under warranty.
Good luck with whatever route you choose to take but I'm sorry to say I don't think Fiat will entertain any form of warranty claim.
Ben
Excuse my ignorance but I'm assuming the GSR kit still has a filter somewhere? If so, get that changed straight away as if it's a paper one it'll be holding water like a sponge and confusing the crap out of the MAF sat just the other side. This has actually saved an E46 M3 of mine in the past as it held all the water, preventing it going any further. If it uses a cotton type filter you may not be quite so lucky.
Next on my list would be plugs, leads and coil pack. If none of that cures it then it's compression test time, although I'd do this anyway considering you'll have the plugs out.
We had a SportKA in recently that had been through a 'puddle' and it turned out to be a bent con-rod on number 3 - customer ended up putting a new engine in it under warranty.
Good luck with whatever route you choose to take but I'm sorry to say I don't think Fiat will entertain any form of warranty claim.
Ben